2026-05-28

Project Debug | General Engineer | Singapore (HYBRID) | Full-time | debug.com Project Debug raises, sorts by sex, and releases millions of (non-biting) male mosquitoes in Singapore to reduce the local mosquito population and prevent the spread of dengue and other mosquito-borne illnesses. Our trial in Fresno, CA showed a 95% reduction in female mosquitoes during the seasonal peak. Our engineering team is pretty small and we need a solid generalist engineer who is interested in becoming a domain expert in our factory, where we do automated rearing and sex sorting. If you run a homelab, have tinkered with Arduino, and can prompt/write some Python, we can teach you everything you need to know about our stack (Go, Python, React, Kubernetes, Tensorflow). Reach out to katejm@debugproject.com and please mention HN in your email.

MONUMENTAL | https://www.monumental.co/ | Amsterdam, The Netherlands | Full Time | Onsite We make robots that autonomously construct buildings. We are currently developing and manufacturing our autonomous bricklaying system in the beautiful centre of Amsterdam. And our robots are already earning real revenue operating on construction sites all over the Netherlands. We're looking for experienced software engineers for many roles. You can help us solve problems like: - Data sync and analytics queries across a fleet of robots (that can be offline for hours at a time) - Modelling buildings in code and finding the right UI for operators to edit them - Designing systems for robots to drive safely and fully autonomously around a building site Check out the progress we've already made on Atrium, our operating system for robotics: https://www.monumental.co/atrium We're rapidly scaling up operations and we need experienced engineers who can build the systems that manage all of that complexity. If you think that 'full-stack' could reasonably mean debugging firmware, mixing buckets of mortar _and_ writing React components, we are looking for you. Robotics experience not required! https://www.monumental.co/jobs

CodeWeavers | St Paul, MN, USA | Full Time | REMOTE | Wine and General Open Source Developers | C-language systems programming https://www.codeweavers.com/about/jobs CodeWeavers needs new, full-time developers to improve Wine's ability to run games and other types of software and integrate well with the native operating system and other system components. Positions are available to work on a variety of Wine-based software, including CodeWeavers's own CrossOver product; the Proton project for Valve Software; and projects for other clients and software internal to CodeWeavers. We are hiring remote programmers, US or international, as well as workers local to Saint Paul, Minnesota. We will consider relocation, if desired, on a case-by-case basis. Please see link above for information, benefits, requirements, and how to apply. Please direct any questions to the email address on our Jobs page.

OpenVPN Inc. | AI Platform Engineer | REMOTE (US) | Full-time | $140,000 - $150,000 per year Come work at OpenVPN! Yes, THE OpenVPN! You'll own everything from developer tooling and internal AI workflows to cloud infrastructure and governance-defining standards, security, and cost controls from scratch. If you want to build the AI layer for a real company (not just models, but the systems around them), this is a high-ownership position shaping how AI gets deployed, used, and scaled across the org. We want to use AI to improve productivity and efficiency and make our employees even better. This role will shape the future of the company. Apply here: https://careers.openvpn.net/o/ai-platform-engineer

FUTO | https://futo.tech | Austin, TX | Remote or Onsite | Full Time FUTO is an organization dedicated to developing, both through in-house engineering and investment, technologies that frustrate centralization and industry consolidation. Our work consists of a combination of in-house engineering projects, targeted investments, generous grants, and multi-media public education efforts. We are hiring for a few of our software projects, and our stealth hardware project. We are hiring for: Mobile Developer - Immich : https://futo.tech/jobs/mobile-developer-immich Rust Developer - Polycentric: http://futo.tech/jobs/rust-developer-polycentric App Developer - Polycentric: https://futo.tech/jobs/app-developer-polycentric UI/UX Designer: https://futo.tech/jobs/ui-ux-designer-general RISC-V CPU Architect: https://jobs.gusto.com/postings/jdwk-inc-risc-v-cpu-architec... Design Verification Lead: https://jobs.gusto.com/postings/jdwk-inc-design-verification... More details and job postings here: https://futo.tech/jobs We have hired five employees from these HN postings, so we highly encourage people to mention that you came from here in your email. To apply, send your resume and cover letter to jobs at futo dot org.

Amplify Renewables | Senior Software Engineer, Data Platform | REMOTE (US; SF or Seattle a plus) | Full-Time | $150k - $250k (all cash) | https://amplifyrenewables.com We're a systematic energy forecasting and trading company working to make the grid more predictable and reliable. We ingest a lot of messy, heterogeneous data (market, generator, weather, outage) and build models to forecast it. You would work closely together with the founders and take over the technical direction for our data systems end-to-end. Team is ex-D.E. Shaw, Optiver, and Stanford. We're bootstrapped, profitable, and growing. Compensation is all-cash and paid from company profits, not venture funding. What we're looking for: - 4+ years shipping and maintaining software - Strong Python skills (writing, maintaining, packaging) - Experience with multiprocessed and HPC workloads - Crisp written communication — we're deep-work focused and async-heavy Nice to have: data lake / Parquet architectures, Rust (esp. PyO3 extensions) Remote-first. We meet in person multiple times a year. Non-US candidates welcome if you can overlap 4+ hours with PST. Apply: email hiring@amplifyrenewables.com with resume + an (optional) short note on a data platform problem you've owned. Please mention HN. Search terms: data platform, data engineering, Python, Rust, Parquet, HPC, energy, power markets, ISO, forecasting, trading, Polars

IPinfo.io | Various Roles | Remote (Anywhere) | Fulltime / Partime / Contract | https://ipinfo.io IPinfo is a leading provider of IP address data, including geolocation, VPN and residential proxy detection, mobile carrier data, and over 20 other context tags. Our API handles over 120 billion requests per month, and we also license our data for use in many products and services you’ve likely interacted with. We’re a fast-growing, bootstrapped company with a globally distributed team of around 60 people. Our data powers customers such as Cloudflare, T-Mobile, SpaceX, DemandBase, and Clearbit, among many others. We also sponsor and contribute to academic conferences like ACM IMC and ACM CoNEXT, staying closely connected with the internet measurement and research community. - Infrastructure Engineer - read more and apply at https://ipinfo.applytojob.com/apply/d9CPSFceDF/Infrastructur... - Internal tools / Retool Engineer - read more and apply at https://ipinfo.applytojob.com/apply/76y0IV5x3X/Retool-Develo... We're always on the look out to strong software or data engineers with an internet measuremenet / analysis background to join our team too!

Form AI | Full-Stack AI Engineer (Contract) | REMOTE (US) / Austin | https://formai.build Form is an AI fluency/integration startup for executives & their teams. We build AI applications tailored to how clients work, and need an engineer to do the building. A typical engagement starts with a client describing a workflow eating their week. You scope alongside them, then build something that makes it disappear. Stack is whatever fits: TypeScript and Python, React or Next.js, Claude and other LLM APIs, integrations with the SaaS our clients use (Notion, Slack, Google Workspace). RAG, agents, prompt engineering, and evals when the work calls for them, not for show. We're looking for someone who has shipped end-to-end as an early engineer somewhere small, has real opinions about LLM applications, and writes readable code. Comfort scoping with clients and communicating in writing is essential, since most of our work happens that way. 1099 fractional, paid monthly. 10-20 hrs/week, $75-150/hour. 40-hour monthly minimum, scaling with client demand. Potential to convert to a full-time role ($150k-$220k) as the practice grows. Remote, Austin/US-based. To apply: https://formai.build/jobs or email jobs@formai.build.

Charge Robotics | Multiple Roles | Full-time | Onsite | SF Bay Area Hi HN! We’re a YC-backed, Series-A startup building robots that build large-scale solar farms. Check out a video of our first system here! https://youtu.be/ZZ2fP1Y5Z2E It turns out that construction companies literally can't build solar fast enough, so what we're doing is a crucial part of switching the grid over to renewable generation. You’ll be a key contributor, helping bring our next generation of mobile solar factory to life. Come work with us if you love: * Fast-paced prototype development with software and hardware components * Making a positive climate impact through your work * Hacking on massive construction equipment! Senior Robotics Software Engineer: https://jobs.ashbyhq.com/charge-robotics/b2aa347c-4738-4065-... Senior Mechanical Engineer: https://jobs.ashbyhq.com/charge-robotics/19133a2e-f262-4f3d-... Lots more: https://jobs.ashbyhq.com/charge-robotics

NetBird | Berlin, Germany | ONSITE & Remote for some roles | Full-time | https://netbird.io We build open source secure remote access for teams and infrastructure. 25k+ stars, Series A. Our mission: make secure connectivity simple and accessible for everyone. Looking for people excited about the product, startup pace, and growth. Actively hiring for: - Senior Backend Engineer (Go, networking, distributed systems) (Onsite) - Staff Software Engineer (Go, systems design, scaling) - Engineering Manager (leading teams, dev productivity, scaling eng org, IC is a plus) - Head of Growth (PLG, dev tools, OS motion, conversions and funnels) - Product Marketer (IT/dev audience, positioning, content & GTM strategy) - Solutions Engineer (customer-facing, highly technical, bridge product & users) You’ll be working on modern networking infrastructure and helping shape both the product and the company. Please email me at: veronica.external@netbird.io and connect with me on Linkedin (if you have) at https://www.linkedin.com/in/veronicaroman718/ We are actively hiring and will respond to all applicants. To see more roles not listed here: https://careers.netbird.io/

In The Loop (intheloop.engineering) | Senior Consulting Engineers | Remote (US time zones) We’re a small group of senior engineers who help non‑technical AI founders take fragile MVPs to production‑ready systems. We come in as fractional founding engineers: review code, fix architecture, ship. Hiring: Senior Consulting Engineers (part‑time/contract) Looking for engineers who: - Enjoy advising non‑technical founders - Are comfortable reviewing AI‑generated code (Next.js, TypeScript, Python, major cloud providers) - Have shipped production systems end‑to‑end and can explain technical trade‑offs to non‑engineers - Have actually used AI tools in their own side projects or daily workflow - Can handle a mix of architecture reviews, roadmap planning, and hands‑on implementation Details: - Part‑time/contract to start (typical 5–20 hours/week, flexible) - Fully remote with meaningful overlap with US daytime - Work directly with early‑stage AI founders on short, high‑leverage projects Compensation: market‑rate contracting, typically 100–200/hr depending on experience and scope Apply: Email humans@intheloop.engineering with “HN – Human” in the subject, and a brief note on your background, availability (hours/week), and the kind of work you enjoy most.

Deep Core Technology | Founding Engineer | REMOTE (CANADA) | Full Time | Salary: $105,000 - $125,000 CAD + 1% equity Company: We’re building a geologic modelling software, based on reasoning, to help mining and mineral exploration companies work faster. Our goal is to create a way to enable open-ended, interpretive geologic problem solving to be done programmatically, changing the way to explore for hard rock and critical minerals. Currently in active fundraising. Role: You are the founding engineer on the team, joining co-founder (Neil, CEO) and myself (Jeff, CTO) as first employee. You’ll have a deep influence over systems and architecture. You will have ownership through the entire stack from the database, through geostatistical backend services, through 3D rendering on the client side. Work rooted in agentic systems, so an understanding of the internals of things like Claude Code, and a broader understanding of orchestrating agents to complete complex discrete tasks is important. You: - Fluent in Typescript, Python, and framework/tooling agnostic (Currently using things like NextJS, Supabase, Cesium) - Eager to learn about mining domain knowledge around the software. - Ownership of the codebase, and the systems that support the software (project management, CI/CD, monitoring, etc.) - Open to doing a yearly month abroad with Neil and I. Last year, it was Oaxaca, Mexico. Apply: Shoot me an email at jeff@deepcoretech.com with a resume, and a short blurb about yourself. If you include a 1 minute video/Loom, I'd love to see it. Must be eligible to work in Canada without a VISA requirement. We are located in Squamish, BC. https://www.deepcoretech.com

Loophole Labs | Senior Systems Engineer | REMOTE (Americas & Europe) | $150k–195k USD + equity | Go, Zig, Rust, C, eBPF, CRIU, Kubernetes We make Architect: a Kubernetes runtime that hibernates idle pods in place and wakes them in 50ms with TCP connections intact. Five engineers. You'd be the 6th. If tracing an x86 instruction in the morning and hunting a control-plane race in the afternoon both sound fun, and you insist on measuring rather than guessing, this is the job. Customers run Architect for workloads where cold starts hurt: real-time voice & video AI agents, long-warming JVM apps, stateful data services that can't be rescheduled cheaply. 1.0 shipped Q1 2026; you'd join mid-way through 2.0. Seed-stage, VC-funded, a few years of runway. Fully distributed across the Americas and Europe. What you'd work on: - Hibernation surface: containerd shims and CRUISE, our Zig-native CRIU replacement. - Control plane: per-node DaemonSet streaming checkpoints; admission controller resizing hibernated pods in place. - Networking and migration: eBPF/XDP at line rate; cross-node live migration to production; cross-cloud next. You're a senior generalist. Years across the stack: assembly to frontends, hardware-near, comfortable in x86. Tests ship with the code, decisions get worked out in writing, and you measure rather than guess. Strong in Go; willing to use Zig, Rust, or C. Bonus: eBPF/XDP, CRIU, Linux kernel internals, containerd, gVisor, live migration, or public writing in kernel/container/eBPF land. Strong systems depth and the willingness to pick up the rest is enough on its own. Apply: https://loopholelabs.io/careers - we respond within the week (typically a few days).

Railway | Infra Eng-Storage, Infra Eng-Observability, Product Design | REMOTE (Worldwide) | https://railway.com/careers Do you feel scared and alone when opening the AWS console? Do you wish you could just tell Claude to manage your infra, and it would just work? Do you dream of a future where software is abundant and developers and normies alike are free to build their wildest dreams? We're Railway, and we think infrastructure can be better. We're working at the forefront distributed systems engineering, interface design, and agentic computing to bring about the infrastructure platform we've always wanted. So far we've built out a platform loved by 3M+ users and we're just getting started. Fair warning! The problems are complex: racking and stacking servers, home-rolled hypervisors, cut-above container orchestration, over/under/whateverlay networks, virtio device drivers, edge proxies, IAM that doesn't suck, kitchen sinks - we need to build it and we're looking for likeminded individuals who think this stuff is fun. Three open roles (apply below!): +Senior Infra Engineer: Storage -Apply here: (https://jobs.ashbyhq.com/Railway/25d8444a-47dc-4084-ae56-29a...) +Product Designer: -Apply here: (https://jobs.ashbyhq.com/Railway/6fb07755-acd8-4400-9de3-fa5...) +Senior Infra Engineer: Observability -Apply here: (https://railway.com/careers/platform-engineer-instrumentatio...)

PostHog | Full-Time | Product engineers, backend engineers, Technical Account Managers, sales leader | REMOTE (all remote) | Hiring GMT-8 to GMT+2 PostHog makes dev tools that help product engineers build successful products. * we have a public handbook (posthog.com/handbook) if you want to learn how we work, pay and more in complete detail. * we are growing through more autonomy and transparency not through process. * we have a ton of scale and a bunch of super interesting technical problems to solve * we're building 20 more products over the next couple of years, so you could end up building one of those * public compensation calculator! see immediately what you'd get paid * we're hiring: product engineers, clickhouse operations engineer, backend engineers, product managers, technical account managers and technical customer success managers. https://posthog.com/careers

Enveritas (YC S18, non-profit) | Backend Software Engineer | Remote (Global) | https://enveritas.org/jobs/ Enveritas is a 501(c)(3) nonprofit working on sustainability issues facing smallholder coffee farmers. We collect field data in 25+ countries and build systems for analyzing risks in coffee supply chains (including EUDR-related deforestation checks). * Backend Software Engineer (Python, PostgreSQL/PostGIS, Docker, AWS, Terraform) - $135-$155k — https://enveritas.org/jobs/backend-software-eng/#10d7adef8us (worldwide remote)

PlantingSpace | Full-time | Remote (EU time zone) + Quarterly Meet-ups | https://planting.space We're building a system that represents domain knowledge as modular probabilistic models — making analysis rigorous and transparent. Users can connect these models flexibly into larger structures. The system enforces consistency across them, and propagates uncertainty through each step. Our first applications are in finance and scientific research, with use cases ranging from equity valuation and distress monitoring, to particle physics. We’re building out our team in the following areas: * Product Software Engineering (Quantitative Modeling) * Program Synthesis Engineering * Applied Category Theory Research * Bayesian Software Engineering * Finance Operations (Accounting, Analytics & Workforce) We're also looking for Domain Experts to collaborate on high-value use cases -- identifying and validating opportunities, shaping them into working solutions with our engineers, and taking them from pilot to production with real users. Practitioners with expertise in Valuation Models, Quantitative Default-Probability Models, or Interest Rate Prediction Models are particularly relevant right now. Find out more, and apply at: https://planting.space/joinus/ Questions? Get in touch: talent@planting.space

exe.dev | full time member of technical staff | sf bay area only competitive salary, meaningful early equity, 2 days a week in the downtown sf office come build a cloud. we are doing everything from custom hardware to custom ssh servers to our own global load balancer. very senior small high-trust team looking for someone we can rely on to get done whatever is most important in the stack for the business. some days that means patch the vmm. other days it means figure out passkey quirks. more about what we are building here: https://crawshaw.io/blog/building-a-cloud email me at david@exe.dev.

Axis Communications | Software Engineer - Video Management & Agentic Engineering | Linköping, Sweden (Onsite) Join a newly formed R&D team at Axis focused on rethinking how software is built using AI coding agents. Build next-generation video management software for cloud and on-prem environments while experimenting with tools like Claude Code, Copilot, Codex, and emerging agent workflows. This is a rare role where using agentic tooling isn’t a side experiment—it’s central to how the team operates. You’ll help define engineering workflows, evaluate new tools, and share learnings across the wider organization. Tech includes: TypeScript, Go, Rust Bonus: GStreamer, FFmpeg, WebRTC, UX/UI Looking for experienced engineers who ship production systems, think critically about tooling, and want to explore how autonomous agents can improve software design, implementation, testing, and maintenance. Strong fit for developers interested in AI-assisted engineering, modern full-stack systems, developer productivity, and building real products with emerging workflows. Based primarily onsite in Sweden, Linköping. Apply: https://nordictechjobs.com/jobs/nVWwRXyDjq

River | Senior + Staff Engineers (Elixir, React, ML/AI) | SF or NYC or REMOTE (US, Europe, South America) | Full-Time | $150K-$250K + equity | https://jobs.ashbyhq.com/river?utm_source=Zp9nJyqvd4 I'm Alex, founder and CEO of River. I also wrote the first line of code and still ship PRs. River is a client-first Bitcoin-only financial institution building the financial app people use every day to save in bitcoin and spend in dollars. We custody over 25,000 BTC, serve individuals and businesses across the U.S., and are profitable. We publish cryptographic proof of reserves monthly and our company financials annually. Here's what our engineering team is working on: - Real-time Bitcoin and USD payments, trading, and settlement on an Elixir monolith with a unified GraphQL API - Next-generation Bitcoin custody with quorum signing, key ceremonies, and geo-redundant infrastructure - Scaling our ML/AI systems (Python, PyTorch, XGBoost, LLMs) to automate operations and tackle fraud/risk - A ground-up React and React Native rewrite of our consumer app - Porting our Lightning Network infrastructure from Go into Elixir We're hiring: - Staff Software Engineer (Elixir) | $200K-$250K - Senior Software Engineer (React, Full-stack) | $150K-$220K - Senior/Staff Machine Learning Engineer | $200K-$250K Apply at https://jobs.ashbyhq.com/river?utm_source=Zp9nJyqvd4

Spacelift | Remote (Europe) | Full-time | Senior Software Engineer | $80k-$110k+ (can go higher) We're a VC-funded startup (recently raised $51M Series C) building an infrastructure orchestrator and collaborative management platform for Infrastructure-as-Code – from OpenTofu, Terraform, Terragrunt, CloudFormation, Pulumi, Kubernetes, to Ansible. On the backend we're using 100% Go with AWS primitives. We're looking for backend developers who like doing DevOps'y stuff sometimes (because in a way it's the spirit of our company), or have experience with the cloud native ecosystem. Ideally you'd have experience working with an IaC tool, i.e. Terraform, Pulumi, Ansible, CloudFormation, Kubernetes, or SaltStack. Overall we have a deeply technical product, trying to build something customers love to use, and have a lot of happy and satisfied customers. We promise interesting work, the ability to open source parts of the project which don't give us a business advantage, as well as healthy working hours. If that sounds like fun to you, please apply at https://careers.spacelift.io/jobs/3006934-software-engineer-... You can find out more about the product we're building at https://spacelift.io and also see our engineering blog for a few technical blog posts of ours: https://spacelift.io/blog/engineering

OpenRent | London, UK | Full-Time | ONSITE+PART REMOTE | https://www.openrent.co.uk What sucked the last time you rented a house or flat? Come and fix it. OpenRent is force for good in an industry tarnished by rip-off agencies and one of the biggest UK websites by traffic. Enabled by an unrelenting focus on technology, we let more properties than any agency in the UK. In the last 12m we let over £50 billion worth of property, to over 8 million registered users, without ever charging any admin fees. You'll be working on solving every aspect of the rental journey, from models to predict the right price of a property, to building the future of property management, all to help tenants find their dream home, and landlords their ideal tenant. We're VC backed, profitable, and have plenty of ambition to maintain our fast growth in this absolutely massive market. Roles currently available: - Senior Full-Stack Engineer | Equity | 110k+ (based on experience) + quarterly bonus All roles visible here: https://www.openrent.co.uk/jobs

Hyperspell | YC F25 | San Francisco, ONSITE | $150k-220k + generous equity and benefits | hyperspell.com I'm Manu, founder of Hyperspell. 14 Years ago I found my first job in tech through Who's Hiring. I take this job board seriously :) Hyperspell is building Context & Memory for AI agents. We're at the intersection of "future of AI and agentic computing" and "this actually works". We're not just changing how our customers use AI in their products, but are constantly iterating on how we use AI to build Hyperspell, and what it means to be a software company in the decades to come. We're hiring product, AI, and Platform Engineers in SF: https://jobs.ashbyhq.com/hyperspell Comment or reach out to founders@hyperspell.com with any questions!

SEEKING FREELANCER | Tiger Tracks (REMOTE, US/EU timezones) | Founding AI Engineer | Contract-to-hire We're a performance marketing agency (Inc. 5000 #123, ex-Google founders) hiring our first dedicated AI engineer as a contractor. What you'd build: landing page conversion analyzers, creative analyzers for video ads, vertical media buying co-pilots for Meta/Google/TikTok APIs. Real LLM tools that go into client production the same week they ship. Stack: open. We don't care which LLM provider sits underneath. The value is in vertical specialization on top. Required: top 1% with Lovable, Replit, or Cursor. Public GitHub or portfolio with shipped projects we can play with. Ability to ship a complex tool (multiple data sources, APIs, server hosting, LLM integration) in under a day. Comp: hourly contract, bi-weekly net-14, monthly renewal. Path to Head of AI for the right person. Process: 30-min intro, 45-min founder conversation, 60-min live build in Lovable or Replit (we watch you ship). Offer within 2 weeks. Apply: https://tigertracks.isolvedhire.com/jobs/1768363-447725.html with your portfolio link and one project you're proud of.

BetterDB (https://betterdb.com) (https://github.com/BetterDB-inc) | Founding Engineer | Remote | Full-time BetterDB is building the tooling ecosystem for Valkey, the high-performance Redis fork backed by AWS, Google, and Oracle. We're starting with observability — historical persistence, pattern analysis, anomaly detection, and Prometheus export — so you can debug what happened at 3am when you wake up at 9am. Stack: TypeScript, NestJS + Fastify, React, Valkey, PostgreSQL, Docker, Kubernetes, Terraform, AWS. We ship OSS self-hosted and have a live cloud SaaS: https://betterdb.com/login In the last two months we've averaged more than one release per week across multiple products and channels. That's what "moves fast" looks like in practice. We recently started moving more and more into the LLM cache space via both observability and actual libraries. We hired our first engineer in March and are looking to expand the team — no pressure on timeline, we'd rather find the right person. Just email kristiyan@betterdb.com with a bit about yourself and why this is interesting to you. I reply to everyone. It might take a day or two given volume, but you'll hear back.

Mobian | Technical PM + Senior/Staff Engineers (Systems & DevOps) | Remote US/Global | Full-time Mobian is a brand safety, contextual intelligence, and measurement company working with the world's largest advertisers and publishers. https://themobian.ai/about Hiring for four roles: 1. Technical Forward Deployed PM (Remote US) — Build and prototype client deliverables using the latest AI tools, working closely with engineering and GTM. Client-facing; must translate technical work into business value. 2. Senior/Staff Engineer — AI-First Systems + Rapid Prototyping (Remote, Global) — Two tracks: Core Systems (production APIs, data pipelines, ML deployments, cloud infra) and AI Prototyping (LLMs, browser automation, experiments → product). 10+ years experience. AI-first mindset. Strong ownership. 3. Senior/Staff Infrastructure Engineer — DevOps (Remote, Global) — 12+ years in production systems: cloud architecture (AWS/GCP/Azure), Kubernetes, CI/CD, IaC, data pipelines, ML deployments. 4. Ad Ops/Technical Operations (Remote, Global) — Deep expertise in digital ad ops and tag implementation across platforms like GAM, DV360, and The Trade Desk; 5+ years required, with hands-on troubleshooting of custom publisher setups with ad servers, ad players, and related tech a must. Email careers@themobian.com with resume, LinkedIn, and GitHub (for eng roles).

Youth Inc | Software Engineer | ONSITE/HYBRID Boston Youth Inc. is a venture-backed commerce and media company focused on the youth and high school sports market. We’re looking for an early-career Software Engineer who wants to grow fast by growing a real, production system with real customers. We’ve already gone from zero to one and are growing rapidly with customers and revenue. You’ll be building on an existing platform, improving performance, building new capabilities and integrating with partners. Core Tech Stack - Elixir - Postgres - AWS Elixir experience is ideal, but we know great people will pick it up quickly. Please email jbutler@youth.inc

Synthesia | London, Zurich, Munich | REMOTE (DE/UK/CH/ES/IE/SI/DK/CZ/BE) Synthesia is the world’s leading AI video platform for business, used by over 90% of the Fortune 100. Founded in 2017, HQ'd in London, with offices and teams across Europe and the US. Series E - backed by Accel, NVentures (Nvidia's VC arm), Kleiner Perkins, GV, and Evantic Capital. We're hiring across: Applied Research – pushing the frontier on video generation, avatars, voice and multimodal models | ONSITE (London/Zurich/Munich) Software Engineering – full-stack, platform, infra, ML engineering | ONSITE (London/Zurich/Munich) or REMOTE (DE/UK/CH/ES/IE/SI/DK/CZ/BE) Product Management – senior through to principal-levels, owning core product areas from creation to analytics, API, or distribution surfaces | ONSITE (London and Seattle for API-only) or REMOTE (DE/UK/CH/ES/IE/SI/DK/CZ/BE) Product Design – shaping how humans interact and create AI video at scale | ONSITE (London) or REMOTE (DE/UK/CH/ES/IE/SI/DK/CZ/BE) More details at: https://www.synthesia.io/careers#open-positions

Software Engineer -- Infrastructure | Oslo, Norway | Onsite Zivid is one of Norway's most ambitious new technology companies, serving the global robotics market with our 3D computer vision solutions. Our 3D cameras, serving as the eyes of robots, are essential in automating manufacturing and logistics worldwide. With nearly 100 employees, offices in six countries, and a diverse global customer base, Zivid is shaping the future of machine vision and robotics. We are looking for a Software Engineer for our Infrastructure team to add capacity to our team. - Experience with on-premises infrastructure (servers or consumer hardware, storage, network). - Deep understanding of build pipelines, Docker, GitHub Actions/Jenkins/GitLab CI, and modern DevOps tooling. - Python and Shell scripting, C/C++ is a plus. - Familiarity with monitoring, scaling, and optimizing build/test infrastructure. - Experience with virtualization/cluster management platforms (Proxmox) is a plus - Experience with mono-repos and handling LFS at scale Apply: https://zivid.bamboohr.com/careers/150?source=aWQ9MTE%3D

Chestnut | Senior Product Engineer | SF or Seattle (Hybrid) | https://jobs.ashbyhq.com/Chestnut I'm Nick, CTO & co-founder. We're Rippling, but for insurance carriers paying their sales force. Every policy sold triggers a chain of payouts across brokers, agents, and sub-agents. Today that runs on spreadsheets and legacy vendor systems and tomorrow they'll run on Chestnut. Nationwide and other major carriers have already made the switch. Revenue is up 8x in the last year. We're backed by a16z. Founding team came out of leadership at Ethos (insuretech that recently IPO'd in January). The work is state-heavy and correctness-critical: payouts that must reconcile with finance to the cent, dynamic agent hierarchies, retries, chargebacks, partial failures. These systems move real money and cannot drift. You'll design schemas, build backend logic, ship UI, deploy, and own the sharp edges that show up with real enterprise customers. Stack: Go, TypeScript/React, Postgres, Temporal, Kubernetes, AWS. We use AI aggressively and expect you to as well. We're looking for 3–6 years on real product systems. You're thoughtful about invariants and failure modes. Apply: https://jobs.ashbyhq.com/Chestnut Email me: nick at chestnutfi.com

We The Flywheel | Ho Chi Minh City (Hybrid) | Part-time | https://wetheflywheel.com We are a global media network, digital consultancy, and product studio focused on helping companies grow through technology and reach audiences at scale. We’re opening up a role for an Entry-Level Agentic Engineer in Ho Chi Minh City — someone who’s already experimenting with AI tools to build, ship, and automate things faster than traditional workflows allow. No formal coding background required — we care more about curiosity, initiative, and how you use tools like Claude Code, Cursor, or similar to turn ideas into working output. Full details + apply here: https://wetheflywheel.com/en/careers/agentic-engineer-saigon...

Pathos AI | Senior Software / AI Engineer | NYC (hybrid, 3-4 days onsite) | Full-time | $180-200K + equity | VISA Pathos is an oncology biotech building AI as the operating system for drug development. We have: - 200+ petabytes of multimodal patient data linked to outcomes - The largest foundation model in oncology (in development) - Backing to build a generational company - Founded by Eric Lefkofsky (Tempus) and Ryan Fukushima Learn more: https://pathos.com This role is 0→1 product work. You'll build: - AI agents and copilots for internal teams (BD, clinical, computational biology, lab) - MCP-style servers so agents can safely interact with internal systems - Data pipelines into a governed warehouse / knowledge graph Looking for senior software/ML engineers who: - Have 4+ years shipping user-facing systems - Are fluent in Python + TypeScript/JavaScript, comfortable full-stack - Have built LLM-powered workflows (OpenAI API or similar) - Have production experience with APIs, eventing, data engineering (GCP/BigQuery a plus) - Bonus: prior agent/retrieval/ML infra work, or experience in regulated clinical environments Hybrid in NYC (3-4 days onsite). $180-200K base + equity (3-yr vest, no liquidity until exit). Visa support available. Apply: email chris.poshka+hn@pathos.com.

Apple | Sr. DevOps Engineer | Bay Area | Onsite We are looking for a Platform Engineer with API and Infrastructure experience who has written web applications and knows how to deploy and scale code to production environments they helped create. https://jobs.apple.com/en-us/details/200631016-0836/devops-e...

Eagle | Founding Member of Technical Staff | NYC (onsite) | Full-time | $150K–$300K + equity | https://www.eagleeng.com We’re on a mission to radically transform the way we design and construct our built environment. Backed by Lightspeed Venture Partners, Eagle acquires civil, structural, and MEP engineering firms and transforms them with applied AI. Our thesis: 85% of what engineers do is automatable, yet less than 5% has been touched by AI; the largest gap of any profession. By arming designers with frontier technology, our ambition is to build the most valuable, talent-dense engineering firm in the United States. We're looking for our first members of technical staff. If you get excited about building from zero, get energized by direct access to users, and want to work in a problem domain that's barely been touched by AI, we'd love to talk. Apply here: https://jobs.ashbyhq.com/eagle/ef7cb145-536a-4ace-b6de-c8928...

Uncountable | NY, SF, London & Munich (In-Person) | Full-Stack Engineering https://www.uncountable.com/hiring/hn Uncountable accelerates R&D for industrial scientists across leading materials, chemicals, and life sciences organizations. With our SaaS solution, our customers get better products to the market in half the time. Uncountable was founded by MIT and Stanford engineers and has been profitable since 2016. Our team has grown from 50 to 150 over the last two years. Full-Stack Engineers | $130k - $220k + Equity ---> Uncountable is looking for engineers who can spearhead the development of the Uncountable Web Platform. The position is heavily product-driven and comes with challenges across the stack. LLM Applications Engineers | $130k - $220k + Equity ---> Uncountable is looking for LLM applications engineers who can push the Uncountable data model forward through LLM-native UI's and application extensions. --> Summer internships and working student positions are also available. Learn more: https://www.uncountable.com/hiring/hn Uncountable is hiring in New York City, San Francisco, London, and Munich. Contact our CTO directly at jason@uncountable.com

ko-br | Robotics, Computer Vision, Imitation Learning, Reinforcement Learning Engineers & Reserchers | https://ko-br.com | Cairo, Egypt & London, UK We build Physical AI models deployable today in warehouses to solve mundane tasks like palletizing. Our tech lets robotic arms adapt to mixed SKUs, grip slips, and chaotic environments in real time. Have a read through our manifesto: https://ko-br.com/manifesto We want you if you solve problems like an owner (no ego, no blockers). Don’t say "it won’t work." Try it. Validate it. Ship it. Engineering roles: — You're hands-on, no theory, just building — Experienced engineer? Great! Recent grad/PhD? Don't get discouraged, apply if you're itching to ship real products Why join? — Generous base + equity — Work with state-of-the-art AI and real robots (UR/ABB/KUKA/FANUC). — Build tech that solves valuable problems today. About me: Ex-Amazon/Meta. Built AI from satellite imagery to nanotech SEM, powered Alexa’s vision, led ML for WhatsApp. Now building robots that adapt to chaos. https://www.linkedin.com/in/ahmadbaracat Apply: https://ko-br.com/careers

VersaFeed.com | DIRECTOR OF BUSINESS DEVELOPMENT | REMOTE (USA ONLY) | Full-time YES, THIS IS A SALES/BIZDEV JOB ON HACKER NEWS. WE LIKE TECHNICAL PEOPLE, WHAT CAN I SAY. About us: VersaFeed is an adtech and data feed company for large ecommerce operations. We transform messy product data from enterprise retailers into clean feeds for Google, Meta, TikTok, and other global channels. Job: You will prospect, nurture, and close enterprise deals using both existing channels and your own outbound initiatives. You will also solidify current agency partnerships and create new ones. As a foundational sales hire for VersaFeed, you will help architect the division and bring on additional sales and biz dev hires. You: 7+ years enterprise sales in adtech, ecommerce, ad agencies, or highly related areas. If you come from the biz dev side, be heavily revenue-focused not "generic partnerships" focused. Strong technical skills, VersaFeed is an engineering-first company. Self-starter, not afraid to get your hands dirty. Compensation: $225K–$335K USD/year OTE. DOE, 50/50 base/commission. Benefits: 401K match (USA), healthcare, equity, fully remote. Stable company (19 years in business) with no time-wasters :) Apply: email jobs+hnsales26 [the-at-mark-thing] versafeed [the-period-thing] com

Hammock (https://usehammock.co/) | Backend Engineer, Full Stack Engineer | NYC (4 days in-person, 1 flexible) | Full-Time | $150-225k Hammock is building the first HSA/FSA that actually works for modern life — letting people spend pre-tax dollars on everyday wellness like the gym, recovery, and prevention. Backed by a16z Speedrun, and others. We're a small team in NYC shipping fast and hiring two engineers. Full JDs: https://www.notion.so/hammock/Hammock-Open-Roles-3499f813ef2... Backend Engineer — Build the financial and data infrastructure powering Hammock — payments, ledgers, health eligibility, integrations with Plaid, Finch, Lithic. Ideal: strong backend chops in payments/fintech/healthcare, deep understanding of relational/transactional data systems. Full Stack Engineer — Own product features end-to-end across web and mobile. Ship dashboards, payments UX, and other consumer surfaces. You'll move fluidly between frontend and backend and have real say in how the product works & feels. Ideal: built consumer products before, opinionated about UX, comfortable turning ambiguous ideas into shipped features. Stack: A lot of Typescript & Postgres, Next.js/Expo/React Native, Railway/Datadog/ PostHog. Reach out: hiring@usehammock.co - let us know you're coming from HN. We're a small team and will respond quickly!

Normcore.io | Head of Strategic Finance | Full-time | $100-140K USD | Remote PT/ET Hours I'm the founder of Normcore.io, an autoscaling game server hosting service and Unity plugin that includes all of the pieces you need to create a multiplayer game. We launched a few years ago and have hosted over 1 billion multiplayer games since launch. We also make our own VR titles that are built on top of our own networking tech: https://www.youtube.com/watch?v=djsPTbs7R_w I'm looking to hire a Head of Strategic Finance. We're looking for someone to model our revenue streams, create financial projections for the company, and help design the monetization strategy for our titles. We make heavy use of Claude for Excel and Claude Code to create tools to track popular titles, store charts, basically any data we can use to understand the gaming market. We then use that data to determine the direction for the company. Reasons you'd love working with us: * Work with a small, focused, and extremely talented team. * Fully remote job with flexible working hours and vacation (Our whole team is remote too) * High work satisfaction, own entire features, and work on an SDK that’s already used by 100,000+ developers. If you're interested, please send an email to careers@normalvr.com with your LinkedIn and a few sentences about why you would be a good fit for the role. Blank emails with resumés or generic applications that don't follow these instructions will be ignored.

Starbridge | Senior Engineers (Kotlin/Java/React/Typescript) | NYC or Remote | Full-time | starbridge.ai Starbridge is building an AI platform that turns large-scale public and enterprise data into reliable sales insights. We are early, moving fast, and building from zero to one, so this role will have huge ownership and product impact. Backend Engineer: (looking for Kotlin/Java/Scala experience). You'll work across the backend: building enterprise integrations, large-scale scraping and parsing pipelines, and systems that let users apply LLMs to millions of documents to generate insights at scale. AI Engineer: Applied AI plus strong software engineering. You will build, evaluate, and deploy LLM-driven features like deep document analysis and interactive chat, working with models from OpenAI, Anthropic, and Gemini. Expect hands-on Python, ML system design, experimentation, and production reliability. Bonus for RAG depth and frameworks like LangChain, LlamaIndex, or Hugging Face. We're looking to build our in-person team in NYC but also open to remote! Apply: https://starbridge.ai/careers and mention HackerNews or email recruiting@starbridge.ai with your resume.

Sectigo | Manager, Software Development | HYBRID (Canada) Ottawa | $142k - $165k CAD per year Company Description At Sectigo, we align around our mission and pride ourselves in helping thousands of customers sleep better at night. Sectigo is the most innovative provider of certificate lifecycle management (CLM), delivering comprehensive solutions that secure human and machine identities for the world’s largest brands. Sectigo’s automated, cloud-native CLM platform issues and manages digital certificates across all certificate authorities (CAs) to simplify and improve security protocols within the enterprise. Sectigo is one of the largest, longest-standing, and most reputable CAs with more than 700,000 customers and two decades of delivering unparalleled digital trust. Job Description We are looking for a talented Manager, Software Development to join our growing global team at Sectigo. The Manager, Software Development leads a team of software engineers in building secure, scalable, and high-performing applications. The ideal candidate will have a strong background in application development (PHP, Ruby, Golang, cloud deployments) best practices and a solid understanding of SSL/TLS certificates, private keys, and secure communication principles. This role combines technical leadership with strategic oversight to ensure the delivery of robust and secure solutions. Apply: https://jobs.smartrecruiters.com/Sectigo/3743990012649388-ma...

Solace Health | Multiple Engineering Roles | REMOTE (US) | Full-time | No visa sponsorship offered We're hiring Typescript Engineers on all our core groups as we're poised to double the size of our 90-person Engineering team this year. We're Solace Health. In four years, we've provided free healthcare advocacy to over 200K patients on Medicare, and just last week we opened access to everyone in the US. We exist to make sure nobody in the US has to navigate their healthcare journey alone. We hit Unicorn status after our February Series-C led by IVP, bringing us to $207M raised and a $1B valuation. Compensation and benefits are highly competitive and include equity! Open Roles - Senior Full Stack Engineer ($150k-$200k) - Senior Backend Engineer ($150k-$200k) - Staff Software Engineer ($200k-$225k, Fullstack or Backend lean) - Technical Lead ($200k-$230k, player/coach people managers) Tech Stack Typescript with ReactJS and NodeJS plus NestJS, PostgreSQL, GCP, SQL, TypeORM, and shadcn for our UI Library APPLY HERE https://jobs.ashbyhq.com/Solace?utm_source=x4QJmBQEg7 If you want to build fast with high autonomy and believe in strong typing as much as we do, we'd love to hear from you!

Hey HN! Air Space Intelligence (https://www.airspace-intelligence.com) is hiring. We are a frontier AI and product company for the critical industries and defense, backed by a16z. We’re rebuilding America’s air traffic control system from scratch. What we do in the next two years will define how this country moves through the sky for the next fifty. At the core is one of the largest real-time optimization problems in the world: how do you safely sequence ~40,000 flights/day while routing around weather, military airspace, equipment outages, and constant real-world churn? The system has to be right every time, and reliable at scale. We’re hiring across Backend, Infrastructure, and Frontend (ICs and Tech Leads). One of our roles (with a small puzzle at the bottom that routes to my email): https://www.airspace-intelligence.com/careers/role?=1336c828... - include “HackerNews” in the subject so I can prioritize. If you want a problem that is genuinely hard, consequential, and urgent - this is the moment to reach out.

Triumph Financial | https://triumph.io | Engineer (Lead | Staff) & Staff Product Manager | REMOTE (USA only) | Full Time | $150-$300k At Triumph Financial, we’re building the modern freight payments network powering over $37B in annual volume. Our mission is to make freight transactions seamless, accurate, and secure, helping an entire industry move faster. We have a variety of roles open, and I'd encourage anyone to checkout our careers page: https://triumph.io/about-us/careers/ For our Carrier vertical specifically we are looking to hire: * Lead / Staff level engineers (.NET (we have F# in production now), or Rails backend). * Staff Product Manager On the PM front: two roles, one on our user facing product, one in our operations team (ideal target candidate loves to build efficiencies). Roles are here: https://triumph.io/about-us/careers/ Please put “Ash HN” or something similar in the referrals so we can bubble you up. If you have questions, feel free to reach out directly at aanderson at tfin dot com.

Pango | Senior Software Engineer - Full Stack, Technical Lead / Software Engineer | On-site (hybrid) in Stockholm, Sweden (Visa Sponsorship possible) | Full time Pango is building the world's first Agentic Operating System for e-commerce logistics. Our vision is to create the AI e-commerce employee of the future. We are forming our core team in Stockholm and are looking for exceptional engineers. You are a good fit if: * You are comfortable maintaining, expanding and operating a substantial chunk of a B2B SaaS platform with a high sense of ownership. * You are happy to take on work that in a large company is divided into multiple roles, and execute it all at an excellent level. * You are unafraid of any technology. If we need a desktop app and you haven't done one before, you will study the documentation of Electron.js and build one. If a model for predicting delivery times is needed, you will do a literature review to find the right architecture and train one. * You have strong proficiency in any backend language or platform, with a strong willingness to dive deep into PHP/Laravel OR strong proficiency in JS/React. * E-commerce (Shopify, Magento, other platforms, shipping carrier integrations) experience is a plus. * Extra points if you write the initial email - however short - using your own words. You will take a key role in shaping the product and company, with ability to make an impact and advance career limited only by your aptitude and interest. Reach out to lukasz@pango.ai if you are interested or have any questions. We review applications immediately and move quickly.

Scholarly | Senior Software Engineer | Seattle, On-Site | Full-Time | $160k - $200k + equity + health benefits + equipment budget Scholarly is building the HR operating system for higher education. We've built a software platform that enables our customers to make data-driven decisions and to automate essential processes like performance reviews, tenure processes, leave workflows, and more. We are a venture-backed seed stage company of experienced, motivated, and collaborative folks. We are backed by leading investors in the industry and working with some of the best universities in the US. We're looking for a full-stack candidate without about 5 years of experience building web applications. We write Ruby and Rails, but we are considering candidates with other stack experiences. Engineering is based in Seattle and on site in Pioneer Square. Looking to get back to a collaborative, in-office culture post-COVID? Let's chat. If interested, please apply here: https://jobs.ashbyhq.com/Scholarly/d4c84468-fd4b-4dd7-9b22-2...

Fastly | Software Engineers (Senior, Staff, Principal) | REMOTE (US, UK, EU) or ONSITE | Full-time When you look at the headers of major websites, you’ll see us. If it has to be performant, secure, scaled worldwide, and always-on, it uses Fastly. We're a globally edge cloud platform for performance and security, emphasizing open standards, sustainable engineering, and resilience-by-design. We're hiring across compute, security, platform engineering, network and edge protocols, release engineering, network architecture, client services engineering, and more. Rather than building walled gardens, we co-founded the Bytecode Alliance, heavily upstream our work to open standards, actively author IETF drafts, and power the global infrastructure for open-source Python, Rust, Ruby, OpenStreetMap, and much more. * The Stack: Rust, C/C++, Go, Javascript, Typescript, WebAssembly (Wasm/WASI), Wasmtime, Cranelift, eBPF/XDP, QUIC, HTTP, TLS, TCP, Varnish/VCL, Linux kernel internals, distributed systems, professional services. * Apply: https://www.fastly.com/about/careers

RINSE | REMOTE or San Francisco, Los Angeles, Chicago, Boston, New York City, New Jersey, Seattle, Austin, Toronto, or Washington DC - INTERNATIONAL OK | QA Engineer | Full-Time | Salary: $40k-$100k USD | https://www.rinse.com Rinse provides dry cleaning and laundry delivery services to customers in twelve metropolitan areas in the US and Canada. We have sophisticated logistics optimization software, a polished consumer product, and firm business fundamentals. We're now over a decade old - this is a stable, yet consistently growing and innovating, company. Our engineering team is distributed across the United States and internationally, and has been entirely remote for years now, but a desk can be provided in the above cities if you'd prefer. As our QA Engineer, you'll assist in improving the quality of Rinse's software, which services our customers, valets, vendors, and warehouse personnel. You'll be involved in the full project lifecycle, from idea through documentation and feedback. You'll also drive software quality through testing, collaboration, and documentation. We're a tiny team tackling big problems, so our technical staff enjoys considerable autonomy, flexible schedules, and ambitious projects with clear and meaningful impact on our business. This season, we're particularly interested in new grads or junior engineers, to round out the team. You will join a high-caliber team where collaboration, honesty, and open communication are at the core of everything we do. Search term bingo: Logistics, Django, Python, Optimization, React, React Native, Postgres, Mobile Engineer, Automation, Delivery, OR-tools, Forecasting, Mobile QA, Mobile Testing, Test Automation, Test Engineer

Atomic Machines is building a manufacturing platform for a new class of micromachines, here in the Bay Area. We have open roles in SW/EE/ME. My team is hiring for this role, ONSITE in Emeryville, CA: https://job-boards.greenhouse.io/atomicmachines/jobs/4113507...

Forage | Senior Mobile Engineer (React Native) | Hybrid NYC (2-3 days in office) | Full-time | $185,000 - $200,000 per year base | joinforage.com Forage is a payments company building the infrastructure for SNAP EBT online. About 1 in 8 Americans (over 40 million people) use SNAP to buy groceries, and we process the EBT payments that let them shop on Uber Eats, DoorDash, and at major grocery chains. We're now building our first consumer product: a mobile app that surfaces cash rewards at partner merchants so EBT shoppers can stretch their benefits further and put more food on the table. We're hiring a Senior Mobile Engineer to own the frontend of this app. You'll oversee significant parts of the codebase, work closely with a small product and design team, and ship features that put real dollars back in low-income families' pockets. A good fit: - You have 3+ years of mobile engineering experience building end to end user solutions - You have deep React Native experience, ideally having built an app from scratch or meaningfully contributed to a production app - A track record of leading technical initiatives, mentoring engineers, and driving complex projects from design through execution YC-backed (W21), well funded, competitive comp and equity. Apply: https://jobs.gem.com/-joinforage/am9icG9zdDoQzZQuSvDKMNwsFFJ... Please mention HN in your application.

Instinct Science | Senior Full-Stack Engineer (Elixir + React) | REMOTE (US) | Full-Time Instinct Science is the AI leader in veterinary medicine. We build the platform that powers animal hospitals — a cloud-native EMR with real-time clinical decision support, applied AI, and the tools that help veterinary teams practice at their best. Thousands of users in clinics across the globe rely on what we ship every day. We're at an inflection point: proven product-market fit, scaling fast, and greenfield work ahead that will serve tens of thousands of users. Engineers here own problems end-to-end — from talking to veterinarians about their biggest frustrations, to shipping production code, to iterating based on real feedback. STACK: Elixir, React, TypeScript, PostgreSQL, AWS https://instinctscience.applytojob.com/apply/1H156iuuzg/Seni... (Applying from HN? Mention it in your application.)

Furtim Modus | Hiring Java Developer (Full-Time) | NYC (HYBRID) | $125K-$200K + equity | https://www.furtimmodus.com/software-engineer We are currently seeking a talented and driven Java Developer to join our team full-time. This is an exciting opportunity to contribute your skills and expertise to a venture backed funded fintech trading firm with emphasis in US equities capital markets tech based out of the New York City and in exchange we’ll provide you with base comp $125k-200k, full benefits, cash bonus, and equity. Requirements: - Electronic trading server-side software development experience - Experience in Open Source technologies such as Aeron Transport, Aeron Cluster, Aeron Archive, Artio, Agrona, or CoinTossX is a big plus - Experience with Adaptive Hydra trading platform is a plus - Experience with US equities trading venues is a plus Benefits: - Flexible hybrid schedule to accommodate other commitments - Collaborative and supportive team environment - Relocation assistance to NYC Metro area If you are passionate about Java development and interested in joining a fintech venture, we would love to hear from you. Please submit your resume if interested to agency@furtimmodus.com in this opportunity.

SwingVision is the AI tennis & pickleball app that provides automated stats, highlights, and line calling using just your phone. Our mission is to democratize the pro sports experience for all athletes. All positions are in Berkeley, California: - Data Labeling Intern: https://app.deel.com/job-boards/swingvision/job-details/a9a7.... - Head of Product: https://jobs.deel.com/swingvision/job-details/cb631dcb-1a80-.... - Head of Machine Learning: https://jobs.deel.com/swingvision/job-details/c2cc0f23-3e59-....

Clutch https://www.clutchapp.io - building future of padel with AI cameras | Full-time | Head of AI (Computer Vision / MLOps) | Remote (worldwide) | €70-100k + equity We are Clutch, building an automated videographer and coaching experience for padel players. We are small but quickly-growing startup with cameras in over 100 clubs around the world. We are hiring for a key position of Head of AI. Requirements: 5+ years of experience deploying AI models to production; strong hands-on experience with Computer Vision models and video understanding; proficiency with MLOps, including dataset and annotation design, model versioning, continuous evaluation, training and testing. Experience working with on-device model deployment is a big plus. Full job posting: https://clutchapp.notion.site/Head-of-AI-Computer-Vision-b5b... Contact: Kirill Paramonov (CTO) kirill[at]clutchapp[dot]io

Matterhaul | Infra Eng, AI Eng, Founding Marketer | SF (SoMa) | ONSITE (4 days/week) | Full-time | matterhaul.com Matterhaul is building an AI-native ERP for the $2T physical goods supply chain. We are replacing 30-year-old legacy systems with a unified data layer and agents that have already cut customer quote times by 40%. We are a tight-knit founding team with meaningful runway (ex-Stripe, Meraki, Verkada, Pinterest) and are hiring for three founding roles: - Founding Infra Engineer: 5+ years experience. Lead our migration to AWS/Aurora. We need someone with reliability "battle scars" who has built and owned infra from the ground up. - Founding Applied AI Engineer: Senior Eng with production LLM experience OR a hungry, AI-native early-career builder. - Founding Marketer: Strategy-first IC focused on product marketing and events for our relationship-driven customer base. US Work Authorization Required If you’re interested email britta.dance@matterhaul.com with your information.

Woosmap | https://www.woosmap.com/ | Backend Engineer (Mid-level & Senior) | HYBRID (London, Paris, Montpellier) or REMOTE (UTC-1 to UTC+2) | Full-time We run location APIs. Geocoding, routing, store locator, address autocomplete, etc. at enterprise scale. When a checkout page resolves your address, or a courier finds you first try: that's us. Stack: Python, Go, Rust, TypeScript, Valkey, Postgres, OpenSearch, Docker, AWS, Datadog. We are a small team, owning and driving complex solutions to production on a daily basis. We are looking for a good generalist to become an expert in a part of our stack. 1st PR ships to prod within a week, very little process and good team spirit! Apply: https://www.linkedin.com/jobs/view/4410617739/

Coder | https://coder.com/ | Multiple roles | Multiple locations | Full-time Coder is an AI software development company leading the future of autonomous coding. We empower teams to build software faster, more securely, and at scale through the collaboration of AI coding agents and human developers. Our mission is to make agentic AI a safe, trusted, and integral part of every software development lifecycle. Coder’s self-hosted Agentic Development Environment (ADE) is the foundation for deploying agentic AI in the enterprise. It provides a secure, standardized, and governed workspace to deploy autonomous coding agents alongside human developers, accelerating innovation while maintaining control and compliance. Coder's isolated, policy-driven environments improve productivity, cut cloud costs, and reduce data risks. Developers transition to AI at their own pace using their own tools. Platform and security teams can govern, audit, and manage a great developer experience at scale. Check out our OSS product with 100k+ stars on GitHub! https://github.com/coder All positions are fully remote in the countries listed unless otherwise specified. [1] Senior Software Engineer - US/Canada [2] Security Engineer (Product) - UK/Ireland/Poland [3] Senior Forward Deployed Engineer - London And more! Apply here + job descriptions, salary bands: https://coder.com/careers?utm_source=O2n5Ew72WD Not all of our jobs are listed here. Please note that you must submit an application to be considered for any of our positions. If you have any questions, please reach out to careers@coder.com.

Doubling | Design Engineer | Chicago or Bay Area preferred | REMOTE (US) also considered | CONTRACT (1099), 10-20 hrs/week Doubling is building a new mobile product in the health and wellness space. Small founding team, mission-driven, 0-to-1 stage. We're looking for a Design Engineer to own the mobile UX end-to-end: product design, motion / interaction design, and code contributions where it helps the team move faster. The core of the role is product and motion design; code contributions are valued but not the primary skill we're hiring for. Stack / tools: Figma, React Native, plus at least one motion or prototyping tool (Rive, Lottie, After Effects, Principle, or Framer). What we want: 2+ years combined in product design and motion / interaction design, at least one shipped mobile product, a portfolio that demonstrates both UI and motion work, and enough comfort in a frontend codebase to land small UI tweaks and animations (or genuine interest in growing into that). Bonus: prior consumer health, wellness, fitness, or nutrition product experience; design system ownership; founding / first designer at a startup. Must be authorized to work in the U.S. as an independent contractor. No visa sponsorship for this role. Details: https://www.doubling.io/careers/design-engineer Apply: careers@doubling.io

BillionToOne (YC S17, NASDAQ: BLLN) | Menlo Park, CA | Onsite We're a molecular diagnostics company. YC made a video of us recently: https://www.youtube.com/watch?v=kkv5rZhrLkc. Our software team creates products that help detect prenatal genetic conditions non-invasively and uncover 50%+ more cancer treatment options. Your code reaches patients and the providers making decisions for them. Stack: Python, React, TypeScript, AWS, Postgres. We believe in small teams with high ownership. We're hiring: - Senior Software Engineer (Prenatal, Oncology, Digital Experiences) - Senior AI Engineer - AI Engineering Intern - Lead UX Designer / Designer See our engineering specific recruiting page at https://engineering.billiontoone.com/#roles. You can reach out to me directly with a resume at kwu@billiontoone.com.

Founding AI, Data Science Lead (Possible Co-Founder Track) Pre-seed consumer health and wellness company. Product is live. IP track ready. Raising pre-seed this year. We're building proprietary intelligence on top of longitudinal biological and lifestyle data. Near-term infrastructure. Consumer company with AI infrastructure goals. What you'll do You'll be a visionary alongside the founder. Design and ship the models that power the product. Build the data pipelines, evaluation frameworks, and production infrastructure. Set the technical direction as the company grows. Who we're looking for A maker. Someone who dreams the future and then builds it. You design and you deploy. You work well with teams. Strong data science and AI engineering background. Experience with longitudinal data, time-series, or biometric signal. Medical and scientific rigor in how you think is ideal but not required. please email maggielusk@saelasync.com and mention HN :)

Y Combinator | Product Engineers on YC's own team | San Francisco | Full Time | $185K-$485K I'm Ryan, an EM and engineer here at YC. We have a small, 18-person software team with no PMs -- engineers own everything end-to-end. We build the software behind YC's $6B in investments: tools that help partners evaluate thousands of startups per batch, AI-powered apps that founders use every day, and platforms like Work at a Startup that connect candidates with YC companies. Engineers get unlimited AI tokens -- both for development and to build AI-powered products. What wouldn't you build to help founders + YC with that much firepower? What makes this different from other roles: * You'd learn more about startups here than you could possibly imagine. Every batch brings hundreds of founders building things across every industry, and you're right in the middle of it. * We attend Demo Day, founder dinners, and work directly with partners and many of the companies. (They make great products!) * We pay well, offer carry in the fund (like equity), and provide generous relocation support if you're not in SF yet. Two roles open: * Product Engineer -- full-stack, own the product lifecycle. Rails/React stack. Build tools that power how YC invests in and supports startups. It's a wide range, and sometimes it feels like labs-like work, other times it feels like a supersuit to power founders and our Partners like Garry and Jared. * Community Builder and Software Engineer -- hybrid role. Run YC's talent-facing programs (meetups, tech talks, career expos) AND build the software that makes them scale. You need to be a great engineer and LOVE to build and support communities. Checkout more about the roles, and email me directly if you're excited to learn more about startups than you will anywhere else - ryan@ycombinator.com https://www.ycombinator.com/careers

Seeq | https://seeq.com | Staff Software Engineer (Frontend, Backend, Platform) | REMOTE (Some crossover w/ PST required) | Full-time | $170k + annual cash bonus + equity. Salary range for US-based; local adjustments for other countries. Seeq creates cutting-edge data analytics software for industrial process data, serving sectors like pharmaceuticals, energy, and manufacturing. Our core product is a robust calculation engine capable of executing advanced math and machine learning algorithms on streaming time-series data. By leveraging generative AI, we enhance usability and accelerate outcomes for our users. We've built up a great remote culture (e.g. annual meetups, home office allowance, generous PTO, a remote office app we created to collaborate) and a dev team that enjoys tackling hard problems that make a difference for our customers (dev blog for more: https://geeq.seeq.com/). Be sure to mention that you came from Hacker News in your application! Staff Full Stack Software Engineer (JVM, React, Postgres): https://apply.workable.com/seeq/j/CDBF1AE73C/ Staff Frontend Design Systems Engineer (React, Tailwind, UX): https://apply.workable.com/seeq/j/B3E0E9645D/ Staff Software Engineer - Developer Experience (Gradle, Kubernetes, Devex): https://apply.workable.com/seeq/j/A966C8897D/ Staff Software Engineer - Platform (Kubernetes, Terraform, Grafana): https://apply.workable.com/seeq/j/FD4C7FD4F3/

Level 12 | Full Stack Web Developer - Python, JavaScript, SQL | Mid-Level & Senior | REMOTE | SALARY:$95K-145K+ | https://www.level12.io/careers/ Level 12 is a software consulting and custom development agency. We have mid and senior level positions. Our job descriptions are written by developers for developers. No HR fluff here, we want you to know what you are really getting into: https://www.level12.io/careers/ - We have a commitment to transparency and offer a "no surprises experience" throughout the interview and hiring process. We value candor...as evidenced by the length of our job description. :) - Our CEO prefers the title CED, Chief Executive Developer. Engineering and operational concerns don't take a back seat when potential sales come to the front door. - You will be working remote with a team that is all working remote and has been for years. Let's make the best use of our time by not commuting. - We practice and preach sound development practices. You are likely to learn and grow as a developer while working here. - You are committed to automated testing of all the software you write (our apps typically have 92%+ test coverage). - We have a no-drama office policy. We value and cultivate enjoyable working relationships among team members. No jerks allowed! - We emphasize work/life balance and adopt policies that make sure our people don't get burnt out. For instance, our PTO/Vacation policies are designed so that you actually use them. - If you apply, we guarantee that we will give you a response, whether "yay" or "nay". No black holes here! - Hiring status & updates: https://github.com/level12/careers

Emergences Labs (emergences.ai) | AI / Systems Engineer — NeoHuman | REMOTE (US) | Full-time | $120K-$150K + equity | Visa sponsorship available We're a small, research-driven, VC-backed team building NeoHuman: a desktop-first system that observes how people actually use AI tools, files, and workflows during real tasks, and turns those sessions into reliable evaluation evidence. We care about the process, not just the final answer — what someone typed, what they copied, what they verified, how they moved across apps. We've published the AgentIF-OneDay benchmark. Now we're scaling the capture and evaluation infrastructure underneath it. Apply: email jack@emergences.ai with your resume and a brief note about a system you've built — desktop software, AI infra, data pipelines, evaluation, or low-level debugging. Subject: "Your Name — AI / Systems Engineer". Please mention HN in the email. Full JD: https://emergences.ai/careers/ai-engineer

Castleton Tower | Senior Consultant (Data Engineering, Investment Analytics, Strategy) | Hybrid (US) Castleton Tower is a boutique consulting firm founded by executives who have built and led quantitative research, data science, and technology teams at top-tier hedge funds and asset managers. We work with investment management firms (asset allocators, asset managers, hedge funds, family offices, and RIAs) helping them modernize their data infrastructure and build AI-ready foundations. We're looking for smart, motivated, high-agency people with similar backgrounds in either data engineering or investing. We have postings up on job boards, but if you email me a resume and 2 sentences you wrote on why you'd be a good fit, I will guarantee it gets looked at.

Steel.dev | Applied AI Engineer + Infrastructure Engineer | Toronto, ON | ONSITE | $160k-$240k USD base + equity Steel is open-source browser infrastructure for AI agents and apps. We make it easy for developers to ship products that interact with the web - without spending 80% of their time on browser pools, proxies, CAPTCHAs, and session state. In 2025 we grew 50x: 6,000+ GitHub stars, dozens of paying customers, millions of sessions served monthly. Dedicated chromium runs on Firecracker VMs for sub-second cold starts. Stack: TypeScript, React/Next.js, Node.js, AWS, Firecracker, Postgres, Redis. 4+ YOE for both roles. --- Applied AI Engineer --- Shape how AI agents interact with the web. Build open-source frameworks/demos on the Sessions API, run experiments on which models/prompts/harnesses actually work, build evals against real scenarios, and work with customers shipping agents to production. AI-native full-stack engineers with strong product sense. --- Infrastructure Engineer --- Design and operate the systems Steel runs on. Sample projects: VM snapshotting that restores full browser state in under a second, performance-tuning the Sessions API from kernel traces, orchestrating millions of sessions with sub-second cold starts. Distributed-systems experience, strong AWS/GCP and Linux/OS fundamentals. Rust is a plus. Public referral bonus: $10,000 if your intro becomes a hire. Apply: email careers@steel.dev with GitHub & resume, mention HN.

Elucid | Principal Platform Engineer | Boston, MA | ONSITE (hybrid) | $170k–$205k | https://elucid.applytojob.com/apply/BHpChxSggM/Principal-Pla... Elucid builds FDA-cleared AI software that analyzes cardiac CT scans to characterize plaque and predict heart attack and stroke risk. The world's best cardiologists use our output to make treatment decisions for real patients. As such, our platform is regulated as a Software as a Medical Device (SaMD) product by the FDA and we operate under HIPAA, ISO 13485, and ISO 27001. We're hiring a Principal Platform Engineer to own our cloud infrastructure and developer platform: AWS, containers, Terraform, CI/CD, observability, and the self-service tooling that lets our application teams ship quickly inside a regulated SDLC. We are looking for: 7+ years in DevOps/SRE/platform roles, deep AWS, strong IaC, comfort with containers (ECS/Fargate, Kubernetes), and one language you reach for when building tooling (Python, Go, Rust, Ruby, C++). Healthcare or regulated-industry experience is a plus, but not a requirement. On-call is a shared rotation, roughly 2–3 weeks per quarter, business-day coverage only (9am–midnight ET, no overnights). Apply at the link above.

Longshot Systems | Multiple Senior Eng | London, UK, hybrid | Full time Longshot is at the cutting edge of sports betting modelling R&D and has been producing market beating models for a decade. We need senior engineers across platform and strategy. Excellent pay and benefits, flexible hybrid working, office in central London. Very high performance environment with high trust. Team small but growing. Sports knowledge optional, passion and deep technical experience mandatory. Come and join the fun in the new world of sports betting markets. Please check out our recruitment link here: https://apply.workable.com/longshot-systems-ltd/

Revieve | Product Engineer | Remote (Helsinki HQ) | Full-time | Contractor/Vendor Revieve builds AI-powered personalization for 120+ beauty brands across 40+ countries — think skin analysis, AR try-on, and recommendation engines used by some of the world's largest retailers. We're profitable, ~30 people, a dozen engineers, millions of end users. We've reorganized around the idea that one builder with the right tools can do what teams used to. This role exists because we believe that's true. What a week looks like: Mon — a real customer problem lands in front of you, full context, you decide what to build Tue — prototype in Claude Code, something running by EOD Wed — staging up, Loom to founders, iterate on notes Thu — in production, watching real data come in Fri — ship the next iteration or find the next problem ~1–2 hours of meetings per week. No standups. No sprints. No PM in the loop. We're looking for: → Public proof of building — repos, side projects, real users. We click around it. → AI in production — not demos. Opinions on agents, evals, latency, what fails. → Agentic coding fluency — Claude Code, Codex, MCP, custom harnesses → TypeScript / React generalist — comfortable at any layer → Design taste — you know what's wrong with a screen without a designer telling you → Clear written thinking — READMEs, PRs, post-mortems IMPORTANT: include a link to something you've built in your application. Process: recruiter call → paid build session (real problem, you set the pace) → short presentation → done. Perks: 5 weeks vacation from day one, remote-friendly, options plan, equipment budget, parental leave, competitive salary. Apply: https://revieve.factorialhr.com/apply/product-engineer-29989...

Post Up | Full time | Senior Backend Engineer | Onsite | Vancouver, BC (Hybrid) | Salary: $120-$130k CAD | https://www.postup.pro I'm Wilson, co-founder of Post Up. We're building the Databricks for content production. Our orchestration engine coordinates pipelines end to end and turns post-production workflows into a persistent graph of assets and transformations, which are deterministic, verifiable, and nearly instant at scale, powered by a high-performance compute layer. We're building this AI-native from the ground up; ML inference is embedded throughout the pipeline, not bolted on. Stack: On-prem, HPC clusters, distributed storage systems, GPU pipelines, real-time video compute. We're looking for our founding senior backend engineer who wants to work on genuinely challenging infrastructure problems across distributed systems and media processing with immense scale. Should be familiar with Golang, Postgres, Distributed systems, Distributed filesystems (e.g. HDFS, Ceph, etc). Me: https://www.linkedin.com/in/hayswilson/ How to apply: Email me directly at wilson@postup.pro or Submit here: https://www.notion.so/Founding-Senior-Backend-Engineer-31031...

Aerofex | Senior Flight Software Integration Engineer (Ardupilot / Simulink) | Remote / Los Angeles | Contract Aerofex is a rapidly-growing aerospace startup developing next-generation thrust vectoring and VTOL propulsion technology for manned and unmanned platforms. We are seeking an experienced engineer to support the migration of an existing flight-control implementation from a flight-verified Simulink-like development environment into an ArduPilot-based production implementation. This is a 1-2 month contract position, with potential for future full-time work. The primary task is to create a custom ArduPilot airframe configuration for a (slightly) nonstandard vehicle. This work will focus on actuator/output mixing, PWM output expansion, firmware integration, and hardware-level debugging on a Pixhawk-based flight controller. A successful candidate will have worked closely on a similar task and is very familiar with Ardupilot. More details in this doc: https://docs.google.com/document/d/1FAwS8fu59-dUH21dn7kgj0JW... Please apply here: https://forms.gle/JDFAEE6AVmZ5yZej6. Enter the exact text "HN!" in the "How did you find this form?" question.

HelpMyCash | Senior AWS DevOps/SRE contractor | Remote EU/CET | Freelance + paid on-call HelpMyCash is a Barcelona-based financial comparison platform. We're looking for a senior freelance DevOps/SRE to act as the operational safety net for a mature AWS production platform. This is explicitly an insurance role: keep the platform reliable, no major evolution or greenfield work. The platform has run reliably for years (no critical outages unrelated to deploys/changes in 5+ years) — we want someone to keep it that way. Engagement: ~4h/week retainer paid on-call for critical incidents planned/larger tasks quoted separately fully remote, EU/CET, reachable during Spanish business hours Compensation: retainer + hourly rate + on-call premium for out-of-hours response. Exact structure and rates open to discussion based on your model. Work: monitoring, alert triage, routine maintenance, incident response, certificates/security updates, and infrastructure decision-support. No application development or architecture ownership expected. Stack: AWS Elastic Beanstalk, ECS, Lambda, RDS, ElastiCache, Redshift, S3, SQS, CloudFront, WAF, Route 53, IAM, CloudWatch; MongoDB Atlas, Elastic Cloud, n8n, Metabase, Sentry, Bitbucket Pipelines. Looking for someone senior who can handle incidents independently and is comfortable with a stable-platform maintenance/on-call role. Apply: https://uilab-n8n.helpmycash.com/form/devops-application?sou... (full job description linked from the form).

Beautiful.ai | Full-Time | Remote in US & CAN | SaaS B2B Presentation Software | Series B | 16M Funding | AI Industry 1. Account Executive | 140k - 240k USD Base Salary + Uncapped On-Target Commission at 50/50 Split | https://job-boards.greenhouse.io/beautifulai/jobs/4955956007 2. GTM Engineer | $80,000 - $120,000 USD Base Salary | https://job-boards.greenhouse.io/beautifulai/jobs/5055492007

Recover Systems | Founding Engineer | Onsite in Portland, Maine | 130-160k + meaningful equity from first option pool Recover is building the infrastructure for all restoration work, streamlining how remediation contractors run jobs while we handle the red tape and headaches. Recover is a platform born from insurance requirements, financial ledgers, spatial intelligence; built to collapse hundreds of messy painpoints into a single flow. We've just closed our seed round, live desktop and IOS app and are ramping up to convert demo offices to live deployments and rolling out to 50+ waitlisted offices. We're sprinting fast to cover the last features in V1 roadmap including subcontractor portal and insurance disputes workflows and one-click materials marketplace. We're hiring for a specific type of engineer: PM-minded engineer for messy domains. The rare hybrid who can sit across from an insurance adjuster, a franchisee, and a senior estimator in the same day, walk away with the actual workflow in their head, and collapse a scattered process into a single screen the technician actually wants to open. Owns the full loop: stakeholder interview → spec doc → spreadsheet model → prototype → production. Equal parts taste, insight, and stamina. Ships features that flow smoothly and improve how work gets done. Apply here if interested: https://www.recover.systems/careers

Stream | Amsterdam (NL), Skopje (North Macedonia)| Remote possible | Full Time | Visa Sponsorship We power real-time Chat, Video, Activity Feeds, and AI Moderation for apps like Strava, Bumble, eBay, and Patreon - billions of API requests per month, millions of concurrent users. We're looking for a hands-on Lead Engineer (Staff / Principal level) to own Platform & Infrastructure. Reports directly to the CTO. Small, senior team - you'll write code most of the time, not run a process org. First 6 months focus on three things with measurable outcomes: * Cloud cost optimization (AWS/GCP) — tooling and guardrails, not reports * Platform reliability and scalability — SLOs, observability, hardening * Architecture decisions on Kubernetes, databases, and cloud provider strategy Stack: Go, Python, AWS, GCP, Kubernetes, PostgreSQL, CockroachDB, Redis, Terraform. Looking for: software engineering background (Go or Python, not scripting-only), production cloud cost optimization experience, real distributed systems depth, and active AI tooling use in your engineering workflow. Not a fit if: you're security/compliance-heavy, scripting-only, or dependent on large-org support structures. Full JD + apply here: https://jobs.ashbyhq.com/stream/cbabbb5d-0e34-486b-acf7-ce40...

Fold | Remote (US Only) | Senior Back End Engineer | Full-time Fold is a publicly listed bitcoin financial services company building the tools people need to earn, buy, sell and live on Bitcoin. We're looking for a Senior BE Engineer to help build the financial infrastructure behind our products - payment processing, ledger systems, card transaction flows and event-driven pipelines. - 5+ years software engineering experience - Strong in: Java or similar (Kotlin, Scala, C#) - Experience with: production microservices, distributed systems - Familiar with: messaging/event streaming (Kafka, Pulsar) - Solid relational database and data modeling skills - Nice-to-have: fintech, payments, ledger/accounting domains - Nice-to-have: event-driven architectures, CQRS, event sourcing - Nice-to-have: Micronaut, Quarkus or similar modern Java frameworks - US residency (regulatory requirement) Benefits: - Competitive salary + equity - 401k with 3% match - Unlimited PTO + yearly vacation stipend - Full health/dental/vision - Paid parental leave - Regular team meetups - Bitcoin starter pack (hw wallet included) Email tiffany.sawhney (a) foldapp.com if you have questions or apply here: https://ats.rippling.com/fold-inc/jobs/514ba20e-a93e-4960-ad... [0] https://foldapp.com

Instinct Science (https://instinct.vet) | Multiple Roles | REMOTE (US) | Full-time We're the AI platform for veterinary medicine — cloud-native EMR, AI scribing (ScribbleVet, acquired early 2026), clinical decision support, and Plumb's drug reference. Instinct is the operating system vet teams run their day on, from charting through clinical decisions to pharmacy. Real revenue, real PMF, scaling fast. - Senior Full-Stack Engineer | $150–175k Elixir (+ Ash) / Postgres / TypeScript / React / AWS. Own features end-to-end. https://instinctscience.applytojob.com/apply/1H156iuuzg - Senior Software Engineer, React Native | $150–175k Embedded in ScribbleVet. Mobile app vets use during live appointments — audio capture, offline, AI-assisted clinical workflows. Expo + GraphQL. https://instinctscience.applytojob.com/apply/4Yj4DavJ6D - Product Manager | $120–150k Translate vet workflows into roadmap. 3+ yrs PM in early-stage SaaS. https://instinctscience.applytojob.com/apply/uU7QfJpdSf Fully remote (US) but not async. Equity, full benefits, 401k match, annual retreat. Reach out to vinnydidonato at instinct.vet with [HN] in the subject. Thanks!

Senior Python Backend Engineer | REMOTE (EMEA/APAC) We’re looking for Python backend engineers to work on a trustless supercluster of performance-proofed GPU-enabled sandboxed docker container runners controlled by truly decentralized algorithms (not just PAXOS or RAFT). Wow, that was a mouthful... If you found it interesting, join Reef Technologies and tackle complex technical challenges like this on your own terms: - Contribute from wherever you like, we are fully remote - Set your own time commitment, as long as it’s at least 30h per week - See how we work in our handbook: github.com/reef-technologies/handbook - Influence the way we operate through our Sociocracy 3.0 decision-making process Salary on a B2B contract: - 45-70 USD or 180-280 PLN per hour - Flexible work schedule (as measured with a time tracker) - We automatically adjust rates based on inflation twice a year We're looking for someone with 5+ years of programming experience, including at least a year with Python (including opensource and significant personal projects). So, what do you think? You don't even need a CV; just go to https://careers.reef.pl/?utm_source=hackernews and shoot a few quick commands to apply. Contact: hiring@reef.pl Web: https://reef-technologies.com/

Lago (YCS21) | Hiring for Multiple roles in Product and Engineering across EUROPE and USA (https://jobs.ashbyhq.com/lago) Lago is the leading open-source billing platform for usage-based pricing. We power billing for companies like PayPal, CoreWeave, Mistral AI, and Synthesia — handling real-time metering, hybrid pricing models, credit wallets, and multi-entity invoicing. We raised $22M (Series A led by FirstMark, seed backed by Y Combinator) and are growing fast across AI/ML, developer infrastructure, and enterprise segments. - Infrastructure Engineer (Europe) - https://jobs.ashbyhq.com/lago/7f42566e-f778-4925-bd7e-745fc9... - Product Engineer (Europe) - https://jobs.ashbyhq.com/lago/bc48913d-6ae7-4a56-b427-af9213... - Product Engineer (Growth focused / USA OR Europe)- https://jobs.ashbyhq.com/lago/638af98e-061c-4f8b-adf0-ec2331... Apply through the links - looking forward to hearing from you!

Sphinx Defense | Software Engineering | Remote (US Only) | https://www.sphinxdefense.com Sphinx Defense builds software to solve complex national security problems for America and its allies. Founded by engineers and technologists with deep experience across commercial and defense technology, we're building a vehicle-agnostic communication infrastructure to enable satellite operators to securely utilize antenna networks and maneuver satellites in real-time. We're bootstrapped, profitable, and growing aggressively. To learn more about who we are, our engineering culture, and whether this is the right place for you, https://sphinxdefense.com/ Our current openings are: Senior DevOps Engineer - Colorado Springs, CO: https://grnh.se/9ufr3c4s8us Don’t see a role that aligns with your interests or don’t have the specific Space/ Command & Control experience? Apply to the general interest application and list what type of role you would be interested in : https://grnh.se/4ce199d68us

*Labor Solutions (YC-style) | Senior Software Engineer | Remote (India) | Full-time* We run a worker wellbeing and compliance platform used by global buyers and their supply chain sites across Asia. We're in the middle of a meaningful migration and platform buildout — you'd be joining at a point where architectural decisions matter and your fingerprints will be on the system for years. *The work:* Our stack is Django + Python on the backend, dbt for data transformation, React/Next.js on web, and Expo/React Native for mobile. We run on AWS and Azure. Right now we're migrating legacy services while simultaneously shipping new features — so you'll need to be comfortable holding both in your head. *What we're looking for:* - Strong Python/Django chops — you've built and maintained production APIs, not just tutorials - Comfortable with React/Next.js; bonus if you've touched Expo or React Native - You understand what a data pipeline actually does (dbt experience a plus, but SQL fluency matters more) - Cloud experience on AWS or Azure — not ops, but enough to not be blocked - You care about code quality without being precious about it *What this isn't:* This isn't a greenfield startup with infinite runway. It's a real product with real users, real technical debt, and a migration in progress. If that sounds like a problem, this role isn't for you. If that sounds like the most interesting kind of work, let's talk. *Details:* - Fully remote, India-based - Senior Software Engineer title Apply: abhishek dot baddi at laborsolutions dot tech | mention HN in the subject

SalesJack | Solutions Engineer | Toronto, ON, Canada | HYBRID | FULL-TIME SalesJack is a sales software platform (CRM, Prospecting Service) for independent businesses in the construction supply industry. We are growing quickly and profitably. Our engineering team is growing in Canada. As a Solutions Engineer at SalesJack, you'll own the technical side of bringing new customers live and keeping them successful. Every implementation involves ERP integration, product category mapping, permit source configuration, data migration, and on-site training — and you'll be the person who makes all of that happen. Post-launch, you'll handle customizations: new reports, routing rules, data transformations, and one-off integrations. You'll work closely with founders, engineers, and the dealers using our product every day. We highly value a startup mentality—taking initiative, moving quickly, and iterating solutions based on real customer feedback. We are looking for: - 2+ years in a Solutions Engineering, Implementation Engineering, Data Engineering, or similarly hands-on technical customer-facing role - Strong SQL — comfortable writing non-trivial queries against Snowflake, Postgres, or similar warehouses - Comfort with REST APIs, auth flows, pagination, rate limits, and debugging flaky endpoints - Familiarity with (or strong interest in) construction supply ERPs such as BisTrack, DMSi Agility, or ECI Spruce - Some travel may be required to customer sites in the US Our hiring process will be: 1. Initial call with our founding team to briefly discuss your background and introduce SalesJack ~30mins 2. Technical Exercise: SQL, integration design, and a customer scenario walkthrough ~1.5 hours 3. Cultural fit call with one of our founders ~30mins 4. Offer Apply here and mention Hacker News: https://jobs.ashbyhq.com/salesjack/6feafb61-3049-4d76-ab84-1...

Happy Returns | Engineering Manager | Remote, USA | Full-time Happy Returns is solving one of e-commerce’s biggest pain points: returns. We combine proprietary returns software with reverse logistics, including box-free consolidated returns, to make returns better for shoppers, retailers, and the planet. We’re a UPS company, growing quickly, and our shopper experience has a 93 NPS. We’re hiring an Engineering Manager to lead a team of 6–8 engineers. You’ll manage day-to-day execution, coach and mentor engineers, improve team productivity and agile processes, partner closely with Product, participate in architecture and technical design reviews, and help recruit and onboard new engineers. You may be a fit if you have: * 6+ years developing and testing web applications * 2+ years as an Engineering Manager * Strong written and verbal communication skills * Experience coaching engineers toward high-quality, maintainable, well-tested code * Comfort collaborating closely with Product, DevOps, QA, and other stakeholders Bonus points for experience with Go, Python, React, PostgreSQL/MySQL/MongoDB, Docker, Kubernetes, AWS, e-commerce, logistics, or sustainability. Remote role open to candidates in the United States. Must be authorized to work in the U.S.; we are unable to offer sponsorship at this time. Apply: https://www.linkedin.com/jobs/view/engineering-manager-remot...

Company: This Dot Labs Location: REMOTE (US) Role: Senior Frontend Engineers Experience: 7+ years We’re growing the team at This Dot Labs and hiring 6–8 senior engineers. We’re looking for engineers with deep frontend experience who are already thinking about AI as a core part of how software gets built today, not as a side experiment. This is for engineering leads, architects, and senior engineers with 7+ years of experience who care about strong systems, good judgment, and building software that lasts. Please email your resume to: jobs@thisdot.co

PermitFlow (YC W22) | Staff, Fullstack & Frontend Software Engineers | New York, NY | ONSITE | Full-time | https://permitflow.com PermitFlow’s mission is to streamline and simplify construction permitting in the $1.6 trillion United States construction market. Our software reduces time to permit, supporting permitting end-to-end including permit research, application preparation, submission, and monitoring. We recently raised a $54M Series B led by Accel with participation from Kleiner Perkins, Felicis, Altos Ventures, and YC. Permitting is a challenging yet interesting problem; thousands of municipalities across the United States have their own processes and requirements - many which are continually updating. Software, AI, and LLMs provide an exciting opportunity for us to reason at scale and distill a nuanced and localized permitting process into a standard and streamlined experience for our customers. We're looking for customer-obsessed, ambitious, and hard-working teammates who are excited about solving a real-world problem with technology at its helm. NYC Onsite Roles | apply at: https://jobs.ashbyhq.com/permitflow?departmentId=d33195eb-89... 1. Staff Software Engineer - $200K-275K + equity 2. Fullstack Software Engineer - $125-245K + equity 3. Senior Frontend Engineer - $125K-245K + equity https://permitflow.com/hiring

Holepuch|Remote, Worldwide|Senior Node.js Software Engineer At Holepunch, we are redefining the internet’s architecture. Our open-source P2P platform, Pear, enables developers to deploy applications directly from their machine to users, creating scalable, decentralized applications without traditional server infrastructure. We are seeking Node.js Software Engineers to join our 100% remote, globally distributed team. You’ll work on our P2P stack, which includes over 1500 public npm modules, and help expand our ecosystem. Why Holepunch? - Work on groundbreaking technology that prioritizes user autonomy and privacy. - Collaborate with a team of thinkers and innovators dedicated to reshaping the digital landscape. - Contribute to a future where technology serves humanity, not the other way around. Apply now to join our mission: https://holepunch.recruitee.com/o/p2p-nodejs-engineer?source... https://holepunch.recruitee.com/o/senior-node-engineer?sourc...

Gridmatic | Product engineer + data engineer | 175-235k + equity | Cupertino, CA (hybrid) Hi HN! We’re an energy + AI startup that applies modern deep learning and optimization to improve the use of renewables and grid-scale batteries to deliver cheap, clean energy to commercial/industrial customers. We also do energy trading and battery optimization. Roles: - Data engineer: we're hiring our first data eng! Looking for a startup-minded SWE to work on both ingest and transformation of datasets that power our best-in-class ML models for energy forecasting. - Product engineer: our energy sales have been growing rapidly and we want to 10x it from here, which involves building a lot of tooling to make sales more automated. This tends to be backend/data heavy, but will also have some frontend (NextJS/React/Typescript). If you're interested in making a real-world impact on climate/energy, or if you know someone that might, please email me and include a one sentence description of the most impressive thing you've built: kevin@gridmatic.com

Better Stack | https://betterstack.com/ | /^Full-?stack Engineer$/i | Remote (North America & Europe) We are software builders at :heart: CEO is a software engineer, COO is a software engineer, and you guessed it, CTO is an engineer, too. We are engineers, making the tools we always wanted. If you love building amazing software, you're at the right address. We are looking for software engineers who, given enough time, could build Better Stack on their own = looking for full-stack product engineer generalists to help us create high-quality software with exceptional UX, end-to-end. Apply at https://betterstack.com/careers/fullstack-engineer How we operate: https://betterstack.com/careers – https://betterstack.com/careers/engineering – https://juraj.blog/

ThreatMark | Security, Machine Learning | REMOTE(World) / Brno, Czech Republic | Equity ThreatMark protects >50M end users from finacial fraud and saves > $100M every year in losses. We are working with top banks in EU and US to protect their end users. We develop large-behavioral models that recognizes returning users by their mouse movements, keystroke timings and sensoric data (accelerometer, gyroscope). We detect cyberthreats (e.g. malware, phishing, scraping) by exploiting browsers/sandboxes of devices. We manage ~PB scale of data and provide realtime scoring in milliseconds driving authentication/authorization flow (2nd factor). Stack: [python, typescript, rust], [redis, postgresql], [aws, terraform] ... We are looking for exceptional engineers to build with us and be part of the success: - Backend Engineer [rust, python] - low-latency stream processing engine, rewrite python microservices to rust, build new detection features - DevOps Engineer (IaaC in AWS) If you are interested, please email us @ career@threatmark.com with subject "HN Who's Hiring" If you don't find the right role here or at https://www.threatmark.com/careers/, write us anyway if you believe you can be good fit :) Krystof Hilar, Co-Founder & CTO

Oxidian | https://www.oxidian.com | Remote (EU only) We're doing to government software what challenger banks did to banking. We build critical systems for scientists and researchers, making sure public money is well invested. Our work involves high-performance Python for petabyte-scale Earth Observation and satellite datasets, clean web UIs for complex data, and modern DevOps pipelines to automate scientific workflows. Small team, fast-moving. Trust and autonomy from day one. No bureaucracy, just hard problems and impact. We're hiring mid and senior Python Developers with 3+ years of experience. Send your CV and a couple of paragraphs on why you're interested to careers@oxidian.com with the role in the subject line.

Prophet Town LLC | Various Software Engineering Roles | US – Remote and Hybrid | English fluency required | Full-time | $150K-$260K annual total comp (multiple) We are a people-first, boutique tech agency creating on-demand teams and software solutions for long-standing clients, who trust us to practice engineering excellence as though we were members of their own staff. Our leadership team is ex-Fortune 100, with software engineering backgrounds and who are still coding. Notable recent projects include internal tools for Anduril, and the original buildout (both auction site and operations infrastructure) of Voltage Park. This is a remote-first agency, but some projects involve onsite work. I’m the founder and CEO, and I’m trying to do what I call “enlightened business”. I take responsibility for both staff and clients, and I look for people who approach their work with a similar sense of ownership. Applicants must meet a high bar - I personally review every hire. In return you’ll get: * Flexibility and a low-bureaucracy environment * Clients that won’t treat the vendor like “the B Team” * The chance to act as a code architect, not just implement tickets * Exposure to a wide variety of industries and modern challenges * Me as your personal champion and advocate Feel free to submit, even if you already did in the past. We’re currently especially seeking: Back-end, Front-end, and Full-Stack Software Engineers, Tiers 3 and 4 (Typescript/Javascript, React, NextJS; Ruby on Rails; Python; DevOps, and third-party API integrations) Our Tier 3 ("mid-tier") roles are typically 5-10 years experience with $150-$180K total annual comp. Our Tier 4 ("senior") roles are 11-20 years experience, $215-$260K total annual comp. (Higher tiers exist, and we always welcome exceptional applications.) Though not yet universal, many of our clients are now demanding senior/staff engineers with success using modern agentic approaches. Be ready to explain where current models work well and where they do not. Please apply using this Google Form: https://forms.gle/7yv5jhybsGRNDx3o9

Microsoft | Azure Deployments & Bicep Team | Senior Software Engineer | REMOTE (US-based only) The Azure Deployments & Bicep team aims to make deploying resources to Azure simple, safe, predictable, and reliable. We own the backend services powering Azure deployments, Bicep DSL, and various other services aimed at helping customers be successful with Infrastructure as Code. We are at the heart of the Azure Resource Manager control plane with great opportunities for cross-team collaboration and impact, have a lot of autonomy to shape the direction of our own products, and enjoy having a hands-on approach with customers to help drive our feature design. We're looking for a Senior Software Engineer to help maintain and build automation around our Azure Verified Modules offering in the short-term, but with the long-term goal of transitioning to work across all our core products. You will act as a lead for new features and functionality, as well as providing mentorship to junior colleagues. We're not looking for any specific language experience, but are looking for demonstrable leadership, mentoring and collaboration skills. This role is only open to candidates with US work authorization. Apply here, and please reach out to me (antmarti@microsoft.com) with your resume to let me know you've applied: https://apply.careers.microsoft.com/careers/job/197039355686...

Matcha | REMOTE (Europe / UK / Canada / US) | Full-time | https://matcha.fm Repeat founder building something new and putting together a founding team. This for high ownership, ideally for people with prior startup experience or previous founder / founding team: Full-Stack / Frontend / AI Engineer — https://matcha.fm/apply/fse Backend Engineer — https://matcha.fm/apply/be Design — https://matcha.fm/apply/design Product — https://matcha.fm/apply/product Growth / GTM / Marketing — https://matcha.fm/apply/marketing Sales — https://matcha.fm/apply/sales

Flow Traders | Research Engineer | Hong Kong/ London (onsite) | Full Time | Visa | Relocation Flow Traders is a leading proprietary trading firm with an entrepreneurial and innovative Tech culture at the heart of its business. We are looking for Research Engineers in our Hong Kong office. Join us build and scale the research framework behind our systematic trading models. You’ll work closely with Quantitative Researchers, drive end‑to‑end ML pipelines, and shape global standards for data‑driven model development. Research Engineers have joint responsibility for conducting research and delivering models. You’ll thrive if you have: - 8+ years in ML / Data Science / Research Engineering (Postdoc/Faculty can count towards this); - Strong Python and libraries such as Ray, numpy, PyTorch, and pandas; - Solid math/stats background; - Experience with modern dev practices & cloud technologies. If you're interested, apply here: https://lnkd.in/dWhh_m28 Or if you'd like to see other roles at Flow Traders, please check our careers website: https://flowtraders.com/careers/

Join (https://join.build) | Staff Software Engineer | Remote | $175K–$205K + equity Join builds collaboration software for the construction industry — helping contractors, owners, and architects coordinate on high-value projects. React, Golang, Postgres. We deploy to AWS via Terraform. We're hiring multiple staff engineers across a range of profiles: frontend-heavy, fullstack, and backend-heavy. We're especially looking for 1–2 engineers with architect-level frontend chops (React, TypeScript, state management, perf) who can own UI quality and level up the team. But we're also very interested in strong Go/Postgres or infra/ops backgrounds. Day to day you'll write code (25–75%), review PRs (25–50%), and pair/mentor/document (10–20%). You'll act as a technical lead on projects, break down large efforts, and influence architectural decisions across the org. Small cross-functional teams with a designer, PM, and EM. Stack: React, TypeScript, Golang, Postgres, GraphQL/Apollo, Vite, Cypress, Terraform, AWS (ECS, RDS, Lambda). We lightly use Elastic and are interested in event-driven patterns. Fully remote, 100% employer-paid medical, 401(k), two company-wide shutdown weeks, continuing education budget. To apply: send resume to jon@join.build. If you are able to please include a PR review you've given that had a positive impact (or a description/snippet if that's confidential).

By turning legal code into AI code, Norm enables enterprises to move faster and more comprehensively in their legal and compliance processes with reliability and trust. Norm Ai, the leading Legal & Compliance AI company, has a client base with a combined $30 trillion in assets under management. Norm’s platform combines frontier AI, proprietary legal reasoning systems, and embedded legal and regulatory expertise. We have recently raised more than $140 million, backed by Blackstone, Bain Capital, Vanguard, Citi, New York Life, TIAA, Coatue, Craft Ventures, Henry R. Kravis (KKR co-founder), and Marc Benioff (Salesforce CEO). Norm Ai pioneered Legal Engineering, the process that empowers lawyers to build and supervise domain-specific AI agents with Norm’s proprietary suite of no-code software tools. We hired dozens of lawyers from premier U.S. law firms and trained them as Legal Engineers, who specialize in Large Language Model powered legal workflows. Norm Ai technology is deployed inside many of the largest and most consequential institutions in the world. The company is growing quickly and hiring in NYC across all teams, including: - Full Stack Engineer, Senior + Staff ($190k-280k) - Engineering Manager ($235k-280k) - Applied AI Engineer ($220k-285k) - Forward Deployed Engineer ($145k-250k) We're also hiring for many non-technical roles. These roles are hybrid/in-person in NYC. The best way to apply is online on our website (we review every application!). Full list here: https://jobs.ashbyhq.com/norm-ai?utm_source=7ow8wN5o3g.

Amodo Design (https://amododesign.com/) | Sheffield, UK | Software Engineer | Onsite or Hybrid We are hiring software engineers who enjoy solving important real-world problems and working close to hardware; who learn new domains quickly and prefer practical solutions over over-engineered systems or unnecessary complexity. You’ll work on the projects best suited for you. Projects range widely, and include: - Scientific tools - Automation & robotics (Linux & ROS level) - Embedded C/C++ (typically owned by dedicated firmware engineers, but software engineers are welcome to learn!) - Linux, CUDA, Server engineering for our AI safety, security, and verification work - Custom simulation software (usually python) - Data analysis pipelines (python) - Organisational tooling (Typescript, react, postgres, etc.) Structure: Small teams of software, mechanical, electronics, and firmware engineers build end-to-end systems, typically shipping within a few months. Apply: https://amododesign.com/career

Walmart Global Tech (International Digital Experiences) | Frontend Software Engineer | Sunnyvale, CA (Onsite) What you’ll do - Build modern, scalable UIs with React, modular CSS, Redux, React Query, and GraphQL - Improve and refactor existing codebases with a focus on simplicity and performance - Partner closely with product, design, and UX to create intuitive customer experiences - Own features end-to-end and ship to large-scale production daily - Share knowledge and contribute to a strong engineering culture What we’re looking for 2+ years of software development experience. Experience building responsive SPAs with React (or similar frameworks). Solid understanding of JavaScript, React, and Node.js fundamentals. Experience with REST APIs (building or consuming). Curiosity, product sense, and a bias toward shipping Nice to have Exposure to GraphQL, Next.js, Nx, or modern frontend tooling Details - Location: Sunnyvale, CA (onsite only) - Visa: No sponsorship available Email: gaurav.sharma0@walmart.com - please mention HN in your email

Maiven | Full-Stack Engineer, UX/UI Designer, Energy Modeling Engineer | REMOTE (US) | Full-Time At Maiven Energy, we're working on real-world problems at the intersection of responsible AI and residential energy. Our aim is to make energy upgrades smarter, faster, and more accessible, while helping reduce carbon emissions. We're a small, mission-driven team punching way above our weight: we have large utility customers, contracts in multiple states, and a growing pipeline of programs launching later this year. We're venture backed and moving fast. We're hiring for three positions (US only): - Full-Stack Engineer – NestJS, React, Tailwind, TypeScript, Node, Postgres, AWS, Lambdas. [1] - Energy Modeling Engineer – Python, pandas, AWS, modeling frameworks (ResStock, OpenStudio, etc.). Experience with energy programs or building science is a huge plus. [2] - UX/UI Designer [no link] Looking for builders who want real ownership, thrive in early-stage startups, and move with urgency and care. More: https://www.askmaiven.com To apply: email hiring _at_ askmaiven.com. Generic, AI generated cover letters and resumes are discouraged. [1] https://climatebase.org/job/69488877/fullstack-engineer [2] https://climatebase.org/job/69488878/energy-modeling-enginee...

Unit | Senior & Staff Engineers | San Francisco | Full-time | On-site Unit is building an AI agentic video platform for personalized marketing videos. We have strong traction with enterprise customers and are hiring Senior and Staff Engineers to help build the core platform across agent architecture, AI video/image workflows, media infrastructure, customer data ingestion, enterprise integrations, publishing systems, and feedback loops from real marketing outcomes. Our team comes from Instagram, TikTok, NVIDIA, Roblox, Airbnb, and Robinhood. We're backed by Khosla Ventures, Air Street Capital, and angels from top AI labs. Roles: - Backend: https://www.unit.inc/careers/software-engineer-backend - Fullstack: https://www.unit.inc/careers/software-engineer-full-stack - ML Infra: https://www.unit.inc/careers/software-engineer-ml-infra Reach out directly: careers [at] unit.inc

Turquoise| Platform Operations Engineers| Remote, USA Turquoise a series C healthtech company is recruiting for two platform engineers to join the newly created platform operations team. You can expect to work closely with our Data Engineering team based in Europe, drive observability, define the metrics for reliability and help to share our platform infrastructure. Click on one of the following links best aligned with your exp to apply: Platform Operations Engineer-https://jobs.ashbyhq.com/turquoise-health/f4bcb7df-4e4b-468d... Senior Platform Operations Engineer-https://jobs.ashbyhq.com/turquoise-health/f6a6e00f-c383-4f3e...

CoPlane (https://coplane.com/) | Product Engineer | NYC (preferred) or Remote (North America) | Full Time The world doesn't need another ERP. CoPlane is building the Agentic Orchestration platform that enables enterprises to orchestrate intelligent processes across their existing systems. Founded by ex-Stripe/Segment product and tech leads, we're changing how businesses operate their backoffice - helping them scale intelligence not headcount. We're looking for an exceptional product engineer to grow our small team of engineers that include ex-founders, open source contributors (authors of neovim and neverthrow), and architects of petabyte-scale data platforms. We are looking for someone that wants to own product features end to end (Python + Typescript/React) but is particularly spiky on frontend and UI. You'll build a platform for billion-dollar enterprises solving their hardest, most mission-critical automation problems. If you're excited about working at the nexus of data, automation and AI, and want to make a significant impact in an early, well-capitalized startup with large enterprise design partners, we'd love to hear from you. Roles: Product Engineer. For more info and to apply: https://coplane.com/careers

OneChronos | Systems Engineers | NYC (HQ) | Flexible and (U.S.) Remote Work | Full-Time We’re looking for software engineers to design and optimize high-performance trading systems that power our periodic auction matching infrastructure. We build production systems in Rust and are looking for engineers with meaningful Rust, C++ or Java experience, particularly out of backend or systems-oriented environments. This is a systems programming role focused on low-latency, high-throughput distributed computing. You’ll work across order and data workflows, auction execution, reliability, and performance optimization to ensure the platform is efficient, fault-tolerant, and capable of complex trade matching at scale. We’re especially interested in engineers who: Have built backend or systems-level software Are passionate about performance, concurrency, and correctness Are motivated by real-time, performance-sensitive systems Have experience with compilers, static analysis, or language tooling (a strong plus) ESTIMATED COMPENSATION: Salary range: $150,000-$220,000 with eligibility for a discretionary annual bonus. CONTACT: careers@onechronos.com - and please send your resume and include “Systems Engineer | HN” in the subject line.

Stellar Science | Hybrid (USA) Albuquerque NM, Washington DC (Tysons VA), Dayton OH | Full time, interns/co-ops | U.S. citizenship required | https://www.stellarscience.com Company: We're a small scientific software development company that develops custom scientific and engineering analysis applications in domains including: space situational awareness (monitoring the locations, health and status of on-orbit satellites), image simulation, high power microwave systems, modeling and simulation, laser systems modeling, AI/ML including physics-informed neural networks (PINN), human body thermoregulation, computer vision and image processing, high performance computing (HPC), computer aided design (CAD), and more. All exciting applications and no CRUD. We emphasize high quality code and lightweight processes that free software engineers to be productive. Experience: Except for interns, we currently require a Bachelors degree in physics, engineering, math, computer science, or a related field. Masters or PhD is a plus. (Roughly 25% of our staff have PhDs.) Technologies: Lots of C++23, Qt 6.9, CMake, git, OpenGL, CUDA, Boost, Jenkins. Windows and Linux, msvc/gcc/clang/clangcl. AI/ML and analysis projects use Python and C++. Web projects use Java and Typescript/React. Apply online: at https://www.stellarscience.com/careers/.

Campus | Software Engineers, Product Managers & Data Scientists | Hybrid in NYC Campus is a Series B Edtech startup with a mission to maximize access to a world class education backed by investors such as General Catalyst, Founders Fund, Bloomberg Beta and 8VC. We’re hiring technical talent across levels and functions to build tech that modernizes education - please apply to any that you may be a fit for! Senior Staff AI Research Engineer: https://bit.ly/49A6IGs Staff Data Scientist: https://bit.ly/48OOMYz Staff Fullstack Software Engineer: https://bit.ly/4eUt4Gv Senior Product Manager: https://bit.ly/4wyDd1U

Ashby | YC 19 | REMOTE | Hiring Product Engineers | Sr: $153k-$220k, Staff: $190k-$275k Ashby is the all-in-one recruiting platform powering hiring at the world’s most innovative companies. If you cmd+f “Ashby” you’ll see that we’re powering many of job postings in this thread! * Grew our engineering team from 30 -> 60 last year with plans to double again in 2026. * 80%+ of our engineering team is made up of Senior-Staff+ level Product Engineers. We give an unusual amount of ownership to our engineers to build features end-to-end. Many of our most loved features were build entirely by a single engineer! * 100% remote asynchronous culture with an even distribution of engineers across North America and Europe * Full transparency on engineering levels + comp: https://www.ashbyhq.com/blog/engineering/leveling-and-compen... Stack: TypeScript (frontend & backend), React, GraphQL API, Node.js, Postgres, Redis. Full list of open roles: https://www.ashbyhq.com/careers

Sheer Health (https://www.sheerhealth.com) | New York, NY | Full-Time | ONSITE If you or a loved one has ever suffered from confusing/egregious medical bills or insurance communications, this is your chance to give the power back to others in a similar situation. Our mission is to demystify health insurance, healthcare and medical billing. By utilizing cutting-edge technology and advanced data analytics, we deliver personalized recommendations on how to save money, maximize use of plan benefits, stay on top of reimbursements and avoid erroneous or inflated medical bills. Currently open roles: - Backend Engineer, https://jobs.ashbyhq.com/sheerhealth/cfa1d5d1-80b2-4588-b418... - Automation Engineer, https://jobs.ashbyhq.com/sheerhealth/ccd28cff-eac8-4970-beb4... - Strategy & Operations Manager, https://jobs.ashbyhq.com/sheerhealth/3354321f-78f4-414a-adbe...

Yassi|Senior Fullstack Engineer (Golang, Node.js/React, AWS) 3 days in-office Chicago YASSI provides real-time access to vehicle title, lien, and registration data directly from U.S. state motor vehicle agencies. Unlike traditional bulk data providers, YASSI retrieves each vehicle record live at the time of request, ensuring the most accurate and current information available. YASSI is the only provider offering an enterprise-grade solution purpose-built for real-time vehicle data at national scale. In addition, YASSI is uniquely positioned as the only platform that combines real-time vehicle record access with digital repossession title processing, enabling lenders to verify lien status and complete repo titling workflows within a single, integrated solution. We’re rethinking how vehicle data, titling, and compliance infrastructure works— bringing real-time connectivity and transparency to an industry that’s long overdue for modernization. We are already profitable 6 years in. That is unique for a start-up. Actively building out our engineering team in downtown Chicago and we are open to senior/staff level. Job description here: Sr. Full-stack Engineer - https://apply.workable.com/yassi/j/60C534A983/ Email at: patti -dot- lopez - at - yassi - com

G-Research | London, UK | On-site | https://www.gresearch.com/ We’re a quantitative research and technology firm bringing together world-class researchers and engineers to tackle complex problems in financial markets. Our engineers play a central role, building the systems and platforms that turn research into production and enable large-scale experimentation. If you’re interested in working with near-infinite compute, advanced technology and a team that values curiosity, take a look at some of our open roles in Technology: - Performance Engineering Manager: https://www.gresearch.com/vacancies/performance-engineering-... - ML Performance Engineer: https://www.gresearch.com/vacancies/machine-learning-perform... - Quant Developer: https://www.gresearch.com/vacancies/quantitative-developer/ - Machine Learning Engineer: https://www.gresearch.com/vacancies/machine-learning-enginee... - Production Software Engineer: https://www.gresearch.com/vacancies/production-software-engi...

Cogram (YC W22, https://cogram.com) | Multiple Roles | Remote or hybrid (US/EU/UK) | Full-time Cogram builds AI agents for architects and engineers. Our tools automate project management and streamline CAD/BIM for leading firms around the world. We have engaged customers using our products day-to-day on real projects and are growing fast. We're hiring across GTM and Product/Engineering: · Growth Lead / GTM engineer and early-stage marketers: technically strong and excellent writers. · Designers that code, PMs that have strong design skills, or design-savvy engineers · Account Executives: based in US East/Central or UK. At least two years of exceeding targets in software sales. · Builders and former founders: strong at talking to users, understanding requirements, and shipping features end-to-end. For all roles please see: https://www.ycombinator.com/companies/cogram/jobs We offer: · Work directly with customers using our tools daily on architecture, engineering, and construction projects. · Build differentiated products with real traction at the intersection of software, the physical world, and design. · A deeply focused, high-caliber team. If you’re applying for a GTM role (GTM Engineer or AE), email alex - at - cogram - dot - com with subject: Cogram GTM Application 0526 We’d love to hear from you.

ML6 | Machine Learning Engineer, Data Engineer | Python, TensorFlow, PyTorch, GCP, AWS, Azure | Full-time | Amsterdam, Berlin, Munich, Eindhoven, Ghent (EU) On-site/hybrid We are a Machine Learning consulting company that builds end-to-end Machine Learning solutions. By applying the latest AI research, we keep our clients at the forefront of innovation. If you are interested check out: https://www.ml6.eu/knowledge-hub/blog and https://www.ml6.eu/customers/cases Work on innovative projects for the biggest clients across Europe such as Randstad, ASML, FUNKE, and many more! Whether it’s about leveraging LLMs to improve customer support, building data lakes on cloud platforms to improve storage or implementing models using sensor data for quality control. You can find it all at ML6. You will mostly work with Python and a range of ML frameworks such as TensorFlow, PyTorch, or HuggingFace Transformers to solve hard Machine Learning tasks and help bring these application into production by building data pipelines and cloud infrastructure on all of the major cloud providers (GCP, AWS, Azure). Open roles include: • Senior/medior AI Engineer • Senior AI Project Manager • Chief Product Owner and many more! Apply now at the https://jobs.ml6.eu/

Adobe | Forward Deployment Engineering (AI/ML)| SJ| Hybrid | Full-Time Location: San Jose, CA (Hybrid/Onsite). As a Forward Deployed Engineer, you’ll act as a technical ambassador for Adobe—splitting your time between: •Hands-on engineering (building AI-powered systems, APIs, and integrations) •Direct collaboration with customer engineering teams The Stack: •Languages: Python, Java, Scala •ML/AI Frameworks: PyTorch, TensorFlow, JAX •LLM Systems: RAG pipelines, agents, prompt orchestration, evaluation frameworks •Cloud & DevOps: AWS, GCP, Azure, Docker, CI/CD, Git •MLOps / LLMOps: Evaluation pipelines, prompt/version management, feature flags, canary releases What we’re looking for: We’re looking for a senior engineer (9+ years) with hands-on AI/ML and LLM experience who takes a build-first approach. You bring strong Python and cloud skills, experience with APIs, data analysis, and observability, and can take systems from prototype to production. You understand modern AI architectures (RAG, agents, evaluation), have a track record of shipping and iterating in real-world environments, and can turn data into action. You’re also a strong communicator who can work directly with customers, guide implementations, and drive measurable impact. Comp: $208,300 - $301,600 base + Equity + Adobe’s notoriously good benefits. How to Apply: Email me directly at skatkar@adobe.com with "HN: [Your Name]" in the subject line. Official Link: https://careers.adobe.com/us/en/job/ADOBUSR163356EXTERNALENU...

Ria Money Transfer | https://www.riamoneytransfer.com/en-us/ | Hybrid Denver, CO | Full-time Currently looking for a AI-first full time product engineer to help us on a transform our digital product! Looking for someone with backend experience that is interested in having more product ownership. This is a super exciting time to join and you will have a ton of ownership over what you build! Feel free to reach out directly, send me some cool projects you've built!: https://www.linkedin.com/in/chbigelow * Product Engineer, Backend: https://www.linkedin.com/jobs/view/4383274196/?trackingId=mz...

Gladly | Remote (US) | Staff Software Engineer, AI & Automation | $60k–$215k + Equity | https://www.gladly.ai/careers Gladly is at the forefront of building retail customer service AI. Our AI is live in production with customer-centric brands like Crate & Barrel, Sephora, and REI. We have the ingredients that make AI work: rich data, close customer partnerships, and a strong engineering culture. We're hiring Senior & Staff Software Engineers to lead major AI & Automation initiatives. This is a high-impact, hands-on role for someone who wants to ship fast, collaborate deeply, and build systems that help real people. You should have: - 5-10+ years of full-stack experience (Go, TypeScript, React, Postgres a plus) - Experience with generative AI, multi-agent systems, RAG pipelines (can be personal projects / side projects) - A bias toward impact and product thinking - Excellent collaboration and communication skills Bonus: Entrepreneurial or other leadership experience. We're a remote-first company with competitive pay, meaningful equity, and a focus on doing real work with great people. Learn more + apply: https://www.gladly.ai/careers Or reach out directly: gerad@gladly.a

Stellar | Amsterdam, the Netherlands | Onsite (2 days remote OK) | €70-100k + equity | https://stellarcs.ai Hey, I'm one of Stellar's founders. We're building AI for large contact centers, our primary product is voice. Contact centers are the last place where companies actually talk to their customers. We listen to calls every week and it's fascinating. AI here helps real people: shorter wait times, 24/7 support, lower cost. We’ve helped companies go from 60 to 98% pickup rate in weeks. We’ve had (human) agents asking us to accelerate our roll out plan because the days with Stellar are so much better than the days without. We’re all builders. Everybody in our company still writes code. We have one role open: We are looking for implementation leads that love working with clients. FDEs welcome as well. This role is perfect if you: * Want massive ownership at a small team * Actually enjoy solving hard problems (real-time audio at enterprise scale) * Think making AI sound human in niche dialects is a fun challenge Find the full vacancies here: https://www.stellarcs.ai/careers EU work authorization is required. No visa sponsorship available. Apply: e-mail is in my profile, please indicate HN in your e-mail.

Brandfetch (https://brandfetch.com) | Senior Backend Engineer | Remote | Full-time Brandfetch is the internet’s canonical source for logos and brand assets. Think GitHub for brand identity: a brand repo that auto-indexes public assets, lets brand owners “commit” changes once, then propagates them—instantly and immutably—through CDNs, plugins, and APIs used by companies like Google, Canva, Salesforce, and soon … everywhere. Problems you'd work on: - Nightly curation bot auto-fixing outdated assets across 52M+ repos - Next-gen ingestion and partition-key schema to leap from millions to billions of assets - MCP server that exposes structured brand data to any AI agent or LLM, letting them fetch brand context on demand - Vector search: surface any logo with ≥90% similarity in <50ms - Real-time metering that pings Stripe the instant a user tops their quota Stack: Node.js, TypeScript, Python, AWS (Lambda, DynamoDB, CloudFront, S3, CloudFormation), Serverless. You: - 8+ years of experience in backend software development. - Proficiency with AWS tools (Cloudformation, API Gateway, DynamoDB, Lambda, Cloudfront, S3, IAM, OpenSearch). - Experience with building REST APIs. - Ability to write well-documented, clean code. - Experience with building DevOps pipelines using Serverless. - Great communication skills (we work across multiple timezones and document everything). - Experience with Machine Learning. - Timezone: UTC+0 to UTC+9 Competitive salary + equity in a profitable, growing company. apply: career at brandfetch.io (no recruiter please).

Zenskar | Bengaluru, India (Hybrid – 2 days/week in-office) | Senior Backend Engineer Zenskar is an AI-native revenue automation platform built to handle real-world complexity. We raised $15M in Series A funding in April 2026, led by Susquehanna Venture Capital, Bessemer Venture Partners, Shine Capital, and Rho, with participation from Rocketship, J-Ventures, Future Back Ventures by Bain & Company, and Converge. We’re hiring a Senior Backend Engineer to design and build core platform systems where correctness and reliability are non-negotiable. You’ll work on distributed systems, enterprise integrations, and APIs that power zero-touch finance operations at scale. Looking for engineers with 5–7 years of experience building production backend systems, strong system design instincts, and comfort operating in high-scale, high-complexity environments. Tech: backend systems, distributed architecture, APIs, AWS, event-driven systems Apply: https://evolve.keka.com/careers/applyjob/36861 Or email: nitya@zenskar.com For more openings: https://zenskar.notion.site/careers-zenskar#29c40c1b83f180e9...

Acrylic Robotics | ML Lead | Montreal, QC | Onsite/Hybrid | Full-time Acrylic Robotics is a creative tech company focused on changing how people design and create art. We build software that learns a person's taste in art, ML design tools that turn it into a concept, and robots that create the concept with paint on canvas, so original artwork can be commissioned at a price most people can actually afford. We're hiring an ML lead to own the model side. The system has to take a user's intent and references, turn them into concepts the user can refine through feedback, and produce the brushwork-level instructions our robots paint. This would be the first dedicated ML hire on the team; they'll help set the technical direction, ship the first real end-to-end version, and build out the team behind them. We're based in Montreal, QC, but open to a hybrid position for the right person. Please email me at walker@acrylicrobotics.ca or look at https://acrylicrobotics.ca for more info. Thanks! - Walker, Head of Engineering

Yardstik | Staff Software Engineer | Minneapolis, MN (hybrid) | $160,000 - $220,000 Yardstik is a start-up software company with a mission of building trust and safety into the Internet Economy. The world of background screening, certification, and training has lacked innovation and we’re here to change that for our customers. Our enterprise-class technology allows us to provide a right-fit solution for our customers realistic for any platform, in any industry. Join us in our efforts to protect organizations and their people. This position will be part of a team focused on Yardstik's core background check business. The team's mission is to push beyond existing products and features to create a new category for Yardstik. You are the right candidate if you are an experienced engineer with a passion for writing quality software who strives to remain up to date with the latest development practices and are ready and eager to hit the ground running in a collaborative environment. Apply at https://app.trinethire.com/companies/135023-yardstik/jobs/11... and continue to watch our careers page as we are growing!

Burnin (London or NYC) | Founding Research Scientist + Founding Engineering Lead | Hybrid (Some on-site) | Full-time We are building the trust stack for AI code generation, targeted at high-stakes computing where wrong numbers cost real money: a statically typed functional language designed for coding models, a compiler whose guarantees double as audit-grade trust infrastructure, and a coding model fine-tuned on the language with compiler fitness as the training signal. Language and model are co-designed. Small team out of PyTorch, FAIR, and Meta. Strong institutional VC support from our pre-seed; active investor interest heading into seed. Founding Research Scientist: own the agenda across the language and the model. Type system design, compiler analyses that produce useful fitness gradients, and fine-tuning open-weight coding models on a language with no pretraining footprint. Publish in PL and ML venues. Strongest fits cross between machine learning, programming languages, and formal methods. PhD preferred, equivalent output equally fine. Stack is Rust, Lean 4, Python. Founding Engineering Lead: own engineering across compiler internals, language runtime, GPU backends, notebook and library tooling, and the AI infrastructure around training, evaluation, model release, and likely public inference. We already support x86 and ARM, CUDA and AMD, macOS and Linux, and the matrix grows. Real feel for statically typed functional programming expected; the kind of engineer who picks up Lean or Haskell on a weekend because they wanted to. Have led engineering before, formally or not. Stack is mostly Rust with Python where it earns its place, primarily on AWS. Both roles: comfortable with early-stage ambiguity, define your own roadmap, defend it with evidence. Apply: RS: https://wellfound.com/l/2Carrr Eng Lead: https://wellfound.com/l/2CewDC Socials: YT: https://www.youtube.com/channel/UC4DLS_emqwKXO7A9qaOtxlw SS: https://burninai.substack.com/

Hive (S14) (www.hive.co) | Engineering roles | Remote within Canada + USA | Full-time We power marketing for 1,500+ live event brands across North America — festivals, venues, promoters, tours. 40M+ emails and SMS a month, billions of customer data points, real-time integrations with Ticketmaster, Eventbrite, Shopify, and 20+ others. We’re hiring across a many of our pods: Senior Backend Engineer, Platform & Services (7+ yrs) Own the core services and data pipelines everything else is built on — high-throughput ingestion, real-time integrations, the foundation under 200M+ messages a month. https://jobs.ashbyhq.com/hive.co/538c47f9-d008-49b7-b0d4-583... Senior Product Software Developer, Frontend / Fullstack (3+ yrs) Ship customer-facing features end-to-end. https://jobs.ashbyhq.com/hive.co/19c52872-49b4-4095-b0d6-e75... Engineering Manager, Platform & Services (3+ yrs managing · 5+ yrs hands-on) Lead our platform, infrastructure, and integration pods. Coach the team, set the bar, and help shape engineering-wide direction as part of the eng leadership team. https://jobs.ashbyhq.com/hive.co/cc0790ff-b693-4e3f-8dba-31d... Senior Software Engineer, Data (7+ yrs) Design and own a cloud-native big data platform handling audience data for millions of attendees and billions of interactions a year. This is one of our newest pods- you’ll be part of the founding team. https://jobs.ashbyhq.com/hive.co/fbb8b4ac-6f8e-450c-b9a3-bf5...

Gen-Alpha Transistor | Member of Technical Staff (Silicon FDE) | Full-Time | Hybrid (San Francisco Bay Area) | https://generation-alpha-transistor.com/ Generation Alpha Transistor (Gen-Alpha) is a San Francisco based start-up, building AI tools for chip designers. It's a space that’s gaining enormous momentum as demand for AI silicon keeps growing. We’re looking for a Silicon Forward Deployed Engineer to join our rapidly growing team—an expert circuit designer who thrives at the intersection of deep technical work and real-world application. You’ll work side-by-side with customers, helping shape how advanced circuit design evolves in the AI era, and translating cutting-edge capabilities into tangible impact across their workflows. We are a small, highly technical team composed of PhD graduates from Berkeley, MIT, and Carnegie Mellon, with deep experience from companies like Apple, Amazon, Synopsys, and Cadence. If you are interested, please send your resume along with you some upcoming availability to henry@gen-alpha.io. If there is a potential fit, I can help get a call set up with you and one of our founding team members to talk more about the opportunity!

Zero Motorcycles | Engineering Manager (Firmware), Software Engineer (Cloud) | Scotts Valley, CA (Hybrid) | https://zeromotorcycles.com/ We build electric motorcycles. Our bikes work well on their own today. We’re building a connected system across the bike, cloud, and field tools so we can see how they behave in the real world, understand what changes actually do, and use that to decide what’s worth building. That means owning behavior end-to-end, from firmware on the bike to the systems that observe and update it, and making sure it is reliable and secure in the real world. We’re hiring for: I. Firmware Engineering Manager (Products & Systems) https://zeromotorcycles.recruitee.com/o/firmware-engineering... II. Software Engineer, Cloud Platform https://zeromotorcycles.recruitee.com/o/software-engineer-ii... If this sounds interesting, apply or reach out.

TrakPro | Senior Rails Engineer | REMOTE (overlap with Ireland 9–5 GMT) | €48–60k/yr We're a construction payment management SaaS based in Ireland. Main contractors and subcontractors use us to track subcontracts, payment applications, and retentions — replacing the spreadsheets they currently rely on. Small team of 5 (3 in engineering), customers in Ireland and the UK. We're hiring our 3rd engineer. You'd own features end-to-end alongside our two existing engineers. Async-first, fully remote, real product ownership. What we want: - 5+ years shipping Rails in production - Daily Claude Code or Codex user with a real workflow, your own skills/hooks/commands, opinions on when to override the agent, habit of reviewing AI output as critically as a junior PR - Strong written English, calm under customer-facing pressure Stack: Rails 8, Hotwire (Turbo + Stimulus), Postgres, RSpec, AWS, GitHub Actions Apply: product-hiring@trak-pro.com please share your resume and a one paragraph note on your AI workflow (tools, skills, hooks, or commands you've built). https://trak-pro.com

Two Six Technologies | Technical Lead, Principal, and Senior Principal Vulnerability Researcher | Arlington, VA | ONSITE | Full Time | https://job-boards.greenhouse.io/twosixtechnologies/jobs/589... Two Six Technologies is seeking highly experienced Technical Leads, Principals, and Senior Principal Vulnerability Researchers to drive our in-depth reverse engineering and exploit development efforts. In these advanced roles, you will own the technical direction of critical projects and transition research findings into operational capabilities. We are looking for elite embedded security researchers to tackle complex challenges in firmware and hardware reverse engineering, as well as Linux/UNIX kernel development. You should have a strong track record of technical leadership or principal-level contributions, along with a preference for an active TS clearance and the ability to obtain SCI at a minimum. If you are interested in pushing the boundaries of vulnerability research and embedded security, please apply via the link above or reach out directly to our team at recruiting@twosixtech.com.

Preferred Networks | Tokyo or Remote in Japan | Full-time | https://www.preferred.jp/en Preferred Networks is an AI company based in Tokyo working across the stack, from AI chips and computing infrastructure to LLMs and products. You may already know us indirectly if you've used software we've built, such as Optuna or CuPy (or Chainer, back in the day). We are designing in-house chips (MN-Core series: https://mn-core.com/) and training LLMs (PLaMo series: https://huggingface.co/pfnet), and our team is actively hiring for two roles related to these endeavors: - MN-Core LLM Serving Engine Engineer: Build software infrastructure to serve LLMs using our upcoming inference accelerator, MN-Core L1000. [Apply here: https://open.talentio.com/r/1/c/preferred/pages/121580] - LLM Inference Optimization Engineer: Improve the inference engine powering our API service and maintain PLaMo implementations in open source projects such as vLLM. [Apply here: https://open.talentio.com/r/1/c/preferred/pages/119173] Both roles require relocation to Japan. We are happy to provide visa and relocation support.

Transfyr | Full Stack Software Engineer | Cambridge, MA | Full-time | ONSITE Transfyr is building physical AI for science, and the world’s largest commercial dataset on real-world scientific execution. We are looking for a full stack engineer who can work at the hardware/software interface, to integrate our AI and data into tools that solve real customer problems. Our stack spans backend services, data pipelines, and user-facing interfaces. We are looking for strong full-stack programming skills and a track record of shipping real software systems that get used, maintained, and evolved. We particularly value experience designing, building, and maintaining data intensive or backend systems, particularly with high-volumes of multimodal data (e.g. live streaming videos or games or robotics perception). We value strong fundamentals, curiosity, and the ability to learn quickly over familiarity with specific tools. If you're interested, apply here! https://transfyr.ai/join-us

Eve | Founding Engineer | San Francisco, CA | https://www.helloeve.co/ Company: We are building an executive voice engine (Eve). This is a multi-agent AI system that learns how a leader thinks and produces content indistinguishable from what they'd write. Think: a specialized vertical AI solution that uses coordinated specialized agents, persistent context graphs, a learning flywheel that compounds with every piece. We have paying customers and a growing agency channel, mostly word of mouth. Role: Full AI stack + product. Agent orchestration, evals, RAG, prompt chaining, model trade-offs, and customer-facing features. TypeScript, SvelteKit, Cloudflare Workers, Postgres. You: Full-stack in the real sense (AI systems + infra + product). At least five years experience shipping code into production systems including production AI. Move fast, care deeply, and be curious. Culture: We are a team of four. The founder is technical and moving to spend more time in growing the business. Architecture is early enough that your decisions define the system. Apply: Send an email to hello [at] helloeve.co. Use the subject line: My voice is {fill in your description}. In the body, include your favorite piece of content you've published and why it matters to have your voice out there. Please also share links to your portfolio and anything that shows how you think about AI systems, e.g. an eval harness, a multi-agent project, a write-up, a side project, and most importantly, why you + why you want to be part of the team.

Beacon AI | San Carlos, CA | Hybrid (On-Site) | Full-Time | www.beaconai.co Beacon AI builds intelligent systems that make aviation safer and more autonomous. We’ve completed multiple DoD programs and are expanding our team with exceptional technical leaders to push the boundaries of human-machine collaboration in the cockpit. At Beacon, you will lead by example, mentoring and growing a small team of talented engineers (typically 1–2 to start) while staying hands-on in design and execution. You’ll help shape critical systems that advance aviation safety and autonomy, working alongside a team that values effort, creativity, and accountability. We’re hiring Lead Engineers with 5-9 YOE who love solving complex problems. At Beacon, you’ll own your work end-to-end, from prototype to deployment, and literally see your code take flight in real world aviation environments! Roles: ++ iOS Engineer [Tech Stack: Swift, SwiftUI, UIKit, Mapbox] ++ Senior Security Engineer [SIEM, IDS/IPS, vulnerability scanning, encryption] ++ Infra/Backend Engineer [Tech Stack: AWS] ++ WebApp/FrontEnd Engineer [Tech Stack: Python, Typescript, React] ++ Lead Autonomy/Robotics Engineer [Tech Stack: C++, Python, iOT] Join us at beaconai.co/careers. Mention in the application that you saw our post on HN.

FeedbackPulse | HR/PeopleOps Specialist | Remote (SEA-based) | Full-time | https://feedbackpulse.com Mission: Build better culture & growth systems for companies that don’t have them. Then make them stick. Role: Somewhere between product, customer success, and HR consulting. You won’t “manage HR internally.” You will operate as an embedded advisor across multiple companies, helping them design, run, and improve their people programs using our platform and AI tooling. Company: We’re a SaaS company in the employee engagement space. Our customers are Heads of People, HRBPs, and founders who want to run better 360 reviews, engagement surveys, and feedback systems-but don’t have the time or expertise to do it properly. FeedbackPulse makes employee engagement simple with tools for creating meaningful surveys, gathering staff feedback, and building better workplace culture. Our platform offers engagement surveys, performance reviews, and 360° feedback solutions that help companies address high turnover rates and disengaged workforces. You: HR/PeopleOps experience, using AI tools like Claude Cowork daily, clear writing skills, self-directed, and results-oriented. Our culture: Direct communication, focused deep work, clear work-life boundaries, and sustainable growth as a bootstrapped company. Mention you are from HN in your application message. Sounds interesting? Apply here: https://feedbackpulse.com/hr-specialist-with-ai-skills-remot...

Octozi | Founding Engineer | NYC (Hybrid) | Full-time | https://www.octozi.com/ Octozi is a revenue-generating seed-stage company building AI agents for clinical development workflows. Bringing a drug to market can take a decade and cost up to $2B, keeping treatments expensive and delaying life-saving therapies for the patients who need them. We're cutting the cost and time of these workflows while improving the science and analysis of clinical data. We already have commercial contracts with multiple pharma companies and are scaling the team to meet demand. The interesting problems span agent orchestration over messy clinical datasets, human-in-the-loop review at scale, and turning unstructured medical reasoning into auditable, regulator-ready output. Looking for a full-stack engineer to join as a founding hire with startup experience strongly preferred. Stack: Python, TypeScript, AWS, PyTorch. Reach out to careers [at] octozi.com and mention HN. Full description: https://wellfound.com/recruit/jobs/4163102

BIT Capital | Principal Engineer (Data & Platform) | Berlin, Germany | ONSITE (2 days/week) | Full-time Looking for experienced engineers to build and scale infrastructure and data platforms for a Berlin asset management fund. We are betting big on AI to drive investment returns and build the best infrastructure to support our high alpha targets (track record >30% p.a. since inception; https://bitcap.com/en/bit-global-technology-opportunities-ai...). You'll design large-scale data pipelines, evolve our lakehouse architecture, strengthen data quality and observability, and build infrastructure for AI/LLM workflows (agentic scaffolding, RAG, LLMOps, AI for engineering). We are looking for a hands-on technical leader, that is steering initiatives end-to-end while staying deep in implementation. We have our roots in tech entrepreneurship (Jan Beckers), and this mindset still dominates our work culture, even as a regulated financial institution. We are a team of ~40 with a flat hierarchy, hands-on leadership, fast-paced decisions, and a little nerdy culture as people are actually passionate about their work. Stack: AWS, Databricks/Spark, Python, PostgreSQL, Agentic AI. If the complexity of financial markets excites you as much as the complexity of distributed systems, you'll love it here. Competitive comp, relocation & visa support, stellar team. Apply at: https://bitcap.jobs.personio.com/job/1833794

Railtown AI | Head of Developer Relations | REMOTE (North America preferred) / Vancouver, BC | Full-time | $130k-$180k + equity | https://railtown.ai/careers/head-of-developer-relations Railtown AI is building a unified platform for modern AI-powered software development. Our products span developer productivity engineering, backend infrastructure for agent and app development, a Python framework for production-ready agents, and structured evaluation workflows for responsible AI deployment. We're looking for a Head of Developer Relations to help make Railtown AI the default stack for building, observing, and evaluating AI agents. You'll own the developer narrative across Conductr, Railengine, Railtracks, and Agent Evaluations, then turn that story into adoption through technical content, demos, docs, community programs, open source growth, and direct feedback loops with product and engineering. Good fit if you've spent 5+ years in developer advocacy, DevRel, technical product marketing, or a similar developer-facing role; have scaled a developer platform or technical audience; understand AI tooling, agents, and observability; and can write code, demo live, and communicate clearly with both developers and executives. Benefits include health coverage, equity, flexible time off, paid parental leave, annual company retreat, and WFH equipment stipend. To apply: https://railtown.ai/careers/head-of-developer-relations

Findigs | Full-time | NYC | 3x/week in office (M,T, Th) | findigs.com At Findigs, we’re transforming the rental experience — making it fairer, stress-free, and more convenient by changing the fundamentals of renting. We build high-scale applications that streamline renting for millions. Our modern tech stack includes Python, Typescript, Node.js, React, and scalable cloud infrastructure. We foster a collaborative culture where engineers have high ownership and autonomy, taking features from concept to deployment. Join our sharp, supportive, and mission-driven team in our newly renovated SoHo/NoHo office. Open roles: Lead Software Engineer (https://jobs.lever.co/findigs/1ea92751-1c85-4eb6-84b4-86c529...) Senior Software Engineer (https://jobs.lever.co/findigs/3b39616d-223f-4326-a500-f804c3...) Mid-Level Software Engineer (https://jobs.lever.co/findigs/5e865781-244f-4e4f-b7bd-e09973...) Competitive Base Salary plus Pre-IPO Equity 401k Matching up to 4% Unlimited PTO Lunch in office every day, home office setup stipend, monthly gym stipend

MongoDB | Senior+ Developer Advocate | REMOTE (Europe + Remote, USA) | Full Time My team is hiring for multiple openings for Senior+ Developer Advocate roles. We aren't just doing "content." My team is the technical "tip of the spear" for MongoDB’s largest global accounts. - The Scale: You’ll be solving data architecture and performance bottlenecks at a scale very few engineers ever get to see. - The Impact: It’s incredibly rewarding to optimize systems for household-name companies and see the immediate ripple effect. - The Culture: You’ll join a tight-knit group of MongoDB experts who actually enjoy collaborating. - The Mix: This is a high-engagement role. There are multiple open positions: For significant travel to work face-to-face with devs, balanced with deep-dive technical work. Apply at https://www.mongodb.com/careers/jobs/7241758 (Europe) For mostly remote, apply at https://www.mongodb.com/careers/jobs/7495485 (Europe) https://www.mongodb.com/careers/jobs/7571308 (USA) If you have 5+ years of experience in consulting/SA/DevRel and want to bypass the recruiter screen, contact Hubert directly: https://www.linkedin.com/in/hubertnguyen/

Coalition Security | Principal Software Engineer | REMOTE (US) | Full-time | https://coalitioninc.com Hey there, I'm Jake, Co-Founder & CTO of https://wirespeed.co. Following our acquisition by Coalition, we're expanding our engineering leadership team to support our crazy growth. We're looking for a principal-level backend engineer to own the core of our platform. You'll have end-to-end ownership of high-impact integrations (EDR, identity providers, SIEMs), detection & event processing pipelines, technical direction, and serve as a force multiplier for the team. What we're looking for: - Deep backend/distributed systems experience (TypeScript/Node.js preferred) - Experience as a founding engineer or in highly autonomous roles - Solid grasp of at least one: EDR, IAM, SIEM, or detection engineering - Track record of leading architecture and mentoring senior engineers Full remote, 100% medical/dental/vision, flexible PTO. Apply: https://www.coalitioninc.com/job-posting/4675147005

Opendate | Senior Full Stack Engineer (Ruby on Rails) | REMOTE (US only) | Full-time | https://www.opendate.io/careers/senior-full-stack-software-e... Opendate is the operating system for live music venues — booking, ticketing, marketing, and settlement, all in one place. We replace the tangle of spreadsheets, holds-and-confirms email chains, and ticketing platforms that independent venues, promoters, and festivals have been duct-taping together for decades. Customers range from 200-cap clubs to multi-day festivals. We're a Rails shop with real backend problems: multi-tenant ticketing at on-sale scale, financial settlements that have to reconcile to the penny, and integrations with the rest of the music industry's plumbing (Stripe, Dwolla, Seats.io, Twilio, SendGrid). If you like systems where correctness actually matters and the users are people you can go meet at a show, you'll fit in. Stack: Rails, React/Redux, PostgreSQL, Redis, BigQuery, AWS, GCP, Docker, Terraform. Flutter on mobile. AI-first engineering culture — Cursor, Claude Code, and Copilot are part of the daily workflow, not banned from it. 100% remote within the US (no sponsorship), with optional Indianapolis or Chicago offices if you want them. Looking for 5+ years of senior full-stack experience, comfortable owning projects end-to-end and shipping to production weekly. Apply: https://www.opendate.io/careers/senior-full-stack-software-e...

Dablam | BDR engineer | Remote or on-site in NYC or London, UK| full-time or part-time Dablam is a reputation management company that works with top companies to shape their communication, product stories and their impact in the real world. We work with product companies, brands and campaigns for product launches. We're looking to hire an senior developer specialized in BDR and top of the funnel outreach automation through etl pipelines, openclaw, AI agents, clay and pure software engineering. ML and data science are required as we seek to detect signal in very noisy datasets. We generate our own leads today. We seek to employ an engineer that can own the pipeline stability and the results it produces. This is an engineering role. Experience in lead-gen matters but it's not mandatory. * 2-4 years experience in software development; * Typescript, javascript, python, bash, linux; * familiarity with AI agents, ML and scikit-learn; Reach out to me directly with your CV and victor that works at dablam.co.uk.

SmarterDx | 150-250k+ + equity + benefits | Remote (US only) | Multiple roles | https://smarterdx.com/careers SmarterDx builds clinical AI for one of healthcare’s most broken systems: how hospitals get paid for the care they actually deliver. Our physician-designed clinical AI platform reviews the clinical record, understands the nuance of patient care, and helps hospitals capture appropriate reimbursement across the revenue cycle. The core problem is hard: messy clinical data, complex regulations, payer rules, medical reasoning, and real financial stakes. When we get it right, hospitals recover millions in earned revenue, reduce manual review burden, and keep clinical and revenue teams focused on higher-value work. We’ve hit serious scale while keeping the team unusually strong and technical: MD/data scientist hybrids, Stanford LLM researchers, former Google and Amazon engineers, former ASF board member, and others who are among the best in their fields. Many teammates have been here since we bootstrapped to $1M+ in contracted revenue before raising capital. In 2025, SmarterDx became part of Smarter Technologies through a $1.1B deal with New Mountain Capital, reaching unicorn status while continuing to operate with the autonomy, urgency, and product velocity that got us here. Before that, we raised $71M from Floodgate, Transformation Capital, and Bessemer, including a $50M Series B. We have real product-market fit: 85+ health systems, 300+ hospital sites, rapid customer growth, and 150% YoY headcount growth (currently at ~500). Now we’re scaling the platform. We have PMF, and it's time to scale! For more and to apply, see https://smarterdx.com/careers

Column (https://column.com/) | San Francisco, CA (ONSITE) | Full Time | Software Eng (Infrastructure), Software Eng (Backend), Software Eng (Product) Column is building the infrastructure that powers the US dollar globally. We're a software first company, but also own a nationally chartered bank that we've built from the ground up. We're currently processing trillions of dollars annually, supporting some of the largest and most sophisticated companies out there like Wise, Bilt, Brex, Ramp, Mercury and dozens of others. Previous to this I started Plaid (plaid.com), and at Column I'm focused on keeping an extremely lean and experienced team. We're currently 10 experienced engineers that all report to me. We are looking for an ambitious infrastructure, product, and backend engineer (one of each) that wants to build incredible software from first principles. Profitable and 100% owned by employees and founders. Apply here: https://column.com/careers Feel free to email me with any questions: william@

KeyMe Locksmiths | IT Support, Linux / MacOS / Windows | Remote | key.me Fully automated self-service key duplicating kiosks can be found in over 7,000+ locations across the country in major retailers such as WalMart, Kroger, 7-Eleven, Menards, and many others. We're hiring an IT Support / Sysadmin to help manage and automate the laptops our employees use day to day, and also expand into helping my team automate the 7000+ kiosks we manage in the field. Linux, Windows, MacOS, SaltStack, Docker, AWS, with Terraform and Kubernetes. Reach out to tim.mahoney@key.me and mention "IT Support Sysadmin" in the subject.

Tech Mahindra | Full-time, all levels | India, USA, Canada, Mexico | techmahindra.com Tech Mahindra’s Cloud Advisory division is hiring engineers and technical leaders to help enterprises modernize and operate at scale on AWS, Azure, and GCP. We value folks with a strong software development background who have grown into cloud and platform engineering roles. Our work spans cloud migration, platform engineering, DevOps/SRE, IaC, DevSecOps, and FinOps. Any experience with using AI to improve cloud platforms, DevOps or operations is a plus. We’re hiring across all levels and geographies (India, Mexico, Canada, USA). Roles include: Cloud Engineers, Platform/DevOps/SRE, Cloud Architects, DevSecOps, Tech Leads, and Engineering Managers. Apply: Send your resume or LinkedIn profile to cprabala@techmahindra.com (mention HN – Cloud Advisory).

Sumble is the newco from the founders of Kaggle. We are hiring full stack engineers, ai/ml engineers and growth/marketing. Can view our roles and apply here: https://sumble-inc.workable.com/ We are building a knowledge graph from web data with a first focus on data for go-to-market teams. We use web data to identify things like org structure, tech stack, and key projects (e.g., GenAI initiatives, cloud migrations). Our product already has strong product-market fit, early revenue, and happy customers — and now we’re ready to accelerate. Our long-term vision is to become the world's best data vendor. Try the product at sumble.com. We are a team of 25 with experience at companies such as Google, Meta, Stack Overflow, Rippling, Snowflake, Confluent and Kaggle. We raised $38.5MM from Coatue, Canaan, Square Peg Capital https://techcrunch.com/2025/10/22/sumble-emerges-from-stealt...

UpMetrics | Full Stack Software Engineer | Hybrid (Sacramento, CA) | Full Time | $145k-$170k UpMetrics provides an impact reporting platform and expert services designed to help mission-driven organizations and funders leverage data to accelerate social change. By combining innovative technology with community building, we empower partners to collect insights, secure capital, and share compelling stories to achieve their goals. We’re looking for a Full Stack Engineer to join our mission-driven team and help build the technology that powers social impact. This role is primarily remote with occasional meetups in Sacramento with our Director of Engineering. Stack: Ruby (flexible if you know Python), JavaScript/TypeScript, Vue (or React, Svelte) Looking for: 6+ YOE, startup experience Check out the full job description & apply here: https://jobs.lever.co/UpMetrics/62b78791-e881-44c7-bf21-c82b... (Applicants must be authorized to work in the United States. UpMetrics is unable to sponsor or take over sponsorship of employment visas at this time.)

Yuzu Health (yuzu.health, Series A) | Location: New York City (Flatiron) | ONSITE Pitch: Yuzu is not a wrapper, point solution, or integration on top of something. Our platform makes it easy for anyone to create their own health plan from scratch. That means our tech handles everything from the member/HR portals, claims adjudication, invoice automation, member support tools, to even printing and sending out ID cards. Why: We're rebuilding health insurance from the ground up. We currently serve over 1,000 employers, and we're growing extremely fast (like over 10x last year fast)! Investors: We're well funded with investors like General Catalyst, Chemistry, Anthropic, Lachy Groom, Neo and founders from startups you know like Notion, Brex, Deel, and Mercury. Roles: We're hiring engineers for in-person work over here at Yuzu's HQ in Chelsea, NYC. Primary need is for Fullstack/Product Engineers but we're also looking for a Data Engineer, a Backend Engineer and a Product Designer. Job board here - https://yuzu.health/careers You can check out our old office in our MTV cribs office tour (we just moved to a bigger space so need to do a new one) - https://www.linkedin.com/feed/update/urn:li:activity:7398820... Here's a little blog post we put out recently also: https://yuzu.health/blog/series-a I'm Kev, the recruiting lead. Reach out to me directly if interested on kev ( at ) yuzu ( dot ) health

Zippy is a fintech company rethinking how people buy one of the most overlooked forms of housing in the U.S.—manufactured homes. Instead of the slow, fragmented, paperwork-heavy mortgage process, Zippy has built a fully digital, end-to-end lending platform that makes getting a home loan fast, simple, and actually user-friendly. What makes it interesting for an engineer: you’re not just building CRUD apps - you’re owning complex, multi-system infrastructure that touches lending, underwriting, compliance, and customer experience, all in a space that’s historically underserved and inefficient. At its core, Zippy is using software to unlock access to affordable housing—turning a broken, manual financial process into a scalable, tech-driven product that directly impacts people’s ability to become homeowners. We’re currently hiring Senior II and Staff Engineers with experience in functional programming languages. These positions are REMOTE but we are hiring in the following states ONLY: Arizona, Connecticut, Florida, Georgia, Illinois, Indiana, Louisiana, Maryland, Michigan, Missouri, Montana, Nebraska, Nevada, New York, North Carolina, Ohio, Oklahoma, Oregon, Pennsylvania, South Carolina, South Dakota, Tennessee, Texas, Utah, and Wisconsin. For more information and to apply: Senior II: https://jobs.ashbyhq.com/zippymh/a720568e-be37-45bb-bd96-040... Staff: https://jobs.ashbyhq.com/zippymh/1406c9b6-318e-4307-a8d6-b52...

SerpApi | https://serpapi.com | Junior to Senior Fullstack Engineer multiple positions | Customer Success Engineer | Hiring Coordinator | Python/Ruby/PHP/Js/Rust/Cotlin/C#/Crystal/Nim/Elixir Developer Advocate positions | Based in Austin, TX but remote-first structure | Full-time | ONSITE or FULLY REMOTE | $150K - 180K a year 1099 for US or local avg + 20% for outside the US SerpApi is the leading API to scrape and parse search engine results. We provide 100+ APIs to Google, Google Maps, Google Images, Bing, Baidu, and more. Our current stack is Ruby, Rails, MongoDB, and React.JS. We are looking for more Junior and Senior FullStack Engineers. We have an awesome work environment: We are a remote first company (before Covid!). We do continuous integration, continuous deployments, code reviews, code pairings, profit sharing, and most of communication is async via GitHub. We value super strongly transparency, do open books, have a public roadmap, and contribute to the EFF. Apply at: https://serpapi.com/careers

FusionAuth | Senior Java Engineer, Account Executive, Solutions Engineer | Varies between REMOTE (in USA, also in Europe but only for the account exec/solutions engineer positions) and ONSITE in Denver, CO, USA, details in each job desc | Salary ranges for the Senior Java Engineer it is 140k-180k, but the Euro positions don't have them :( At FusionAuth, our mission is to make authentication and authorization simple and secure for every developer building web and mobile applications. We want devs to stop worrying about auth and focus on building something awesome. There are a lot of companies in the auth space, but we feel like we have something special: * a relatively unique deployment model (self-host on-prem, run in your cloud or let us operate it for you in ours) * A well designed API first approach; one customer compared our APIs to petrichor * a mature product (the code base is nine+ years old and we've found and fixed a lot of the sharp edges around core login use cases; but don't worry, there are plenty more features to add) * our CTO is the founder and still writes code * a full featured free-as-in-beer version which makes the sales cycle easier; prospects often come in having prototyped an integration Our core software is commercial. We open source much of our supporting infrastructure. Technologies and standards that you will work with: modern Java, PostgreSQL, Docker, Kubernetes, MySQL, OAuth, SAML, OIDC. Learn more, including benefits and salaries, and apply here: https://fusionauth.io/careers/ ( Click/tap the 'View open positions' orange button. )

MintMCP | Founding Engineer / Founding GTM | SF Bay Area (ONSITE) MintMCP helps enterprises safely roll out agents to the entire organization (e.g, governance around MCP tools and agents like Claude Code / Codex / Cowork). We're building an MCP gateway with abstractions useful for 1) preventing agents from doing the unintentionally bad things you hear about every week without constraining them to be useless, 2) getting the rest of your teams and organizations to adopt them with minimal friction. We're a small team of humans with dozens of agents: our company operates on the infrastructure we build for enterprises. We're looking for agent-forward engineers and GTM folks to help solve scaling problems, maintain the highest standards for security, make agents and MCPs usable and useful. If you have experience in infra, security, and agents, and believe MCP, while not perfect, will evolve to become critical AI infrastructure, you might find the problems we're working on exciting! You can apply via MCP here: https://www.mintmcp.com/hiring

Promptwatch | https://promptwatch.com | Amsterdam, Netherlands | HYBRID/ON-SITE | Full-time | https://promptwatch.com ==================== Promptwatch helps companies track and improve their visibility in AI search /ChatGPT, Google AI mode and any other AI app. (GEO). We handle 1,500/events/second, run millions of prompts a day, analyze them for brand mentions, sentiment, competitive intelligence, and help companies create and optimize content. We have the largest GEO insights platform with billions of prompts, responses, clicks, and mentions. Work: Own app layer, real-time APIs & queues; ship end-to-end features. Stack: TypeScript, React 19/Next.js, Node, tRPC, Postgres, GCP, Nice to haves: ClickHouse, Elasticsearch. You: 8–9 YOE, strong TS/React/Node. Comp: €90k–€110k + equity. Apply: https://promptwatch.com/careers/senior-full-stack-developer-... (mention “HN: Full-Stack Developer”).

The Allen Institute for AI (Ai2) | 3 open Senior Software Engineer roles| Seattle, WA | Full-time | allenai.org Ai2 is a Seattle based non-profit AI research institute founded in 2014 by the late Paul Allen. Our mission is building breakthrough AI to solve the world’s biggest problems. We are hiring 3 Senior Software Engineers to join the Agentic Applications team. This team builds open, production-grade AI systems that power scientific discovery. To Apply: Senior Software Engineer, Data: https://job-boards.greenhouse.io/thealleninstitute/jobs/7872... Senior Software Engineer, Full Stack: https://job-boards.greenhouse.io/thealleninstitute/jobs/7872... Senior Software Engineer, Platform: https://job-boards.greenhouse.io/thealleninstitute/jobs/7872...

Vantage | Founding Solutions Architect / FDE | NYC and Remote | Full Time Vantage is an a16z-backed FinOps / Cloud Cost Management platform that helps 15,000+ organizations globally like Block, Canva, Temporal, Rippling, FanDuel, CircleCI, etc manage their cloud, SaaS and AI costs. As a Solutions Architect, you will work hands-on with Vantage’s most strategic and technically complex customers to ensure successful adoption and long-term value. This is a highly technical, customer-facing role focused on implementation, architecture, and problem-solving, rather than pure support or customer success. We're a well funded Series A company and [backed by a16z, Scale venture partners and founders of Cloudflare, DigitalOcean and Segment]. The company is between 50-75 people today and scaling up quickly. We're headquartered in NYC but US-remote friendly (sorry, we can't handle international at this time). Website: https://vantage.sh/ Learn More: https://www.vantage.sh/careers

Evervault | https://evervault.com | London, New York, Dublin | Full Time | Hybrid (3 days in office) Evervault's mission is to make world-class data security effortless and pervasive. We use applied cryptography to secure the most sensitive data, in the most sensitive areas like payments, banking and healthcare. We build products to protect customer data with the latest advances in encryption and confidential computing, so our customers can minimize the headache of compliance and data security. We are a small team (15 engineering, 35 overall) hiring across engineering, sales, marketing and finance for people who are passionate about building out our roadmap of products to protect companies from data breaches in a world where data has become gold. Open roles: - Senior Software Engineer (Payments) - Product Engineer - Design Engineer - Brand Designer - Head of Marketing Out stack is: Rust, Node.js (TypeScript), AWS Apply here: https://evervault.com/jobs or ask me a question shane@

Category Labs | https://www.category.xyz/ | Remote and NYC | Full Time | $200K USD+ Category Labs (formerly known as Monad Labs) is a team of systems engineers and researchers on a mission to design and build at the frontier of decentralized technology. We strive to design and build step-function improvements over existing blockchain solutions. After raising $225M in series A funding, led by Paradigm, we are growing our team. Senior SWE, Compiler: https://jobs.ashbyhq.com/category-labs/e5c34899-cea1-4d25-be... Smart Contract Engineer (Solidity): https://jobs.ashbyhq.com/category-labs/776ce314-aa12-471b-92...

VLM Run (https://vlm.run) | 1x Product + 1x ML Staff Engineer | Santa Clara, CA (HQ) We're building the inference and orchestration layer for production Vision-Language Models. We care deeply about fast and ergonomic visual inference, reliable structured outputs, and the observability to iterate on them. A few things we've shipped recently you can poke at: 1. Orion: our visual agent that reasons and acts over images, video, and documents. Chat at https://chat.vlm.run. 2. mm-ctx: a Unix-style multimodal CLI (find, cat, grep, wc) that gives coding agents real context over images, video, and PDFs. Rust core, Python devex. 3. vlmbench: single-file CLI for benchmarking VLM inference (TTFT, TPOT, throughput) across vLLM, Ollama, and SGLang. Apply: https://app.dover.com/jobs/vlm-run Email hiring "at" vlm.run with your GitHub + a couple recent projects. [1] https://chat.vlm.run [2] https://pypi.org/project/mm-ctx | https://www.vlm.run/open-source/mm [3] https://github.com/vlm-run/vlmbench | https://www.vlm.run/open-source/vlmbench

General Fusion | Senior HPC System Administrator | Richmond, BC, Canada | ONSITE or HYBRID (3 days/week) | Full-Time | $126k-$154k CAD | Immigration support for US candidates General Fusion is a fusion energy startup (est. 2002) operating a fusion demonstration machine (LM26) at our Richmond, BC labs. We're hiring an HPC Admin to manage and evolve our Rocky Linux cluster (70 nodes, 1PB storage, SLURM) and help shape our broader research data infrastructure, bridging simulation and experimental data systems. Stack: Rocky Linux, SLURM, InfiniBand, Apptainer, Prometheus/Grafana, HDF5/Parquet, DVC/LakeFS, ClickHouse/DuckDB, MongoDB Requirements: 5+ years in scientific/HPC computing, 2+ years managing HPC clusters, strong Linux sysadmin background. Apply here: https://workforcenow.adp.com/mascsr/default/mdf/recruitment/...

Stealth Startup | Founding Engineer | NYC (in-person 5x/week) | Full-Time The mission We’re building a best-in-class multi-modal AI agent product (voice + SMS + email) with the potential to disrupt deeply entrenched software businesses and unify a fragmented industry. We’re a tiny team with real traction pre-product, moving fast, and we care obsessively about craft. Why this role This is a founding engineering seat: you’ll be an early builder shaping the product, architecture, and quality bar from day one. In the first 3–6 months, the role is highly IC-focused. As we scale (including our first in-person hub/site and new hires), this role has optionality (i.e., growing into a leadership role or staying on the IC track and owning the engineering roadmap) for the right person. What you’ll do Build real-time systems for voice (streaming audio, low latency, turn-taking), SMS, and email automation with robust state + memory. Design the foundation: architecture, data model, reliability, observability, deployment, and developer velocity. Set the quality bar: clean code, pragmatic abstractions, testing strategy, “don’t break prod,” and thoughtful product UX. Partner closely with the co-founders on product decisions. You’ll have real influence over what we build and how it feels + how it's designed. What we’re looking for You should be able to work anywhere in the stack (frontend, backend, infra, integrations) and you know how to make smart tradeoffs. Strong product sense: you’re obsessive about confusing UI and you want to make workflows feel magical. Systems thinking: you can design for latency, reliability, and iteration speed (especially for real-time voice + agent state). High ownership: you run toward ambiguity, unblock yourself, and care deeply about outcomes. Startup mindset: high-risk/high-reward energy, low ego, high pace. Bonus points: Experience with agentic systems: LLM orchestration, tool calling, RAG, evals, prompt/versioning, guardrails. Voice/telephony or streaming experience (WebSockets/WebRTC, audio pipelines, turn detection). Messaging + deliverability experience (SMS workflows, email sending, compliance/opt-in, bounce handling). Familiarity with modern stacks (examples): TypeScript/Node, Python, React/Next.js, Postgres, Redis, queues, Docker, AWS/GCP, observability.

Atom Computing | Senior Infrastructure Engineer + Principal Software Engineer + Software Engineering Manager | Boulder, CO (Hybrid) | Full-time Atom Computing is developing large-scale quantum computers using arrays of optically-trapped neutral atoms. We are building cutting-edge systems for on-premises deployment. Our unique approach to highly scalable quantum computing will enable customers to achieve unprecedented computational breakthroughs. Available Roles: Senior Infrastructure Engineer - sits at the intersection of cloud infrastructure, on-prem systems, developer tooling, and production reliability. You’ll work closely with software engineers and physicists to improve deployment workflows, observability, automation, and system performance across a hybrid environment. - <https://jobs.lever.co/atomcomputing/d41b071a-3faa-435c-baba-...> Software Engineering Manager - Help define the technical direction across externally facing APIs, cloud integrations, researcher workflows, and the productization of Atom’s quantum computers. This is a unique opportunity to lead greenfield development efforts at the intersection of distributed systems, cloud infrastructure, high-performance computing, and quantum technologies. <https://jobs.lever.co/atomcomputing/68b51bf2-f5f6-4657-b827-...> Principal Software Engineer - architect and build the backend services powering our neutral atom quantum computing platform. This role focuses on scalable distributed systems, quantum job orchestration, cloud infrastructure, and production-grade APIs, working closely with physicists and hardware engineers to turn advanced quantum workflows into reliable commercial systems. <https://jobs.lever.co/atomcomputing/a74fb4af-b45f-4684-b1db-...>

Psiphon | iOS / Flutter Developer | Toronto (Hybrid) | Full-time Psiphon is a VPN app used by millions of people to access the open internet in regions where it's restricted. Small team, software that matters. We're building the next-gen client app in Flutter (iOS, Android, macOS, Windows) and need someone who can work across both iOS native and Flutter. Split is roughly 65% Flutter, 35% iOS native (Swift, StoreKit, entitlements, network extensions). You'll have mentorship from a senior iOS specialist for the deeper networking work. Day to day: Feature development in Flutter, iOS platform integration (subscriptions, permissions, App Store), and occasionally going deep into network extensions and packet tunnel providers. Small team (~3-4 core devs), high ownership, low ceremony. Looking for: Strong Swift experience beyond just UIKit/SwiftUI app dev, comfort with the iOS ecosystem (App Store process, provisioning, StoreKit), and willingness to context-switch between Swift and Dart in the same day. Flutter experience is a strong plus but not required if you pick up frameworks quickly. Contact: jobs@psiphon.ca

Missive | Senior Backend Developer | REMOTE (Eastern americas to Central central Europe) | Full-time Missive brings inbox collaboration to teams that run on email. This isn’t your typical SaaS; it’s a full-fledged app users live in all day. We integrate with dozens of APIs and servers, process 10M+ emails, 100M+ requests per day serving thousands of users who collaborate in real-time. If you’re excited by data at large scale, complex edge cases and third parties that always find new ways to fail, this is for you. Missive started over a decade ago. It is mature, still 100% founder-owned and highly profitable. We’re in it for the long run; a small, dedicated team building a product customers genuinely love. We keep our stack simple and that doesn’t mean boring. The backend is a Rails monolith, Postgres, plus a few tiny services in Ruby, Node or Bun. Warning, we are hiring remotely, but Eastern americas to central Europe timezones only. Read more and apply here: https://jobs.rubyonrails.org/jobs/27037-senior-backend-devel...

Found | REMOTE CANADA | Staff Platform/SRE | found.com Company: Series C fintech. We're building the next generation of financial tooling to help business owners succeed. Our solution blends banking, bookkeeping, taxes and payments into an all-in-one solution to help save our users time, stress and money -- so they can focus on what matters to them; running their business. Role: Small (~20 eng) team, 1-person platform function. You’d operate with immediate ownership across reliability, incident response, security/compliance (bug bounty, PCI/SOC2), CI/CD, observability (Datadog), and core infra on GCP (Mysql/Spanner/Redis/K8s/ etc). Also supporting launches end-to-end (from mobile app down to networking layer), and finding opportunities to improve developer velocity. It's a pretty broad role, but with that comes a lot of room to grow. https://found.com/careers I worked in this position for a few years, if it looks interesting send me an email -- left some clues how on prior months posts.

Radar Labs | Software Engineers (SRE, data platform, backend, full-stack, mobile) | Remote (US), NYC | Full Time | https://radar.com - Radar is the geo-location dev tool - Doing 1B+ API calls per day - Our main languages are Rust and TypeScript, we also use mobile and offline pipeline languages (Python, Scala, and Terraform). - We're based in NYC with our HQ in Union Square and remote friendly (US) Interesting things we're working on: - HorizonDB, our Geospatial database written in Rust - Precise indoor location more accurate than iOS and Android leveraging Ultra-Wideband, other mobile sensors and ML. - Anomaly detection to identify spoofed locations - Mobile infrastructure that automatically configures itself optimizing battery-life and location accuracy for different use-cases over time - Multi-Region AWS K8s deployment, 99.99%+ availability - Frontend tools to visualize and debug location data at scale Check out our jobs page here: https://radar.com/jobs#jobs If you have any questions, feel free to reply here or you can e-mail me at tim@radar.com

N26 SE | SREs, EMs, Lead Backend Engineer | Berlin, Barcelona| https://www.n26.com | Full-time N26 has reimagined banking for today’s digital world. Technology and design empower everything we do and it’s how we are building the global banking platform the world loves to use. We've eliminated physical branches, paperwork, and hidden fees for an elegant digital experience and supreme savings. Giving people the power to live and bank their way is what gets us out of bed in the morning and inspires the work that we do. We are headquartered in Berlin with offices in multiple cities across Europe, including Vienna and Barcelona, and a 1,500-strong team of more than 80 nationalities. Full job descriptions here: https://n26.com/en-eu/careers, you can email me with questions/resumes dmitrii.sergeev@n26.com

Simple Ventures | Toronto, Canada | ONSITE (3-4 days/wk) | Full-time Simple Ventures is a Canadian venture studio that builds new companies from day zero - we source ideas, validate them with real users, build MVPs, and hand off to CEOs to scale the ones we bet on. We're backed by the founders and leaders of Wealthsimple, Shopify, Ada, MindBeacon, and TD. We're hiring for two roles: Founding AI Engineer - the technical backbone of the studio. You'll build internal tooling, prototype MVPs for new ventures, and partner with our portfolio companies on applied AI. New Venture Lead (0→1) - you'll operate like a founder, sourcing venture ideas, running validation loops with real users, killing weak ideas quickly, and writing CEO-ready memos for the ones we decide to invest in. Apply to either role here: https://www.simpleventures.ca/build-with-us

Giftster | Senior Fullstack Python Developer | Minneapolis, MN (Greater Twin Cities Metro) | Local Candidates Only | Full Time | Salary 150K-190K | www.giftster.com Yello! I'm Ian, co-founder and CTO at Giftster. Giftster is an online two-way wishlist service tailored for families and friend groups. Founded in 2008, we have over 3 million members and counting. We are looking for a Senior Fullstack Python/Django Developer to join our web dev team. In this role, you’ll take ownership of both building and running Giftster’s core systems. This includes our backend services, web platform, and mobile API—all of which power millions of wishlist interactions. We’re looking for someone who can contribute across the full stack and is equally comfortable shipping new features and ensuring the system operates smoothly in production. Strong experience with Python is essential and Django experience is preferred. You’ll collaborate with product and design to refine requirements, implement new functionality, improve existing features, and resolve issues. Just as importantly, you’ll help ensure that what we ship remains stable, performant, and reliable for our users. Core Technologies: Python, Django, Django REST Framework, Javascript (Vue), CSS (Tailwind), HTMX, Docker, Git, Google Cloud Platform (Cloud Run, Cloud SQL, etc), Cloudflare We are looking to add to our local team, so while work is remote, all applicants must be local to the Twin Cities MN Greater Metro area. Sorry! Apply here: https://www.linkedin.com/jobs/view/4405362533/ Thanks for checking us out!

ParadeDB (YC S23, https://paradedb.com) | Database Internals Engineers | Remote or hybrid in San Francisco | Full-time ParadeDB is a Postgres extension that delivers state-of-the-art search in Postgres. Our customers, including Alibaba Cloud, BILT Rewards, Modern Treasury (YC S18) and many others, rely on us to deliver them the performance and feature set of dedicated vector databases/Elasticsearch natively in Postgres, to simplify their stack and day-to-day operations. If you like systems, this might be for you. We're a team of 11, Series A company based in SF but distributed across North America. We're open source at: https://github.com/paradedb/paradedb. Our technical blog: https://www.paradedb.com/blog More info on roles: https://paradedb.notion.site/

Cloudpepper | Senior Platform / DevOps Engineer | Remote (CET overlap) or Brussels | Full-time | $150k–$180k | https://cloudpepper.io/careers/platform-engineer/ We run the platform behind 10,000+ Odoo instances and we're looking for a Senior Platform / DevOps Engineer to join us. Stack: Symfony/PHP, Ansible, Linux, PostgreSQL, Nginx, Python. This is a senior role that spans both sides of the platform: backend work in Symfony/PHP, and ownership of the Linux + Ansible automation underneath. You'll be the person making sure the whole thing keeps humming as we scale. We're a small team with high ownership and very little bureaucracy — if you like shipping over slide decks, you'll fit in. Remote is fine as long as you can overlap with CET, or you're welcome to join us in Brussels. Full role and application: https://cloudpepper.io/careers/platform-engineer/

I have a new role open on my team: Staff Engineer – GenAI. We’re building an enterprise-grade Agentic AI platform that helps teams build, integrate, and operationalize GenAI solutions quickly, with minimal friction. The challenge is making it work in the real world: enterprise architecture, security/compliance, governance, and operational excellence. If you’ve been the “high-leverage IC” who builds platforms other teams depend on—APIs, orchestration, standards, dev experience—this is worth a look. https://jobs.republicservices.com/us/en/job/R-174485/Staff-E... Location: Remote in the US with a preference for people Arizona (but not mandatory) Comp Range: $132,600- $182,250 DOE. Sponsorship: Not at this time

Kanary | Full Stack Engineer | Remote (US) | Competitive Salary + Equity | Python / React Kanary is a personal security platform that monitors the web to identify and reduce risk based on an individual's threat model. An executive has different exposure than a gamer, and our system classifies each person's risk across 55,000+ sources. We've been building since 2020, started in campaign security, data science, and government agencies, backed by Mozilla and Y Combinator. We have 200+ organizations on the platform and are fully funded by our customers. Attackers have never had better tools. LLMs, social media, and search surface personal data in new ways. A few prompts can launch a deepfake and impersonation campaign. Risk sources appear and disappear across social platforms, telegram chats, and private data broker platforms. Kanary exists to play the cat and mouse game for people at the speed and scale of an agentic internet. Kanary is a combination of software workflows (crawling, scraping, automation), AI (data classification, research, code generation), and people (analysts trained to support customers and escalate). This is dynamic system and requires an interest in adversarial programming. We’re growing our team, and seeking a multifaceted engineer (2+ years experience). Our software stack is python, javascript, react, and for LLMs, we use Anthropic, OpenAI, and experiment with model fine tuning as needed. Experience with web scraping, data pipelines, or security tooling is required. Email steven@kanary.com with something you've built and why it was hard. Learn more here: https://www.kanary.com/join-the-team#senior-software-enginee...

Blackbird | Dev Shop | Remote (US) | Contract Blackbird builds web + mobile apps for startups and innovative companies. We work on interesting, greenfield projects, and rely on small, veteran teams who have lots of autonomy. Everyone is a remote contractor, and our work culture is low-drama and highly collaborative. No pointless meetings, no bureaucracy, no egos and lots of time spent building things. We’re looking for senior full stack engineers / CTO consultants / data scientists. We value engineers who are strong technically as well as great communicators. We work with lots of freelancers who appreciate the steady, interesting work. Our typical stack is TypeScript, React, Postgres, and AWS although it will vary project to project. If you enjoy moving fast, working with great engineers, and building something from the ground up, you’ll fit right in. If interested, reach out directly to me at vance [at] blackbird.us. If you have an hourly rate please include that + any other freelancer / agency work you’ve done. Website: https://blackbird.us/

PetsApp – The future of pet care | Remote (UK) | https://petsapp.com Open roles: Support Engineer £30k–£55k | Full-time We're building an AI-powered clinic assistant that handles bookings, messaging, and workflows for veterinary clinics. Our support function isn't a ticket queue — it's where real production issues get diagnosed, debugged, and fixed properly. We're looking for someone who's curious when things break and wants to understand why, not just that it's resolved. You'll investigate integration failures, write code to fix bugs, and build small tools that cut recurring ticket volume. You'll use AI as a genuine part of how you work — to debug faster, write scripts, and communicate clearly with customers. Apply here: https://forms.gle/8MPFDGe4pXNE4aou6

Rootly | Multiple Roles | Toronto, ON (Hybrid) + Remote | Full-time Rootly builds AI-native incident management (on-call, incident response, status pages, retrospectives, and AI SRE) in one platform. Used by Cisco, NVIDIA, Figma, Replit, Wealthsimple, Clay, Webflow, and thousands of other engineering teams. Open Roles: - Senior AI Engineer — LLM engineering, AI agents, reliability assistant - Senior Product Engineer — Ruby/Rails, owns features end-to-end - Senior Platform Engineer — infrastructure, CI/CD, capacity planning - Senior Site Reliability Engineer — SLOs, incident management, automation - Head of Platform Engineering — infrastructure strategy + team building GTM / Customer - Enterprise Account Executive (2 locations) - Mid Market Account Executive - Solutions Engineer — APIs, Terraform, technical customer success - Head of Support - Customer Success Manager - Technical Support Engineer (Hybrid) Legal - Commercial Counsel — customer/partner agreements, compliance Apply at https://rootly.com/careers

Engineering Square | AI Engineer | Bay Area, CA | ONSITE | Full-Time We're hiring an AI Engineer to build and ship production AI systems - not research prototypes. Startup experience is a must: we want someone who has shipped fast in a small team, owned systems end-to-end, and is comfortable with ambiguity. Big-company-only resumes won't be a fit. You will own: - RAG pipelines and agentic workflows (end-to-end accuracy) - GPU-optimized model deployment (Trident-style architecture) - Production MLOps: distillation, fine-tuning, training orchestration - Data modeling for AI persona capabilities - The infra around it: Docker, CI/CD, logging, monitoring, observability You should have: - 3-12 years shipping AI/ML in production (notebooks do not count) - Time at a startup or scale-up where you owned what you built - Strong Python; bonus for C++/Java/C# in performance-critical paths - Hands-on with RAG, MLOps tooling, and GPU deployment at scale W2 full-time. Must be authorized to work in the US. No remote, no C2C. Apply: saikumar@engineeringsquare.us (subject: "AI Engineer - [Your Name]")

Proven Software | QA Analyst | REMOTE (US) Full-Time | $85k-$110k We've hired three developers from HN and now we're looking for a QA Analyst to join the team. Proven is a start-up software company delivering a modern electronic medical record (EMR) to behavioral health and physical therapy. Proven's Founders and Executive team have decades of experience successfully growing and scaling companies in healthcare. Our mission is to deliver an innovative and impactful solution to healthcare providers leveraging modern technology. At Proven, we are looking for bright, hard-working, and highly motivated individuals who want to be a part of our fast-growing company. 4+ years software QA testing experience required. Manual testing across our EMR platform — functional, regression, and usability. Strong understanding of SDLC and Agile. Experience building out automated testing processes, EMR/healthcare software, HIPAA, or SQL are bonuses but not required. We primarily work ET hours but are flexible. Excellent PTO and employer-sponsored healthcare benefits. Email us at: hiring AT provensoftware DOT com

Yidi's Consulting | Senior Full-Stack Engineer | REMOTE (LATAM/EU time zones welcome) | Contract-to-hire | $40/hr | yidisconsulting.com We're a 4-person boutique consulting shop in Albany, NY building custom web apps for healthcare, legal, and education clients. Looking for a senior engineer to work alongside the founder on production systems for clients. Stack: Go (Echo, ENT), PostgreSQL, AWS, Cloudflare, Clerk, Alpine.js, Tailwind, Vite, Terraform. We have a proprietary ~1M-line Platform Foundation that anchors most projects. You: Shipped real Go in production (not "willing to learn"). Comfortable across the stack. Opinions about migrations, RBAC, and not-overengineering. English fluent enough to talk directly with clients. Process: Paid trial task → 3-month contract → conversion to long-term contractor. No middlemen, no platform markup. Apply: hiring@yidisconsulting.com with a Go project you're proud of and a brief note on how you'd approach a vertical-slice task touching ENT, an Echo handler, and an Alpine component.

Kiloforge | Founding Engineer | Early-Stage | Full-time | San Francisco | Onsite - Product: Kiloforge is a company factory: a system that autonomously ideates, validates, builds, and distributes software products. - Why: Before AI, countless niche communities and problems had no way of being served with first-class, high-quality software. As software trends towards zero cost, solving these problems is now economically feasible. - $5M+ Funding: a16z, Uncork Capital, Rahul Vohra ==Who You Are== - You're a scrappy, generalist builder with strong product taste and a founder's mindset - You thrive in chaos, love learning everything, and have built things real people use ==Team== - Founded companies before, including one that scaled to $20M ARR - Built dozens of products with thousands of users - Shipped patented technology and features used by billions of people ==Interview== Meet with founder [15 mins] >> In-person [1 hr] >> Onsite w/team [half-to-full day] ==Contact== hello@kiloforge.com More info: https://jobs.ashbyhq.com/kiloforge/b5ebae38-a1de-4a26-bac0-e...

Caribou | Toronto| Full Time | Hybrid (one day in office) | https://www.caribou.care/ Caribou helps homecare organizations attract, engage, and retain staff through data-driven recognition, rewards, and coordination tools that make the lives of patients and their caregivers better. We're a small company of ~50 people who are mostly based in the GTA. We are building on our core product such as deploying AI-powered agentic systems that work alongside agency coordinators to handle routine coordination, outreach, and administrative workflows to improve agency operations. We are hiring: Senior Software Engineer: https://caribou.breezy.hr/p/66f1f5c2f30f-senior-software-eng... Senior Analytics Engineer: https://caribou.breezy.hr/p/990e66f091e4-senior-analytics-en...

Return | REMOTE | DevOps / Platform engineer | Full-time Return (https://return.energy) is hiring a DevOps engineer who will build and run the infrastructure behind platforms that accelerate the transition to carbon-free energy. Return's main activity is building and operating industrial-size Battery Energy Storage Systems. Our operations are located in the Netherlands, Germany, Belgium, and Spain. You will be making a measurable (country-level) impact on the transition to renewable energy. Return recently raised €300M to support its growth. While we employ over 120 people, Return's technical team is still small (15 people). Our platform automates processes in energy storage, monitoring, market optimization, sales, project management, procurement, construction, and customer service. Behind it sits a mix of EU cloud and on-site compute at our battery sites, with strict uptime and security requirements. During the first four years of operation, we laid the foundation for our platforms, and we are ready to scale up. This is why we are looking for an experienced DevOps engineer who can own the full picture: cloud environments, self-hosted infrastructure at our BESS sites, and the operations centers in Amsterdam and Eindhoven from which we run the fleet. Your primary focus will be to design, automate, and operate the infrastructure that our virtual battery platform runs on. That means EU-only cloud providers for application workloads, hardened on-premise setups at our sites, and the connectivity in between. You will be the person who decides what gets deployed where, and who makes sure it stays up and stays secure. https://jobs.polymer.co/return/39863

Sundogs | SWE, Data & ML | Remote CET / EST | Contract or Full time We're Sundogs, an early-stage startup (15 people) founded by ex-Googlers. We use AI and human creative expertise to transform video advertising. We're looking for a Senior Software Engineer, Data & ML (Python) to join our team and help bring our Ad Scoring technology from MVP to production. The role spans across Backend Engineering, Data Engineering and ML work. The job is full remote, but we do meet a couple times per year. We look for candidates between the CET and EST timezones, in Europe or US/Canada (Western Europe / Eastern US). Full JD: https://tinyurl.com/3d5rddw9 Find out more: https://sundogs.io/ To apply, please send your resume, intro and answer to questions at work@sundogs.io .

Tether | Backend Engineer - Wallets | REMOTE (Worldwide) | Full-time | https://careers.tether.io/o/backend-engineer-wallets-100-rem... Tether is hiring a Backend Engineer to build robust, scalable, and secure backend solutions for our digital token infrastructure and wallet services. You will work on groundbreaking, high-availability projects utilizing microservices and P2P technologies. Requirements: Highly proficient in Node.js/JavaScript, microservices and databases (e.g. MongoDB). Strong security and scalability mindset. Bonus: Blockchain integration skills, High-Availability systems, Redis. Apply here: https://careers.tether.io/o/backend-engineer-wallets-100-rem... (Note: To avoid recruitment scams, please apply only through our official portal. We only communicate via @tether.to or @tether.io emails).

Surge AI (https://surgehq.ai/careers) | Software Engineers (full-stack / product) and Strategic Project Lead, and many more https://surgehq.ai/careers | Full-time | ONSITE SF or NYC | Remote Our mission at Surge is to build the human infrastructure behind the next generation of models. We operate the largest human data platform in the industry and power the AI teams at all of the top AI labs. Our current focus is RL environments to help our clients ship agents that interact with the world. Here are some examples of our past work: - GDP.pdf: https://surgehq.ai/blog/gdp-pdf-can-100b-ai-models-master-th... - Building EnterpriseBench: https://surgehq.ai/blog/enterprisebench-corecraft - RL Environments and the Hierarchy of Agentic Capabilities: https://surgehq.ai/blog/rl-envs-real-world You’d be joining a rapidly growing team of former founders, engineering leaders and AI researchers from Google, Meta, Twitter, and Airbnb. We work in small groups, ship quickly, and value autonomy and ownership. No previous AI experience is required, if you have the engineering skills you can learn what you need on the job. We're looking for senior engineers to work out of our offices in SF or NYC, or remotely. Please reach out to us at careers@surgehq.ai with a resume and 2-3 sentences describing your interest. Excited to hear from you!

MemberPress | AI Engineer | Remote | Full Time | www.memberpress.com We’re looking for a sharp AI engineer with real experience shipping production LLM systems. We need you to own the AI core of a new product — building inference pipelines, writing evals, keeping costs in check, and making the system measurably better over time. Apply here: https://memberpress.com/careers/ai-engineer-full-time/

Fixly | Senior Software Engineer (Backend, Node.js) | Poland | Remote | 2 days in office per month | Polish language required | Contract Fixly is one of the largest service marketplaces in Poland, connecting customers directly with local service providers - from handymen and electricians to accountants and language instructors. We're a product team building the platform that helps thousands of professionals find work every day. We're looking to bring on a Senior Software Engineer on a B2B contract. Remote-first within Poland, with one 2-day onsite in Poznań each month. Polish language required. What we're looking for: - Strong backend experience with Node.js - Senior-level engineer comfortable owning systems end-to-end - Not afraid to engage with the product side - thinking about users, trade-offs, and what we're actually building, not just how Big pluses: - DevOps experience - AWS experience - Frontend, Golang, or mobile experience If you're a backend engineer who's also picked up infra/cloud chops along the way, we'd love to talk. Interested? Send your CV/resume to recruitment@fixly.group and mention HN - we'll get back to you.

Gain Compliance | Sr Software Engineer | Remote (USA) | Full-time | ~$160k | https://join.gaincompliance.com Hey this is Brian from Gain Compliance, we've had success hiring out of a hacker news thread before, so let's give it a spin again. We are a small company that builds financial reporting tools for the insurance industry. While the domain might be foreign to most, we are having a lot of fun building modern web software with React, Python and Node running on GCP infrastructure. You'll be joining 7 other engineers split into two full stack product focused teams. We've been around over 10 years, are profitable, and value empowering our customers to breeze through their boring compliance tasks, building great teams that focus on outcomes over features, and work place stability. We wrote a lot more over at https://join.gaincompliance.com if you are interested.

Smarkets (https://www.smarkets.com) | Full Time | Hybrid - Onsite (London, UK) Smarkets runs one of the world’s most sophisticated prediction markets, handling over £29 billion in volume since 2010 and engaging 200,000+ traders globally. We’re a technology company that happens to revolutionise betting - from sports to political markets, to delivering the sharpest prices and the fairest odds. We are currently looking for: Software Engineers - Backend, Python, Rust - https://smarkets.com/job/aaaf901f-77c0-4b35-9240-ed4cfa668ba... Staff Engineer - https://smarkets.com/job/134306ca-60bb-478f-9b6c-4844009a908... Engineering Team Lead/Manager - https://smarkets.com/job/59c8a1d1-25b6-4350-840c-9eb370d1433... Dev Ops Engineer - https://smarkets.com/job/99823479-fd3a-4720-8090-455394fb63f... Senior Cloud Infrastructure Engineer - https://smarkets.com/job/7ee3a731-acc0-448f-bc61-64429e2ebf9... Senior Data Engineer - https://smarkets.com/job/1c6dd7d6-b742-43cf-aa42-772ff392108...

Revio Insight | Data Engineer | Remote (US) | Full Time We are seeking a Data Engineer to design, build, and maintain the data infrastructure that powers our platform, which serves community banks. This role will focus on building reliable and scalable pipelines to ingest, process, and transform core bank data. They will also design integrations of our data with CRMs and marketing automation platforms. Our platform primarily receives structured data from customers in CSV format delivered via SFTP, which must be validated, transformed, and loaded into our AWS-based data infrastructure. The Data Engineer will own the reliability, performance, and scalability of these pipelines while ensuring strong data quality and security practices appropriate for financial data. This role will work closely with product, engineering, implementation, and customer teams to ensure accurate and timely data processing that supports both customer-facing functionality and internal analytics. To apply, email dataengineer [at] getrevio [dot] ai.

Coop (https://smart.coop.farm)| 2nd Founding Engineer | iOS Heavy Engineer | Hybrid onsite | Austin, TX | Full-time, Part-time My name is AJ Forsythe and I'm the Founder / Chief Chicken Tender at Coop! We're an Austin TX based company on a mission to build the world’s largest decentralized food production network, starting with AI powered chicken Coops. We’ve been in the market for about 18 months and our customers are in 48 states and will generate about >10M eggs this year. It's insanely fun to work on and we have a shot at building a huge business in the connected urban farming space. If you’re big into computer vision, consumer products that are fun, and an awesome team we would love to chat. The Coop has an automatic door + cameras doing computer vision work (predator detection, egg alerts, remote health monitoring, etc). It's a super exciting time and are seeing directional product market fit which I'm thrilled about. Seriously go check out our website, it's a super fun + amazing product. We’re a tight-knit team of 5 people with 15+ years of experience working together. We’ve been through YC, started and scaled multinational million-dollar businesses together, taking them from idea to acquisition by a Fortune 50 company. We’re gritty and passionate without taking ourselves too seriously - and we’re here to build something really exciting that helps people reconnect with their food and the planet. We're VC backed (call it $5M) by some of the world's best investors but we are a scrappy small team that moves fast. We have an absolutely fantastic CTO Ryan that I'm looking for his / our right hand person to work alongside with. I think the term full stack is overused but that's closest to what we're looking for. Also this really isn’t a traditional Eng role, I look at it as we’re a small growing team and you would be one of us working on a ton a cool projects on day 1. Also, we LOVE working with founders so if you've started a company before that's epic. Oh also, I have a fun project where I want to make a water gun turret that uses our cameras to detect predators and allows you to aim and blast them. If you're into hacking robotics and gimbals etc, please reach out. You can also reach out to me directly at: aj[at]coop.farm - Just email me your LinkedIn / GitHub / portfolio + why you think you'll be an awesome fit and I'll respond. Please don’t use GPT too much. This is my 3rd company (2 have exited) and I want to build the super solid core team and you might be the perfect fit for us and vice versa. Bwok Bwok! AJ

Mitte (https://mitte.ai) | Berlin | ONSITE | Full-Time Mitte is an AI creative suite. We've built our own media agent and we're hiring engineers who want this to be the best work of their career. Founded by an ex-Superhuman lead engineer. Lean startup and unix philosophy run deep at Mitte. We ship every day and like to design systems, be thoughtful about patterns and primitives before scaling the codebase, especially with AI. We're hiring: - Backend Engineer (Elixir, Go) — own services end-to-end, from agent orchestration to the systems that move media at scale. - Full-Stack Engineer (Go, TypeScript, Redux Toolkit) — build the surfaces creators actually use. Strong design taste and obsession with detail expected. Berlin, on-site. We work in the same room because the product is moving too fast for anything else. Reach out: careers@mitte.ai — tell us something you've built that you're proud of, and why it was hard. Berlin based applications only.

Waypoint Learning (EdTech) | Founding Engineer | NYC or Remote (US) | Full-time Students with disabilities are not receiving the support they deserve, and Waypoint is changing that. We're building AI tools that special education teachers use to better support students with Individualized Education Programs (IEPs). Hiring a founding engineer and running a one-week challenge to start creating together. Best submission gets $500 and top 5 get an immediate final round interview. Deadline: Monday, May 11 @ 12pm ET. Challenge details: https://github.com/igoldstein19/waypoint-challenge/ Stack: TypeScript/Python, MCP, Claude Prefer to apply through the standard process or want to learn more? Email resume and 1 paragraph about interest to isaac@waypoint-learning.org

Liquid Blade | Technical Lead (Fractional) | REMOTE | Success-Fee / Milestone-based Assembling a small team for phased deployment of high-density GPU infrastructure. We have vertically integrated EPC/renewables and specialized construction partners already in place. Current needs: Validating site-specific power and thermal constraints. Reviewing rack density assumptions (HGX/H100/H200). Supporting technical discussions with colo and hardware vendors. Advising on liquid cooling / CDU / RDHx deployment. Ideal background: HGX/H100/H200 infrastructure, high-density colo deployments, liquid cooling, or thermal-power integration. Terms: Open to fractional, advisory, or milestone-based structures. Compensation tied to execution milestones, not billable hours. We move on data. Contact: tim@liquidblade.com

Deducta | Senior Frontend Product Engineer | London, UK | Hybrid (3 days/week in office) | £150k+ cash/equity We’re a data intelligence platform for global enterprises. We are well funded, growing fast, and solving the most pressing data challenges for some of the largest and most recognizable companies in the world. The capabilities of SOTA LLMs enable us to this at an unprecedented scale and success rate. We’re looking for a Senior Product Engineer (Frontend) to shape what our product looks like and how it’s built. Specifically: - Lead on the deployment of LLMs as an enhancement/substitute to traditional interfaces - Own feature developments and fixes across the frontend from ideation to deployment Stack: Vue.js, Tailwind, Tanstack Contact: kimathi [at] deducta dot ai / Apply: https://apply.workable.com/deducta/j/8ADBB3795A/

Borrowell | Development Roles | Remote across Canada with office in Toronto | Full Time, Permanent, Benefits from Day 1 Borrowell pioneered free credit scores for all Canadians in 2017 and now we’re focusing on building net new products that will be the first of their kind in Canada. With more than 3 million members, Borrowell is one of the largest fintech companies in Canada. Our team is diverse, inclusive, and driven by a shared passion for making a meaningful difference in the lives of Canadians. We pride ourselves on fostering a culture of collaboration, humility, and innovation. If you’re looking to join a company that’s transforming the financial landscape and empowering Canadians to achieve their financial aspirations, we invite you to explore career opportunities at Borrowell. Together, we can help Canadians feel confident about money. https://borrowell.com/careers

Rad AI Multiple roles | On-site San Francisco | Full-time | https://www.radai.com/ We're rapidly staffing-up our new office in San Francisco at 2nd & Market! Empowering physicians with best-in-class AI radiology solutions to save time, reduce burnout, and improve patient care. Series C with tremendous momentum. High-priority technical roles in Engineering Leadership, Security Leadership, Infrastructure Engineering, Head of Continuity Product, and many more roles. See all open roles and apply here >> https://www.radai.com/careers?utm_source=W29wy29rlJ

Capital Technology Group (CTG) | Senior AI/ML Engineer | Remote (US Only) | $150K–$200K We build and deploy production systems for federal clients—focused on modernizing government software. Looking for a Senior AI/ML Engineer who can take models from prototype to production in AWS. What you’ll do: Build and deploy AI/ML solutions (POC → production) Work across Python, data pipelines, and cloud (AWS) Evaluate new tools and make practical tradeoffs Mentor engineers and lead small teams Requirements: 7–10+ years experience Production experience in AWS Experience deploying ML systems (TensorFlow/PyTorch) Strong communication skills Must have: US Citizen Eligible for Public Trust If interested, send your resume to bhemphill@capitaltg.com and mention you saw this on Hacker News.

Deepline | NYC (ONSITE) | Founding Full-stack Engineers and Forward Deployed Engineers | $160k–$220k + meaningful equity User interfaces are dead. Knowledge workers will exclusively work through agent interfaces like Claude Code/Cowork. We've built the interface layer to enable that. One API that unifies hundreds of data providers, workflows, and data infrastructure to agents like Claude Code. We shipped our mvp last month; hundreds of early adopters signed up and are using Deepline. You'd build core platform: agent-facing abstractions, infrastructure, UI. TypeScript/Python/Next.js/Postgres. $3.3M raised from Lerer Hippeau + Looker founding team. Technical founding team from Uber, Lyft, Capchase, MIT, Waterloo. https://code.deepline.com/careers

Estuary | US-Based / Remote | Full-time – https://estuary.dev/ Estuary is a VC-backed, post–Series A startup powering right-time data replication and transform — from sub-second CDC replication to terabyte-scale OLAP data flows. We’re open-source, developer-first, and focused on making data movement radically simpler across both our Platform and Applications layers. We’re hiring for: Senior Systems Engineer — Capture & Materializations Design and build high-performance connectors that move data in and out of Estuary in real time. Work across APIs, databases, and streaming systems to ensure correctness, reliability, and scalability. This role is deeply systems-oriented, with a focus on data plane execution. Go and Rust are core to our stack. Senior Systems Engineer — Control & Data Plane Own core infrastructure that orchestrates and powers Estuary’s runtime — from control plane services to distributed data processing systems. Tackle challenges in scaling, fault tolerance, and performance across a globally distributed system. Strong backend fundamentals required; Go and Rust experience preferred. Product Manager - Own product areas end-to-end, working closely with engineering and design to shape the roadmap and deliver a great developer experience. Engage with users, translate real-world use cases into product decisions, and help define how modern data infrastructure should feel to build with. What we’re looking for: Engineers who care about building reliable, maintainable systems and enjoy working with complex APIs and data flows. We value curiosity, clear communication, and a willingness to learn. Technical Product Marketing Manager - Founding product marketing hire working closely with Estuary’s Head of Marketing and Developer Relations team. Help shape how we position and communicate the platform to technical audiences through product launches, messaging, technical content, demos, customer stories, and developer-facing campaigns. Bonus points for experience with CDC tools, open source contributions, or fast-paced startups. To apply: Email your resume to careers@estuary.dev

FranklinCovey | https://www.franklincovey.com/ | Senior Software Engineer | Remote (US) | Full-time We're in the business of leveling up managers and making workplaces great, in search of a senior software engineer who's looking to join a team and do good work architecting, building, and maintaining a web platform that facilitates learning both online and in-person. Stack: Django, Python, React, TypeScript, PostgreSQL, AWS For more details, please check out: https://careers.franklincovey.com/virtual-usa/senior-softwar...

Fathom – AI Notetaker (fathom.ai) YC W'21, ~100 employees, growing extremely quickly We’re the most installed app on HubSpot marketplace and our recent Fathom 3.0 launch was #1 on Product Hunt: https://www.producthunt.com/products/fathom We’re hiring for both our Full Stack Engineer and AI team. Our team values: Care Deeply, Seek Leverage, Share Ownership, Sustain Urgency, and Be Tenacious. The engineering team works fully remotely (but synchronous), and our AI team is Hybrid (SF based). Multiple team offsites per year. List of all of our open positions (including role descriptions for AI engineering roles and Full Stack Engineer) here: https://jobs.ashbyhq.com/fathom.video * We’re very fast at reviewing applications; yours will be seen within 48 hours of submission! Please indicate that you’re coming from Hacker News.*

EaseCloud | Remote (EST overlap) | Full-Time | Platform & Data Engineers | https://www.easecloud.io EaseCloud builds cloud platforms and modern data stacks for companies scaling on Kubernetes and Snowflake. We’re hiring engineers who like working across infra + data and actually running what they build in production. Open Roles: ++ Platform Engineer (Python, GCP & Azure) [Kubernetes, Terraform, Python, GCP, Azure, CI/CD] ++ Platform / Data Engineer [Airbyte, Snowflake, dbt, Metabase, Python] What you’ll do: - Own systems end-to-end (design → deploy → operate) - Build and scale multi-cloud platforms - Run production data pipelines and analytics stacks - Work directly with founders and engineering teams We’re a small team, high ownership, no unnecessary process. You ship, you own it. Remote-first (EST overlap helps). Apply: careers@easecloud.io or visit https://www.easecloud.io/careers Mention you saw this on HN.

Graphics/Multimedia Editor for The Upshot at The New York Times | Full-time | NYC or DC We're looking for a visual journalist and graphics developer to report, write, design and code data-driven stories and visualizations. We're looking for someone who can produce inventive explanatory, analytical and interactive journalism in a variety of forms, from conception through publication; and who is also enthusiastic about contributing your skills to colleagues' projects. https://job-boards.greenhouse.io/thenewyorktimes/jobs/466994...

Espresso AI | Staff ML, Staff Infra, FDE | Brooklyn or San Francisco | Full time We're using LLMs to build neural optimizers, neural scheduling systems, and neural workload tuners. (If you're ex-Google, you can think of it like Borg powered by LLMs.) Today we use ML to make data warehouses and spark jobs more efficient. We're hiring staff ML engineers to train models that can understand how much compute a job needs, how it scales to larger machines, whether a machine can run more jobs, and so on; and staff infra engineers to take those models and deploy them on real-world production systems. We're also looking for FDEs who can help us talk to users and run pilots. This is a pretty technical role (you need to be able to do data analysis and debug in prod) that's also user-facing - it should be a good fit for a former (or future) technical founder. If this sounds cool, please email me: ben [at] espresso [dot] ai

Higharc | REMOTE | Full-time | https://higharc.com Thousands of homes have been built with Higharc since 2022. We’re changing the way homebuilders design, sell, estimate, and build, resulting in better, more affordable homes. I’m starting a new Labs team to expand our platform and explore new markets in residential construction. I’m especially looking for a rare, entrepreneurial product engineer: * Staff Software Engineer, Labs - https://jobs.ashbyhq.com/higharc/c620be3c-6529-4776-9f02-da1... We’re also hiring across all teams, from fullstack generalists to ML engineers, keenly interested in folks looking for deep, technical challenges: * Director of Engineering, Studio - https://jobs.ashbyhq.com/higharc/469e843e-58c4-4e07-91be-d9a... * Senior Software Engineer, Geometric Modeling/CAD - https://jobs.ashbyhq.com/higharc/d5fbcbf0-0b50-4561-87e6-71c... * More roles here https://www.higharc.com/company/careers This is an exceptional opportunity to work on something with real-world impact, with a team of talented & passionate folks across a wide range of domains. We are ~200 people across the world (mostly US) and growing quickly. We were recently named to Fast Company’s Most Innovative Companies in 2026. Thanks to everyone who previously reached out and/or applied (all 1300+ of you)

Twindo (Formerly Canvas; The Spatial Computing Company) | Full-time | Remote At Twindo, we’re working on spatial computing - using computer vision to 3D reconstruct and understand your surroundings so that software can operate over real-world spaces. Twindo brings together everything that professionals need to understand the spaces they design, build, and manage, without extra site visits or second-guessing. With a quick scan or plan upload, any space becomes structured, accurate, design-ready data your whole team can actually use. ROLE (Europe Remote) Full Stack Engineer For detailed information check out https://www.twindo.com/careers/ Keywords: 3D, computer vision, photogrammetry, geomatics, SLAM, CAD, iOS, Python

EggAI | Tech Lead, AI Engineer, Senior/Lead Infra engineer/devops | REMOTE (EU, Switzerland, Norway) | Full-time or Contract Multiple roles open. We are a small boutique consultancy and are quite experienced. A lot of us have extensive consultant experience. You will join a small, highly skilled remote team of engineers and transformation practitioners working at the forefront of enterprise AI. We use AI for both development and in our solutions. We are looking for engineers that are critical thinkers, understand the limitations of AI but also where it can have a positive impact. Apply at: https://grnh.se/wr97lgu2teu Our website: https://egg-ai.com/

We The Flywheel | Remote (Worldwide) / Ho Chi Minh City (Hybrid) | Part-time | https://wetheflywheel.com We are a global media network, digital consultancy, and product studio focused on helping companies grow through technology and reach audiences at scale. We are hiring for: Growth Marketer (Entry-level, Remote, Worldwide) https://wetheflywheel.com/en/careers/growth-marketer-remote/ Growth Marketer (Entry-level, Ho Chi Minh City, Hybrid) https://wetheflywheel.com/en/careers/growth-marketer-saigon/ Digital PR & Media Outreach (Mid-level, Remote, Worldwide) https://wetheflywheel.com/en/careers/digital-pr-media-outrea... Product Manager (Mid-level, Remote, Worldwide) https://wetheflywheel.com/en/careers/product-manager-remote/ Product Manager (Mid-level, Ho Chi Minh City, Hybrid) https://wetheflywheel.com/en/careers/product-manager-saigon/ Brand Identity & Product Designer (Intermediate Level, Remote, Worldwide) https://wetheflywheel.com/en/careers/brand-product-designer/

Redbook Software | Staff Software Engineer | REMOTE (U.S.) | $200k-$250k Redbook is the new software of reference for cattle feed yards. We're digitizing the $90B cattle industry, the largest in agriculture. We have built the only cloud-based product in the industry that connects field operations and financials. Upcoming projects include integration with other #agtech software, tooling to streamline customer onboarding, integrations with hardware, integration with futures market, and much more! We are a senior team of 5 engineers, we value autonomy, keep meetings low, and we're fully remote. Our backgrounds include Stack Overflow, Microsoft, Atlassian, Elastic, and ngrok. https://app.dover.com/apply/redbook-software/fa6c1d33-5de6-4...

CLEAR | Senior Software Engineers (Fullstack & Backend), Staff/Lead iOS Engineer, Infrastructure Engineers| NYC Onsite (4-5 days in-office w/ free catered lunch daily) | https://www.clearme.com/ CLEAR is building THE secure identity company of the future. Our mission is to make experiences safer and easier—physically and digitally. With more than 38 million Members and a growing network of partners across the world, CLEAR's secure identity platform is transforming the way people live, work, and travel. Whether it’s at the airport, stadium, or throughout your everyday life, CLEAR unlocks the magic of frictionless experiences. If interested, apply here --> https://grnh.se/e4e5dc881us

Marker Learning - Founding Full Stack Engineer – Remote (USA) – 180-250k I have dyslexia. I was one of the lucky ones. Diagnosed at eight, I got accommodations and support before things spiraled. Most kids aren't so lucky. The path from initial concern to diagnosis can take years and cost families upward of $5,000. For many, it never comes at all. In one study, 50% of prisoners were found to be dyslexic, with 80% functionally illiterate. Behind every missed diagnosis is a kid who gets told they're lazy, when the reality is no one ever gave them the right test. Marker Learning is building an AI-enhanced assessment platform that makes identifying learning differences faster, cheaper, and more equitable, especially for multilingual students who are routinely misidentified or overlooked. Imagine if every kid could be screened for learning differences as easily as they're screened for vision. That's what we're building. This isn't a chatbot or a homework helper. We're a Series B company backed by Reach Capital, Andreessen Horowitz, and Primary, running a multi-million-dollar longitudinal study spanning K–12 and developing the psychometric engine behind it. We need engineers who are excited by that. We're hiring a hands-on full-stack engineer (React, Node.js, TypeScript) to help build and scale the platform: adaptive testing infrastructure, AI-powered scoring scoring and data pipelines, and the systems that maintain clinical rigor at scale. High autonomy, lightweight process, fast-paced. 8–10+ years, ideally with 0-to-1 or early-stage experience. You'll work directly with psychometrics, product, and data science, and the engineering decisions you make now will define the platform for years. Reach out directly with your gh, linkedin, and resume and why you want this position to lucie@markerlearning.com. Please specify your location, if you are interested in full time, contract or open to both. Make the subject "Founding Engineer Application (I am not a bot)".

Justworks | Hybrid (Toronto, CA – 3 days in office) | Full-Time | Senior Software Engineer https://www.justworks.com We’re helping businesses get off the ground by enabling them to focus on running their business. At JustWorks, we tackle complex HR challenges so our customers don’t have to. We’re a data-driven team that’s constantly iterating and improving, and we care deeply about building meaningful products. If you’re excited about working in a supportive, entrepreneurial environment and want to have fun while building something impactful, we’d love to hear from you. Apply here: https://job-boards.greenhouse.io/justworks/jobs/7721539?gh_j...

Orenva | Senior Contract Engineer | Remote | Contract Orenva is building governance infrastructure for founder-led businesses using AI — a multi-agent web system that keeps AI and human teams aligned with founder as work scales. Product strategy is authored in depth: agent specs, validation rules, intake design, output schemas, governance checks, and platform contracts. Your job is to wire authored input into a working system, not invent the product. Likely Python or TypeScript; I'm open to your recommendation based on the spec. Multi-agent runtime, schema-first design, full-stack web, versioned outputs. Fixed-bid preferred; hourly with cap accepted. Subcontracting mid-grade under your senior oversight welcome. Start is contingent on funding close. Estimated build: 3–6 months. Strong fit will become an ongoing technical lead / fractional CTO relationship. Email dani@pm.me to request the packet.

Oscilar.com | Sr/Staff Software Engineers, PM, Data Analyst | REMOTE (US/Canada/Brazil/Poland/UK) | Full-time AI Risk Decisioning™ platform that helps organizations manage onboarding, fraud, credit, and compliance risks Open roles: - Sr./Staff Java Backend Engineer (Brazil/North America) - Staff GenAI Engineer - Staff Web SDK Engineer - Sr./Staff Machine learning Engineer - Full-Stack Engineer ~ AI Agent Platform - Sr./Staff Security Engineer - Product Manager - Fraud & AML Data Analyst Apply at: https://jobs.ashbyhq.com/oscilar?utm_source=HackerNews

Clad (YC W23) | Software Engineer | NYC | withclad.com Clad is software for building physical infrastructure. We help contractors automate their back office so they can scale their business. We're a 7 person team in person in NYC, raised $2.7M, have >4 years of runway, and are growing faster than we ever have in the history of the company. You'll build a well-crafted product, and work on challenging problems at intersection of AI, construction (mapping), and fintech. Apply here: https://www.ycombinator.com/companies/clad/jobs/YHGyRSf-full... Or email me at jason [at] withclad [dot] com

BrightCore | Founding Engineer | Dublin, Ireland (Hybrid, 2 days/wk) | Full-time | €58–65k + 1.0–1.5% equity We're a 3-cofounder gym/fitness SaaS , closing a pre-seed. Hiring our first engineer to own: - NestJS/Postgres backend (~70%) - Coral, our WhatsApp AI agent for member retention (~30%) You'd be our first hire. Real ownership, real equity, no committees. Stack: NestJS, Prisma, Postgres, Next.js, Anthropic API, Meta WhatsApp Cloud API. Looking for: 3–5 yrs backend, comfortable shipping solo, genuine curiosity about LLMs / retention modelling. ML hobbyist > ML PhD for this role. Email: Frankie@brightcore.ie ... short note + GitHub or one thing you've shipped.

Falconer | Founding Backend Engineer | HYBRID (USA, SF Bay Area preferred) | Full-time | $150-250K + equity | https://falconer.com Hey HN! I’m an engineer at Falconer, a well-funded SF startup building the future of self-updating knowledge. We’re a small team where everyone excels at what they do. At Falconer, you’ll join former staff-level engineers from Meta, Uber, Google, and Amazon, alongside others deeply involved in open-source culture, including myself. As a founding engineer, you'll have a major impact on our product development and technical direction over our infrastructure. To apply: https://falconer.com/jobs?ashby_jid=cf424d45-bc08-4036-be3d-...

# Moyai | Amsterdam, The Netherlands | FULL-TIME | ONSITE | Founding Product Engineer About the company: • Technical founding team with relevant industry experience • Backed by well-known European VCs (SpeedInvest + Galion.exe) • Cloud native & freedom to shape our tech stack (TypeScript + Python) Ideal candidate: • Previous experience at start-up building tech at scale • Thinks in terms of product functionality and customer demands not just features • Familiar with API first practices and frameworks • Bonus points if you are an ex-founder or have been first hire before Moyai is an AI-powered agent monitoring tool for AI engineers looking to catch agent failures in production. Reach out to the founder directly: https://www.linkedin.com/in/rhommes/ or visit our website https://moyai.ai

Comity Inc. | Hybrid (NY, Chicago, or Bay Area) and REMOTE | We are expanding our team with several full-time roles: * Quantitative Researcher for Monetization * Quantitative Researcher for Portfolio Optimization * Quantitative Researcher for Congestion Revenue Rights (CRRs) * Power Market Researcher * Surety Director * Growth Lead * Originations Lead Comity is on a mission to improve the reliability, transparency, and efficiency of our energy systems, fostering a future with sustainable and abundant energy. To accomplish our aims, we’re leveraging state of the art statistical learning and convex optimization methods (AI) to build the financial rails of our future energy systems. We envision energy systems that are efficient, autonomous, resilient, and powered by 100% renewable energy. You can read the full JD and apply here: https://jobs.ashbyhq.com/comity

Do you want to work on distributed systems? We are building the stack for running agents in production. https://github.com/agentspan-ai/agentspan Apply: https://job-boards.greenhouse.io/orkes/jobs/4998231008 https://job-boards.greenhouse.io/orkes/jobs/4894213008 https://job-boards.greenhouse.io/orkes/jobs/5203462008 All the roles are in in-office in Sunnyvale, CA

23andMe | Software Engineer II, Compute Pipelines | Palo Alto, CA | Hybrid or Remote (US) | Full-time | Bay Area Rate: $150k–$190k The Compute Pipelines team processes population-scale genetic data powering features like Ancestry Composition, DNA Relatives, and health risk prediction. Looking for someone with: - Deep hands-on Python: pipelines, services, libraries - Infrastructure as code (Terraform on AWS, Docker) - Experience debugging distributed systems at scale - 4+ years industry experience, BS CS or equivalent Small high-trust team, real ownership, AI-friendly. Scientists in computational biology and population genetics embedded on the team. Apply: https://23andme.wd5.myworkdayjobs.com/en-US/23/job/Palo-Alto...

Gigs (YC W21) | Multiple US & EU Locations | Hybrid | (SF, NY, Berlin, London) | Full-time At Gigs, we're building the operating system for mobile services - a platform that enables tech companies to seamlessly embed connectivity into their products. Klarna Mobile, OnePay Wireless and Revolut Mobile are powered by Gigs! We are looking for exceptional candidates, looking to do the best work of their careers, across a wide range of roles: - Implementation Managers - Founding AEs - Fullstack & Backend Engineers - Product Chief of Staff And more! To apply go to our careers page: https://gigs.com/careers#positions

Addepar is hiring a Software Engineering Manager for our New Workflow Platform. We are pivoting from a SaaS suite to a global orchestration platform. We’re looking for a hands-on leader with 2+ years of management experience and a deep understanding of workflow technologies such as Temporal, n8n, Pipedream and Distributed Systems. Lead a team of Senior Staff engineers building the "Agentic Fabric" of the financial world.This is a hybrid role in our NYC office. Hybrid | NYC | Python/Java Job description: https://job-boards.greenhouse.io/addepar1/jobs/8460804002 Reach out directly here: douglas.clifford@addepar.com

Tandem Health | Software Engineers | On-site in Stockholm, Sweden | Full time At Tandem Health we're building a clinician copilot to allow clinicians to focus on care rather than administration. We’re building, launching and iterating quickly, and are already rolling out across some of the largest care chains across Europe, including most of the NHS. Our first product listens in to the patient-clinician encounter to generate medical records, allowing clinicians to save 5-10 minutes per patient. No longer do clinicians have to catch up on administration after hours. We’re expanding our Stockholm team with exceptional builders in a wide range of roles. More info at https://tandemhealth.ai/about/careers

Kredit | .NET Engineer Roles | Remote (US) | Full-time Kredit (https://www.kredit.fyi) is on a mission to resolve consumer debt. We help people get out of financial hardship and offer tools for companies looking to manage their internal processes. Kredit is a small team and growing. Our stack: .NET Core, C#, PostgreSQL, CQRS, Angular, GCP, Kubernetes, Terraform and much more. We are looking full-stack engineers that have a .NET background, eager to learn and motivated to work in a startup. If this sounds interesting to you, please reach out to recruiting at trykredit.com

Infisical | Full-Time | Senior Fullstack Engineers | Remote, Americas (https://infisical.com/) Secure Secrets, Certificates, and AI Agents. Infisical is the all-in-one platform to securely manage application secrets, certificates, SSH keys, and privileged access across classic and AI infrastructure — trusted by engineering teams at LG, NVIDIA, Hugging Face, and thousands of teams worldwide. * Apply here: https://infisical.com/careers * Email: careers@infisical.com * LinkedIn: https://www.linkedin.com/in/austinthompson14/

Logenta.ai | CTO | Remote (EU) We're building an agentic data analytics companion for intralogistics. Looking for a hands-on founder/CTO who can design and ship an agent-based system end-to-end. You're comfortable building an agent harness, write clean typed Python, and have experience with tools like uv, DuckDB, and PydanticAI. You should be based in Europe (Germany preferred, and Hamburg is best). If this sounds like you, email: michele.dallachiesa+logenta-cto@sigforge.com with subject "HN Who's Hiring - Logenta CTO". Include your CV and answer one question: "why me?". EDIT: Unfortunately, if you are not already based in the EU, we won't be able to proceed.

Cora AI | Full Stack / Applied AI Engineer | REMOTE (US ONLY, LA or SF a plus) | Full-time | $190–250k + early equity Customer success agents and account intelligence layer that actually do the manual work to serve and grow the book of business. So our customers can focus on the human, relationship-driven work to drive growth. Why Cora: - Work on cutting-edge applied AI: voice agents, knowledge graphs, multi-agent systems, evals, simulations, and more - Real users, real impact, high autonomy - Fast, fair interview loop — no BS - Fully covered healthcare for you and your dependents - 401(k) plan - Flexible time off Learn more: https://www.cora.ai/ Interested? Email careers [at] cora.ai — these go straight to me, and I read every one.

Aptira | Fully Remote AUS/NZ | Full-time | Senior SRE We're an Australian consulting company currently building out a multi region baremetal Kubernetes cluster for a client experiencing explosive growth and looking for SREs to help keep it running. At the base: Kata Containers, Kyverno, Cilium, TopoLVM and Ceph Workloads: Python microservices, Kafka, Postgres, Valkey and MongoDB Observability using Grafana LGTM and automated using Ansible, Helm and BitBucket. We're looking for a Senior SRE with some Kubernetes experience, decent security chops and good systems knowledge to help out on the platform engineering team. If that sounds like you, get in touch with us via careers <at> aptira <dot> com

Canopi| REMOTE (US-Based Preferred) | Senior Software Engineer | Contract | canopi.work Hey this is Dixon from Canopi, a workforce risk intelligence platform built for ground transportation operators. Our AI engine continuously monitors driver eligibility signals and surfaces real-time alerts before a carrier loses a driver, gets fined, or faces a liability event. We are not a compliance tool. We are the autonomous brain that makes driver risk intelligence possible at scale. Canopi is a Microsoft for Startups company building entirely on Azure, and is hiring engineers who want to build something that doesn't exist in the market today. We are open to an equity-first engagement while we close our seed round. Reach out to dixon@canopi.work and mention HN in your email!

40GRID - Full-time Remote | Senior QA Engineer | Product Designer Our mission is to empower field-service companies to grow by modernizing and automating their business operations. Every company we work with has unrealized potentials — our task is to build the platform that empowers growth and helps them unlock opportunities. - Senior QA Engineer Details: https://bit.ly/3PHUNzw - Product Designer Details: https://bit.ly/4uppPLq Email: jobs [at] 40grid.com (no recruiters or agencies, please put HN in subject line, thanks).

Parabola | Site Reliability Engineer | San Francisco, CA (Hybrid) | Full-time Parabola is a no-code data workflow automation tool that helps operations teams move, transform, and automate their data without writing code. LLMs are a core part of our product — we use them to help users build and reason about their workflows — and they're increasingly part of how we run infrastructure too. We're a small, product-focused team and our infrastructure runs on AWS. We're looking for an SRE who's passionate about observability and keeping systems healthy and understandable. You'll own our monitoring and alerting infrastructure, drive incident response, and work closely with engineering to make sure we have deep visibility into everything that matters. We expect you to use LLMs heavily in your work — writing runbooks, generating alert configs, drafting postmortems, building dashboards — and we want someone who's already figured out how to make that feel natural. What you'll work on: Observability stack — Prometheus, Grafana, dashboards, alerting, and on-call workflows Incident response and postmortems — building a culture of learning from failures SLIs, SLOs, and error budgets — helping the team make data-driven reliability decisions Monitoring LLM-specific infrastructure: latency, token throughput, model error rates, cost attribution AWS infrastructure across our stack (Lambda, ECS, RDS, OpenSearch, CloudFront, etc.) CDK-based IaC and CI/CD pipelines as needed What we're looking for: Hands-on experience with Prometheus and Grafana (or similar — Datadog, Honeycomb, etc.) Strong instincts for what to instrument and what good alerting actually looks like Comfort debugging distributed systems across the full stack Experience owning on-call and incident response end to end AWS familiarity and enough IaC experience to get things done (CDK or Terraform) Someone who reaches for an LLM before writing boilerplate from scratch — and knows when not to Nice to have: experience instrumenting LLM pipelines, familiarity with TypeScript/Node.js, startup experience, or a background in security and compliance. Reach out at cj@parabola.io or apply at https://jobs.ashbyhq.com/parabola-io/75141699-0666-4baa-b03f....

SkySafe (https://skysafe.io) | Wireless Engineer (SDR) | San Diego, CA | REMOTE or HYBRID At SkySafe we build drone detection and tracking at scale. I am looking for a Wireless Communications Engineer with SDR expertise to join my team; I'm the hiring manager. What I'm looking for: * Background in wireless communications / signal processing theory and math. * Experience building software-based wireless modems. * Experience writing and optimizing software-defined radio code in C++ directly. What you'd do: * Implement all components of software defined modem systems from specifications and alongside our reverse engineering team (no RE experience necessary!) * Optimize existing software defined modem systems from both a theory and practice perspective - that is, make both conceptual improvements to algorithmic approaches as well as practical improvements to implemented code. * Architect and implement high-level improvements to SDR systems (scheduling, compute offload, etc.). We have a strong system in place for remote SDR work and are open to remote candidates for this role. If you're in San Diego and want access to an office with nice equipment, that's even better. This position requires access to technology which is controlled by US Export laws, so you also need to be an eligible US Person. What we have to offer: $145-200k. Fun, small team dynamic. Work with experts in adjacent fields. Startup environment with good work-life balance and limited red tape. Rapid iteration and feedback in the wild - make a change, deploy it, and see telemetry come back in the same day. Good equipment at the office. Apply: brian@ for a direct line, https://jobs.lever.co/skysafe for the formal route (we have some other roles I'm not the HM for listed there, too, if you're interested in the company!)

Red Balloon Security | Security Researchers, Software Engineers | NYC, Northern Virginia | ONSITE, HYBRID | Full-time, Interns (paid) | US Citizenship Required | https://redballoonsecurity.com We are a team of expert researchers and engineers focused on securing embedded devices. We work with partners across critical industries, and on government-funded research programs (think DARPA). "Full-stack" for us doesn't just stop at back end code; it means being comfortable with operating systems, firmware, and signals going over the wire. You'll succeed here if you are a quick learner who loves working independently on tough, technical problems nobody has ever solved before. Day-to-day tasks might include: * Tearing apart a device in our lab, reverse engineering its firmware, and finding security vulnerabilities * Developing an automated, robotic platform for hardware reverse engineering (custom hardware, vision models, user interfaces, etc.) * Hooking and patching RTOS kernel functions to execute defensive device integrity validation code, without violating real-time requirements * Building scalable servers for processing millions of device telemetry messages across thousands of concurrent connections * Maintaining open-source reverse engineering tools (like OFRAK https://ofrak.com) and cooking up fun demos for hacker conferences (like this web game we built for DEF CON in 2023 https://ofrak.com/tetris/) Our main office is in Manhattan, but we are building out a new office in Northern Virginia. US citizenship required. Bonus points if you have an active security clearance, or are willing to get one. Be sure to mention Hacker News in your application. https://redballoonsecurity.com/careers/

Strix (strix.ai, https://github.com/usestrix/strix)| Founding Engineer | NYC/SF We built the largest open-source AI pentesting framework — 25k GitHub stars, 80k active users, 15B LLM tokens processed daily, 1,800 pentests run per day. Two of us right now. You'd be the third. Looking for a founding-engineer engineer who's done 0→1 before and wants to own the architecture of something already at scale. You'll touch everything — infra, product, research tooling. Python/TypeScript stack, AI-native workflows, real security problems. Email hiring@usestrix.com — tell us something you've built and why it was hard.

Factory AI | AI, Fullstack, Frontend, Platform, Data, Product Engineers + GTM, Design, Operations | San Francisco, CA (+ NY, London for some roles) | ONSITE | Full-time | https://factory.ai At Factory we build Droids, autonomous software development agents that review PRs, implement features, run tests, fix incidents, and handle migrations for enterprise engineering teams. Droid is model agnostic and surface agnostic, and works across your CLI, IDE, Web/Desktop app, CI/CD, Slack, and Linear. Customers include Nvidia, Adobe, Adyen, Klarna, and Ernst & Young. We raised a $150M Series C at a $1.5B valuation, backed by Khosla Ventures, Sequoia, Blackstone, Insight Partners, NEA, and NVIDIA. We're hiring across the stack: - AI Engineer: agentic systems, LLM integrations, evals - Fullstack Engineer: platform, APIs, auth, billing, terminal UIs - Frontend Engineer: web and desktop apps (React, TypeScript, Electron) - Platform Engineer: infrastructure, sandboxing, CI/CD, cloud - Product Engineer: end-to-end feature ownership - Data Engineer: pipelines, analytics, telemetry at scale - Security Engineer / Research Engineer Stack: TypeScript, React, Node.js/Bun, Python, GCP/AWS, Firestore, Electron. We're also hiring in these roles: Enterprise & Mid-Market AEs, Solutions Engineers, Forward Deployed Engineers, Product Marketing, Product Manager, Product Designer, Partnerships, and Operations (RevOps, BizOps, People Ops, Recruiting). Some roles available in NYC and London. In-office 5 days a week in SF (walking distance to Caltrain). Catered lunch and dinner, full medical/dental/vision, 401(k). If you have strong opinions about how AI should actually work for production engineering systems at enterprise scale: we want to talk. Apply: https://factory.ai/careers

COMPANY: Wildkind ABOUT: Events business, with two market-leading outdoor events: Camp Wildfire and Camp Kindling. Founded in 2015 and growing rapidly, we aim to take our events worldwide to inspire, challenge and entertain over 1 million customers. ROLE: Performance Marketing Manager TYPE: Full Time. SALARY: £54,000 to £65,000. ONSITE: Hybrid, min two days a week in our London office. EXTRAS: Profit share + £1,000 learning budget + health and dental. DEADLINE: 18 May 2026. APPLY: https://wildkind.co.uk/careers/performance-marketing-manager...

E2B | SF, Prague, Remote | Eng, GTM, and Operations | https://e2b.dev/ E2B is building infrastructure for AI agents, and has quickly become the open source standard for agentic workflow sandboxes. Customers include Perplexity, Groq, Manus, and more. We are experiencing explosive growth and hiring for several technical and non-technical functions as we prepare to 3x the team this year. - Distributed Systems Engineer - Platform Engineer - Head of Finance - Business Operations Leader - Forward Deployed Engineer - Founding Designer - Security Engineer - DevRel Engineer - Customer Support Engineer - Product Engineer (frontend focused) - Product Engineer, AI For salary ranges, job descriptions, and to apply, visit https://e2b.dev/careers.

MongoDB | Senior/Staff/Lead Site Reliability Engineers (SRE) and Infra SWE, Multiple Teams | REMOTE (US) or HYBRID (NYC, Dublin) | Full-Time We are looking for experienced Site Reliability Engineers and Infrastructure Software Engineers to help build, scale, and secure the foundation of MongoDB Atlas, our globally distributed, multi-cloud database platform running across AWS, GCP, and Azure. SRE at MongoDB is a builder role. We are heavily focused on making the platform more scalable, resilient, secure and self-service. We have open roles (Senior, Staff, Lead) across several of our core Infrastructure teams: - Infrastructure Security (InfraSec): Building infrastructure security controls and security observability tooling leveraging eBPF and Linux security mechanisms. - Fabric: Building out service mesh, networking, and internal traffic routing. - Storage Layer Services: Building our next-generation disaggregated storage architectures. - Fleet Management & Deployments: Automating the lifecycle, deployments, and control planes of massive multi-cloud Kubernetes clusters. - Atlas Infrastructure: Building core infrastructure operations on hundreds of thousands of Linux servers. We're looking for engineers with a strong systems mindset who have: - 5+ years of experience in SWE, SRE, or similar roles. - Proficiency in at least one programming language: Golang, Rust, Python, C/C++ etc. - Deep understanding of Linux internals, networking, distributed systems, and/or Kubernetes. - Familiarity with at least one major cloud provider (AWS, GCP, or Azure). - A builder's mentality: you think about failure modes, observability, and operability alongside correctness. For any questions, or to apply directly (please mention HN) email: hani.benhabiles+hn@mongodb.com You can view our open roles at: https://www.mongodb.com/careers/jobs

CivAI | Onsite (Berkeley) | Full Time | https://civai.org/ CivAI is a non-profit that educates policymakers and the public about AI risks using live software demonstrations. As a member of technical staff, you will be responsible for conceiving of, and building end-to-end, the software demonstrations that are the core of what we do. These will explain both prosaic AI capabilities and more nascent ones that are fast approaching. - Stack: SvelteKit, Python - Salary: $125-200k - https://civai.org/jobs/member-of-technical-staff

At SentiLink, we stop identity fraud at scale. Our products protect banks, fintechs, marketplaces, and leading financial institutions from synthetic identity fraud, identity theft, and emerging threats — analyzing millions of applications while keeping real users moving fast. We’ve seen tremendous traction and are growing extremely quickly. Our real-time APIs have helped verify hundreds of millions of identities, starting with financial services and rapidly expanding into new markets. SentiLink is backed by world-class investors including Craft Ventures, Andreessen Horowitz, NYCA, and Max Levchin. SentiLink supports a variety of ways to work, ranging from fully remote to in-office. We operate as a digital-first company with strong collaboration across the U.S. and India. We maintain physical offices in Austin, San Francisco, New York City, Seattle, Los Angeles, and Chicago in the U.S., and in Gurugram (Delhi) and Bengaluru in India. If you’re located near one of these offices, we would love for you to spend time in the office regularly. Some roles are hybrid or in-office by design. For example, our engineering team in India works primarily from our Gurugram office. We’re a small, high-impact team solving one of the most interesting and adversarial problems in fintech: how do you build systems that reliably determine whether a real human is on the other side of a financial transaction? We’re hiring across Engineering (Full-stack and Infra) and Data Science / ML roles. Hiring at Manager level as well as mid-level/Senior levels. We’re language-agnostic and hire for fundamentals. Across the team you’ll see: • Python, Go, Rust, Scala • PostgreSQL, Snowflake • Kafka, Redis • Terraform, Kubernetes • ML: XGBoost, PyTorch, Feature stores, real-time scoring pipelines If you love solving complex distributed systems challenges, building customer-facing ML products, or working on detection systems that must be both high-precision and low-latency, you’ll fit right in. Roles are here: https://jobs.ashbyhq.com/sentilink?utm_source=hacker_news If you have questions, feel free to reach out directly at liz.woodfield at sentilink dot com.

Global Partners — Senior Director, Data Engineering Location: Waltham, MA — Pay Range $182,300.00 - $291,500.00 Fortune 500 energy company (fuel distribution, terminals, retail). Hiring a Senior Director, Data Engineering to lead our data platform (Snowflake, dbt, Dagster, DataHub), team, and strategy. Actively hiring- Apply: https://careers.globalp.com/senior-director-data-engineering...

Formal | Multiple Positions | REMOTE | Full-Time | $100k - $250k + Equity We're building a new computing stack with formally verified data, memory, and resource isolation between executions for instant, truly elastic global compute. This includes designing and building a production language in a way that's never been done before, with complete, mechanized formal specifications and a certifying compiler from the start. Our immediate goals include an alternative to eBPF and building the world's first serverless networking infrastructure. We are VC funded with runway for multiple years. The team is composed of PhDs from Stanford, UW, OSU, and Brown, advised by professors from MIT and UWaterloo. We are currently hiring for the following positions: - [1] Staff Software Engineer: Compilers, Programming Languages, and Verification ($175k - $250k + ≥ 0.4%) - [2] Formal Verification Engineer: Formal Methods and Programming Languages ($120k - $200k + ≥ 0.2%) - [3] Software Engineer: Compilers and Programming Languages ($100k - $175k + ≥ 0.1%) - [4] Formal Methods PhD Intern: Formal Methods and Programming Languages ($10k / month) Please see [5] for general information. Apply via our job board [6]. [0] https://formalstack.com [1] https://formalstack.com/jobs/05-2026/staff-software-engineer... [2] https://formalstack.com/jobs/05-2026/formal-verification-eng... [3] https://formalstack.com/jobs/05-2026/software-engineer-v.pdf [4] https://formalstack.com/jobs/05-2026/formal-methods-phd-inte... [5] https://formalstack.com/jobs/info.pdf [6] https://jobs.gem.com/formal

Hevy | Lead React Native Engineer | Barcelona, Spain | Hybrid | Relocation Hevy is a multiplatform weight lifting tracker that lets athletes log their workouts, track progress and be part of a community of gym athletes. We are a bootstrapped fitness and technology company operating out of Barcelona, Spain. Relocation to Spain: full relocation package, work permit + residence permit for spouse, hybrid (2-3 days in office/week), competitive salary + performance bonus. https://www.hevyapp.com/careers/

AveryIQ | Austin, TX | Engineering & Sales | averyiq.com AveryIQ is a completely vertical, all-in-one agentic property management firm. We are building our own software that can answer tenant questions, do payments and accounting, and handle repairs. We run operations for many multifamily rentals around Texas, and scaling nationwide. - Our stack is Bun / Hono / Next / Expo - We are YC-backed (W'24) - Strong engineering/builder culture. - Prefer Austin in-person, but open to extremely talented remote folks in timezones adjacent to CST. https://averyiq.com/careers

COVU | Data Engineer, Full Stack Engineers (Sr & Staff/Lead), Sr. Product Manager | San Francisco (Hybrid) or REMOTE (US) | Full-time COVU is an AI-first insurtech startup rebuilding the 20-year-old legacy infrastructure of the $365B+ insurance distribution industry. We recently announced our $16M funding round (bringing our total to ~$50M) and launched COVU OS. We aren't just slapping an "AI wrapper" onto old software; we built a task-native orchestration layer from scratch. COVU OS converts messy, unstructured insurance workflows (emails, PDFs, manual triage) into defined tasks, dynamically routing them to the right execution layer—whether that's an AI agent, a licensed human professional, or an offshore team. We are a scrappy, execution-focused team of builders. We heavily encourage using AI tools (Cursor, Copilot, Gemini) in your daily workflow to ship code faster. If you hate spending months in "discovery" and prefer to just build and own production systems end-to-end, you will fit right in. The Stack: Data: Snowflake, dbt, Airflow, Python Product: TypeScript, React, Node.js / Python backends, Cloud Infrastructure Open Roles: Staff Full Stack Engineer (Technical Lead): You will be a foundational technical leader shaping the architecture of COVU OS. Expect deep, architecture-level design work paired with heavy, hands-on IC contributions. Sr. Full Stack Engineer: You will own complex product surfaces end-to-end, building out the agentic orchestration layer, user interfaces, and enterprise API integrations. Data Engineer(Remote): You'll be the primary builder of our "Golden Policy Journal," transforming highly complex, messy carrier data into our single source of truth using Snowflake, dbt, and Airflow. Sr. Product Manager (COVU OS): You will own the roadmap for our core operating system. We need a highly technical PM who can dive into the weeds of agentic workflows and write specs that engineers actually want to read. To apply for any of these roles, visit: https://www.covu.com/careers

Aqora | Paris, France / US / Remote (EU) | Multiple roles | https://aqora.io Aqora is the "Hugging Face for quantum computing". We host datasets, benchmarks, and use-case challenges, plus the orchestration layer to run quantum algorithms and workflows across hardware backends, so results are reproducible, comparable, and actually move the field forward. We grew out of the QuantX hackathons at École Polytechnique and now run competitions and a public datasets hub for partners across pharma, finance, energy, and defense. We're hiring: * Senior Full Stack Software Engineer (Rust/React). Build the platform end to end: datasets hub, challenges, leaderboards, and the workflow engine that orchestrates quantum jobs across backends. You own features from schema to UI and care about developer experience. Bonus: data, ML, or research-platform experience. * Quantum Computing Expert. Design challenges, curate datasets, define benchmarks, and shape how algorithms and workflows run on the platform. Work directly with enterprise partners to translate their problems into something the community can solve. PhD or equivalent depth in quantum algorithms, QML, or optimization. * Chief Commercial Officer, US. Own US go-to-market end to end: strategy, enterprise pipeline, team build-out. You've scaled commercial functions at a deep-tech, dev-tools, or research-platform company. Based in the US. * Head of Marketing. Positioning, demand gen, and brand for a category still being defined. B2B technical marketing background required; quantum experience welcome but not necessary, curiosity is. * Product Manager. Drive the roadmap across the datasets hub, challenges platform, benchmarks, and workflow orchestration. Strong technical instincts and experience shipping developer or research-facing products. * Sales, EU. Enterprise sales into R&D and innovation teams across Europe. Long, technical sales cycles, consultative selling, comfort talking to PhDs and procurement on the same day. EU-based, remote. Reach out to jannes[at]aqora.io with a short note on why this problem space and what you've built or sold before.

GAIM | Onsite (Malmö, Sweden / Copenhagen, Denmark) | Full Time | gaim.com GAIM is a marksman training simulation game, we're expanding our development team with a Rust programmer to help work with our next generation backend to support on-the-go analysis of their performance in the simulator. Prior gamedev experience is a bonus but not required. Email in profile, or reach out over linkedin: https://www.linkedin.com/in/jharasym/ Due to export controls of this kind of simulator, applicants must be EU citizens.

SpruceID (YC W21) | REMOTE (US-Based Preferred) | Full-Time | spruceid.com Spruce lets users control their data across the web. Instead of users logging into platforms, we believe platforms should request to access data vaults controlled by users. The demand for trusted digital ID is accelerating as AI deepfakes begin to destroy most of the ways we use to verify identity today. How private or secure is it to hold your driver's license or passport up to a webcam to get a bank account? Was it ever private or secure? Stable diffusion can break so much of this already. Society will need trusted digital IDs and credentials. Our mission is to allow them to be controlled by individuals, with safeguards to prevent descents into surveillance states and checkpoint societies. We are the main implementers of category-defining initiatives such as the digital ID program for the California DMV, and the verifiable digital credentials program in Utah. We are private sector participants in NIST's National Cyber Security of Excellence initiative for privacy-preserving digital ID. We are hiring skilled engineers who care about making a real impact in improving public services, digital autonomy, and user privacy for the world. We work closely with public sector agencies, and have high regard for public servants. We have a strong engineering and customer-oriented culture, and are not simply a SaaS product or AI wrapper. Our roles are not for the faint of heart: you will be expected to work hard and learn a lot in this role. Our engineers are ambitious to get outcomes for our customers and their constituents. On any given day, they may write great Rust/C#/TypeScript, deal with mainframe dumps, read policy documents, respond to technical RFIs/RFPs, manage on-prem environments, implement new NFC + Bluetooth protocols in Swift/Kotlin, create CI/CD processes that enforce W3C accessibility guidelines and i18n requirements, rewrite lost specs from disassembled binaries, figure out stablecoin payments, and design new protections for public key infrastructure. It is a team effort, and people with T-shirt shaped skills are able to collaborate and learn a ton from each other every day. We are interested in candidates who want to be proud of the meaningful impact they make for society, even if it takes time to get right. This is not the right job for someone who wants to "join a cool new AI startup" that implodes or exits in under a year. See our roles here: https://jobs.ashbyhq.com/spruceid

Krea; Fulltime; Onsite, San Francisco, CA, USA. I'm the cofounder of Krea (https://www.krea.ai/). We build creative tools and large-scale infrastructure for multimedia teams. Users range from hobbyists to world-renowned creatives: architects behind the World Trade Center or creative teams at Apple. We treat research, engineering, and creativity as first-class citizens; we want engineers for our research, product, and supercomputing teams. What we value (staff writings): - AGI: https://www.matthewnewton.com/blog/arc-challenge-diffusion - Diffusion research: https://re-n-y.github.io/devlog/rambling/steering/ - Pragmatic LLM reflections: https://maxemitchell.com/writings/i-read-all-of-cloudflares-... - Low-level computing: https://gab-menezes.github.io/2025/01/13/using-the-most-unhi... - Open-sourcing our research: https://www.krea.ai/blog/flux-krea-open-source-release Some of our projects: - Large-scale multimodal model training (e.g. distributed training, 1000+ k8s GPU clusters, petabytes of data pipelines, ...) - WebGL2/WebGPU for node-based tools (SideFX Houdini) & CRDTs/OTs for collaboration - Cross-service metrics, tracing, and observability - LLM-driven JS bundle optimization and testing --- Apply via `ssh apply@krea.engineering`

Anvil | Various Roles | Greater Boston | HYBRID | Full-time | $140k-$180k + 0.5-2.5% equity We're a seed stage (VC backend) company building a vertically integrated design and manufacturing platform for precision mechanical parts. We are developing our own CAD/CAM software running on top of our own manufacturing facility. The team has previously developed CAD kernels, design software, and autonomous robotic manipulators, and comes from Amazon Robotics, Siemens, nTop, and Vicarious Surgical. Most design and manufacturing software companies treat the factory as a black box and optimize geometry in isolation. Our bet is that the only way to really bring software and ML into design and manufacturing is to own the full process ourselves. The platform you'd help build includes: customer-facing design software, the ML engine that turns CAD files into machine instructions (G-code), the simulation layer, and the shop floor operations themselves. We are looking for someone independently driven who wants to operate like a founder. You'd own architecture, help shape the company's vision, and build a product from the ground up. If you've worked on cloud infrastructure, distributed systems, CAD/CAM software dev, geometry kernels, robotic perception, motion control, or spent time on a shop floor, we'd like to talk. We are open to sponsoring visas for the right candidate. Roles: Founding Computational Geometry Engineer: Hybrid B-rep + SDF kernel work. STEP AP242 ingestion, B-rep surgery, feature recognition, and the geometry layer underneath our DFM and CAM pipelines. If you've worked on Parasolid, OCCT, nTop, or shipped anything that touches BRep diff, parametric replay, or differentiable geometry, we want to talk. C++ and Python. Founding Full-Stack Engineer: Someone who can take ownership of the reliability, automation, and evolution of our core systems that tie into our CAD/CAM software, internal shop-floor systems. You’ll work across the stack, with a strong emphasis on backend, infrastructure, and system-level engineering, to strengthen the foundations that everything else runs on. This role is for someone who enjoys digging into complex systems, building the architecture and tooling to keep them running reliably (including the frontend). Email me directly: hiring [at] anvil.co, mention HN. I reply to everyone.

Flowstate | https://flowstate.inc | Senior/Staff Product Engineers | Solution Engineer | Growth Marketing | Account Executives AI spend is skyrocketing in the workplace, and leadership can’t attribute, can’t classify, can’t forecast, can’t control that spend accurately. Flowstate is the insights & governance layer for AI workforces. Location: London, New York. https://www.flowstate.inc/careers/

Foxglove | Onsite (San Francisco) + Remote | Full Time | https://foxglove.dev/ Foxglove is the leading data infrastructure & observability platform for robotics & physical AI. Prior experience in the autonomous vehicle or robotics industry is a bonus, but not required. Many open roles: - Senior Rust Engineer - Senior ML Engineer - Senior Frontend Engineer (Visualization, WebGL, WASM) - Solutions Engineer, Data Infrastructure - Product Manager, Data + ML - Head of Product Marketing - Account Executive Email in profile. https://foxglove.dev/careers

Vivodyne | Senior Full Stack Software Engineer | Full time | Onsite (5 days) SF Our robots grow thousands of human tissues and test them at scale, so we can predict which medicines will work safely before they reach patients. You will build polished, high-performance web applications using React with FastAPI on the backend and Postgres as a database. https://job-boards.greenhouse.io/vivodyne/jobs/5120631007

Innolitics | https://innolitics.com | Medical Device AI/ML Engineer | REMOTE | Full-Time | $120,000 - $150,000 + benefits | US Only | Innolitics helps companies build and FDA-clear healthcare AI. Requires at least 3 years of full-time experience in AI/ML development work. Apply here: https://innolitics.com/join/medical-device-ai-ml-engineer/

LiveKit|http://livekit.io/| VoiceAI | webRTC | Remote | Full Time LiveKit is building the infrastructure layer for the voice-driven era of computing. Our platform gives developers everything they need to build, test, deploy, scale, and observe agents in production. Hiring: >> Forward Deployed Engineer: https://jobs.ashbyhq.com/livekit/b889ef16-4d5d-4b71-b0a9-682... >> Developer Success Engineer: https://jobs.ashbyhq.com/livekit/fdff28df-2245-43c1-bb09-430... >> Data Engineer: https://jobs.ashbyhq.com/livekit/10c672df-37aa-412e-8011-340... >> Staff Security Engineer: https://jobs.ashbyhq.com/livekit/efc06ff8-37c4-473e-8de8-bbb... >> Sr Software Engineer, Agent Platform: https://jobs.ashbyhq.com/livekit/f152aa9f-981c-4661-99d3-683... Co-founders: Russ d'Sa https://www.linkedin.com/in/russelldsa/(CEO/Cofounder) & David Zhao https://www.linkedin.com/in/davidzhao/(CTO/Cofounder) Check out our blog: https://livekit.com/blog Our other roles: https://livekit.com/careers?utm_source=1bpyr8q375

Freeform (http://freeform.co) | Software Engineers | Full-time | Onsite | Hawthorne, CA (Los Angeles County) Freeform builds AI-native manufacturing systems that unify software, hardware, and physics to produce industrial-scale parts at the speed of human ideation. By treating manufacturing as a single integrated system, we unlock a new era of innovation where complex hardware is designed, built, and scaled without limits. This isn’t just an improvement; it’s a leap forward in how complex metal parts are made, with the ability to revolutionize industries like aerospace, defense, automotive, energy, and beyond. We are backed by top VCs including NVIDIA’s NVentures, Founders Fund, Threshold Ventures, and Apandion. It’s a small, tight-knit team and you’d have the opportunity to own significant and impactful greenfield projects throughout the entire development lifecycle and much more. Our software team comes from the likes of Google, SpaceX, and Apple, and believes in taking a first principles approach to solving hard problems. A glimpse into our software landscape - https://www.youtube.com/watch?v=nFWQArUkd5I Our feature in TechCrunch announcing our $67M Series B Raise! https://techcrunch.com/2026/02/19/freeform-raises-67m-series... Current open positions: + Principal Software Engineer - https://grnh.se/27ajbj9k3us + Senior Software Engineer - https://grnh.se/m2l08z853us + Senior Software Engineer (Embedded) - https://grnh.se/hb838bth3us + Software Engineer (Full Stack Enterprise) - https://grnh.se/26cvuixl3us + Software Engineer - https://grnh.se/hnwff2s23us

Capital Normal University | Beijing | Faculty/Professors in AI | ONSITE | Full-Time The College of AI at CNU is hiring professors (Assistant to Full) in CV, NLP, and ML Theory. We offer competitive international salary + large multi-year research grants. Location: Haidian District (near Baidu/ByteDance/MSRA). Application: Send CV & 3-5 pubs to t116@cnu.edu.cn. No hard deadline.

At Tether (https://tether.io/) we're hiring! We envision a world where technology enables financial freedom, educational empowerment, energy sustainability, and data sovereignty. All of our roles are fully remote, worldwide. Apply now: - Mobile Developer (React Native): https://careers.tether.io/o/react-native-developer-wallet-te... - Lead Mobile Developer (React Native): https://careers.tether.io/o/lead-software-engineer-mobile-de... - AI Inference Engineer QVAC: https://careers.tether.io/o/ai-inference-engineer-qvac-100-r... - Fullstack Developer: https://careers.tether.io/o/senior-fullstack-developer-100-r... - Frontend Developer: https://careers.tether.io/o/senior-frontend-developer-kyc-wo... - Backend Developer: https://careers.tether.io/o/senior-backend-developer-nodejs-... - Technical Product Manager (QVAC/ AI): https://careers.tether.io/o/technical-product-manager-qvac-1... - Technical Product Manager (Hadron/ Tokenization): https://careers.tether.io/o/technical-product-manager-hadron...

AirOps | Engineering, GTM | SF · NYC · Montevideo Search is being rewritten — buyers ask ChatGPT, Claude, and Perplexity, and the brands cited in those answers win. AirOps is the runtime marketing teams at Ramp, Chime, Carta, and Rippling use to earn those citations: orchestrated LLMs, RAG, JS/Python code steps, evals, human-in-the-loop. Backed by Greylock, Unusual, Wing, Founder Collective. jobs.ashbyhq.com/airops

Confidential Series B fintech | Senior SRE | REMOTE (US) | Full-time We're hiring a US-based senior SRE to help support our feature teams. We are predominately an API company in the b2b fintech space. Our stack is golang services running on EKS in AWS. Postgres, Datadog, Github, and some growing ML and AI capabilities. Leaning into agentic spec-driven development. apply at: sixthirteen.jobs@gmail.com

Baton | San Francisco, CA (Hybrid) and Remote | Full-Time Baton (baton.io) is Ryder's in-house product development group focused on harnessing emerging technologies to redefine transportation and logistics. With $10B in freight under management, our technology reaches every part of the U.S. economy. We design and ship category-defining software that enables Ryder and its 50,000+ customers—including some of the world's most well-known brands—to plan and execute freight intelligently, efficiently, and cost-effectively. Our work includes everything from customer-facing software to the data platform that will power the next era of innovation at Ryder. Baton's mission: enable supply chain on autopilot. Ryder acquired Baton in 2022 to power its next wave of digital products. We operate at startup speed, with Fortune 500 reach. If you have a passion for solving complex problems and creating impact for the engine of the American economy, you'll love it here. Current openings at Baton: * Senior Software Engineer - Full Stack, Technical Lead (hybrid, $200,000 - $250,000): https://grnh.se/wkmk2d0e7us * Group Product Manager, Platform (hybrid, $220,000 - $270,000): https://grnh.se/bd8io8wp7us * Head of Technical Operations (hybrid, $180,000- $230,000): https://grnh.se/gw86i0tc7us * Senior Product Designer (hybrid, $140,000 - $190,000): https://grnh.se/2nlrivyp7us * Software Engineer - Infrastructure, Data Platform (hybrid, $162,000 - $216,000): https://grnh.se/d6s6od6w7us * Product Marketing Manager (remote, $90,000 - $140,000): https://grnh.se/r7unwhdx7us * Product Intelligence & Data Analytics Manager (remote, $90,000 - $140,000): https://grnh.se/lyd76nke7us

Vornoy | Remote (US) | Full-time | Software Engineer | $90k-$110k We aggregate marketing and financial data into dashboards. Heavy backend focus on ETL, data pipeline, modeling, and normalization. Front end is straight forward React. Looking for skills in Python, React, FastAPI, Postgres, ClickHouse, Spark, Kafka, AWS, MCP, RAG, OLAP. Familiarity with finance domain a big plus. If you like the idea of wrangling complex data sets send me an email: john at vornoy.

Qualcomm | Staff Engineer | On-site | San Diego Qualcomm is hiring! Looking for a Python developer to join our engineering org. You'll build mission-critical tooling to support Qualcomm's product delivery and release pipeline. Reach out to learn more! https://lnkd.in/gTmCiXex

Cardog | Toronto, ON | Remote (Canada) | Full-time AI-powered automotive platform — we're building the infrastructure layer for vehicle data, from VIN decoding to market intelligence. Looking for: iOS/Mobile, Full-Stack, AI/ML, Data Engineers Stack: React Native/Expo, Next.js, Hono, Cloudflare Workers, PostgreSQL, TypeScript everywhere https://cardog.app/careers

flaconi | Germany / Berlin | Full Time | https://www.flaconi.de | e-commerce flaconi is an online e-commerce for beauty products, founded in 2011 in Berlin. We are active in 12 countries and expanding to more. We're primarily on AWS, use React, Next.js, Vercel for web, Flutter for our mobile app - you will find more details on the job listings. For exceptional candidates, visa sponsorship is also a possibility. We do hybrid, but fully remote is also a possibility within Germany. 1. Staff Software Engineer - Frontend - €85.000 - €105.000 EUR - https://grnh.se/kke6q552teu - we will very likely work together. Happy to answer questions. 2. QA Engineer Mobile - €60.000 - €83.000 EUR - https://grnh.se/ad3i2y62teu 3. Full Stack Software Engineer - €60.000 - €83.000 EUR - https://grnh.se/qf3dcpf2teu

Mapbox is hiring a Geospatial Data Engineer on our Boundaries team. We use postgis, trino and iceberg to build and validate topologically accurate geodata. Full job description is here: https://jobs.ashbyhq.com/Mapbox/2fc1e9b6-8d13-4cb6-8271-a2f6...

Temporal Technologies | Multiple positions in United States - WORK FROM HOME | FULL-TIME | Temporal offers an entirely new way to build scalable and reliable applications. Temporal enables developers to focus on writing important business logic, and not on managing state or worrying about the underlying infrastructure. Backed by top VC firms, we have built a team of professionals from various successful start-ups and well-known technology companies. We're looking for senior level engineers for multiple roles - https://www.temporal.io/careers FEATURED ROLES: Senior Software Engineer, Cloud Enablement → https://grnh.se/2wls4ysb7us Senior Software Engineer, Release Engineering → https://grnh.se/g7ybar8w7us Senior Engineering Manager, Cloud Enablement → https://grnh.se/y8lod82n7us Staff Software Engineer, AI SDK → https://grnh.se/gb3g38ho7us Staff Software Engineer, DevProd (Infrastructure Observability) → https://grnh.se/wik4wjti7us Staff Software Engineer, Builder Tools → https://grnh.se/lrjcxk0h7us Senior Staff Software Engineer, Infrastructure → https://grnh.se/l2ct6nkv7us Staff Software Engineer, Traffic → https://grnh.se/hd67wcru7us US benefits include: Unlimited PTO, 12 Holidays + 2 Floating Holidays, 100% Premiums Coverage for Medical, Dental, and Vision, AD&D, LT & ST Disability and Life Insurance , Empower 401K Plan, Additional Perks for Learning & Development, Lifestyle Spending, In-Home Office Setup, Professional Memberships, WFH Meals, Internet Stipend and more! Benefits outside the United States vary by country.

ChainSecurity | Blockchain Security Engineer | Full-time | INTERNS , HYBRID/REMOTE, Zurich, Switzerland | VISA possible | https://chainsecurity.com/ ChainSecurity is a young and innovative cybersecurity company that operates in the blockchain and cryptocurrency space. Our mission is to make the blockchain space secure and trustworthy for people, companies, and governments alike. We are proud of our security experts from the renowned universities ETH Zurich, EPFL Lausanne and others. We are trusted by 100+ blockchain companies and established corporations with security audits and services. We have secured complex systems for top blockchain clients, such as decentralized finance (DeFi) projects, and multinational organizations, such as banks and industrial consortia. A ChainSecurity Auditor will review the most complex blockchain projects to find vulnerabilities which no-one else can. By using state of the art tools, expert knowledge and a deep understanding of the fundamentals, we secure projects handling billions, often forming the foundation in the new paradigm of an open financial system. Your Responsibilities: * Work directly with the developers of the most successful teams in the blockchain industry to audit their code and secure their products * Contribute to our security tools and create new ones in collaboration with our internal research team * Conduct security research and publish your findings Requirements: * Strong background in software engineering, focused on security relevant areas and most importantly being able to reason about complex code * Experience with penetration testing, vulnerability scanning, threat modeling or similar is a plus * Good knowledge of cryptography * Proficiency with Linux and Git * Good written communication skills * Fluent in OOP programming language Bonus Points: * Formal Verification, White Box, Vulnerability Scanning * Solid Blockchain Knowledge * Consensus Algorithms Join us here: https://www.chainsecurity.com/jobs/blockchain-security-engin... Questions about the role? Contact: jobs@chainsecurity.com

eventfirst | Senior Full-Stack Engineer | Berlin, Germany | REMOTE (CET) | Full-time We are applying AI to organize corporate events. We are looking for a senior engineer with at least ten years of full stack experience, a strong focus on product and UX, and optionally some experience building LLM based products. Currently we are focussed on building tooling that enables us to capture domain knowledge from experts to streamline prompt creation and evaluation. Our tech stack is Typescript, React, Next.js and Tailwind. On the backend we use Drizzle with Neon, deployed and monitored via Vercel. Please note that we are working in the CET timezone. We have pre-seed funding from a major US VC and are experienced founders. You’ll be working alongside the founders (ex-Apple, ex-Airbnb, ex-Tulip, ex-Tourlane) and will have a chance to shape the company, product and of course the engineering culture. Apply here: https://eventfirst.jobs.personio.com/job/1646275

Kraken Tech | Senior Software Engineer - AI Foundations | London, Paris, Berlin, Tokyo, New York, Tel Aviv, Remote | Full Time | https://kraken.tech Help us use technology to make a big green dent in the universe! Kraken powers some of the most innovative global developments in energy. We’re a technology company focused on creating a smart, sustainable energy system. From optimising renewable generation, creating a more intelligent grid and enabling utilities to provide excellent customer experiences, our operating system for energy is transforming the industry around the world in a way that benefits everyone. You’ll work in the AI Foundations team which exists to enable AI across the entire company. We build the shared platforms, tooling and patterns that enable engineering & product teams to safely, reliably and efficiently use machine learning and generative AI across the business. This is not a research lab. This is a delivery-focused team that sits at the intersection of platform engineering, applied ML and developer enablement. Apply through the link below, or send me an email to omer.korner at our domain name. https://jobs.lever.co/kraken123/d57f5f0e-97e5-4d64-a78c-ff12...

Lantern | Software Engineers (Python, Full-Stack) | NYC (Onsite) | Full-time | withlantern.com Lantern is building AI-powered revenue intelligence—autonomous agents that turn cold outreach into warm conversations. We detect buying signals across your tech stack, prioritize opportunities, and help B2B sales teams focus on deals that actually close. We're early, agentic-first, and moving fast. Senior Software Engineer: You'll own complex technical problems end-to-end—translating customer needs into scalable architecture, optimizing AI model efficiency through prompt engineering, and shipping features that directly impact how revenue teams operate. We want bold ideas and people who push boundaries. Junior Software Engineer: You'll work across our stack (Python, FastAPI, Next.js, React) alongside senior engineers, contributing to real features from day one. Great fit if you're hungry to learn, ship fast, and grow with a startup building cutting-edge agentic systems. New Grad Software Engineer: Entry point for recent grads excited about AI and agentic systems. You'll get hands-on experience with our modern data stack (Postgres, ElasticSearch, ClickHouse, DuckDB), Kubernetes/AWS deployment, and Temporal.io workflow orchestration while shipping production code. This role is based in our Manhattan office (4 days/week in-person). Full health and dental coverage. Apply: https://forms.gle/kEi5MDDiaJKdyN3fA or email maksym at withlantern.com with your resume.

vvd | Design Engineer | Remote (work from anywhere) | Full-time | React, TypeScript, Next.js https://vvd.world We’re building tools for storytellers, worldbuilders, writers, and creators. We’re looking for a Design Engineer who can design and build polished product experiences end-to-end. You should care deeply about taste, interaction, motion, and frontend craft, but also understand enough about APIs, auth, and data flow to avoid getting blocked. We’re AI-native, but not trying to replace human creativity. We use tools like Cursor and Claude Code as leverage to move faster while keeping a high quality bar. Strong fit if you’ve shipped real things, can go from rough idea to polished implementation without waiting for perfect specs, and have built interfaces that feel good, not just functional. Apply: https://apply.workable.com/vvd/j/43FDC8C9AA/

Conductor | San Francisco, ONSITE | Full-time Conductor lets you run a team of coding agents on your Mac. We've grown 10x since January, and just recently announced our $22m Series A. We're a small team looking for exceptional software engineers and designers. https://www.conductor.build/join-us

Nylas | Product Manager, Product Marketing Manager, FP&A Analyst, BDR | REMOTE (US or Canada) | Full-Time | https://www.nylas.com Nylas provides APIs for email, calendar, and contacts, connecting to Gmail, Microsoft, IMAP, Zoom, Teams, and 250+ providers. Tens of thousands of developers use us to reach millions of their users. We're hiring across product, marketing, finance, and sales. Several of these roles benefit from someone who's a builder at heart. You don't need to be writing code, but you're using your favourite coding agent to experiment and solve problems day to day. High autonomy, close to customers, creative thinking rewarded. 100% remote in North America with regular in-person offsites. Product Manager | Remote US or Canada (pref: Toronto, Denver) | $120K to $160K USD / CA$120K to CA$160K. https://www.nylas.com/company/jobs/?ashby_jid=f4fdb62a-8a7e-... Product Marketing Manager | Remote US or Canada (pref: Toronto, Denver, NYC, Bay Area). US: https://www.nylas.com/company/jobs/?ashby_jid=ebcf30ab-c9d1-... Canada: https://www.nylas.com/company/jobs/?ashby_jid=2acb49b8-4e50-... FP&A Analyst | Hybrid Toronto (~3 days/week) | CA$75K to CA$100K. https://www.nylas.com/company/jobs/?ashby_jid=57ea11b2-8da0-... BDR | Remote US (NY or Denver) | $65K to $100K USD OTE. https://www.nylas.com/company/jobs/?ashby_jid=bb13733d-da47-... BDR | Remote Toronto | CA$70K to CA$90K OTE. https://www.nylas.com/company/jobs/?ashby_jid=18bed42c-08cc-...

yeet | Chicago, IL / Remote | Full-Time Building a dynamic runtime on top of the Linux BPF sub-system. Looking for extremely talented / passionate Rust developers / Backend Engineers with a deep interest in Linux internals, Distributed Systems, Dev Tools, Great Developer Experiences and Systems programming. Experience working with distributed systems AND / OR writing highly-concurrent, performant multi-threaded Rust is a must. Feel free to tell us all about your favorite GNU core utilities / Linux system calls / kernel sub-systems at: work [at] yeet.cx You can visit us at https://yeet.cx/ Or try our interactive sandbox at https://yeet.cx/play For more jobs check out https://yeet.cx/careers

tiun (https://tiun.io) | Senior Marketing Engineer | Zürich or Remote (Europe) | FULL-TIME tiun is the commercial backend for SaaS, AI, and digital products: auth, payments, and customer data in one system, replacing the Stripe + Auth0 + Postgres + analytics stack. We're hiring a Senior Marketing Engineer to own how tiun shows up in the world. You'll produce the brand assets and motion work that make us feel like serious infrastructure, run our AI search visibility. You're a builder, not a manager. You've marketed to technical audiences. You've shipped polished video and motion work, not just briefed agencies. You have opinions about AEO vs SEO. You write well. 3–5 years experience. CHF60k–CHF85k email nikolaos@tiun.app

MiLaboratories | Senior Software Engineer (Biologic Discovery) | Bilbao, Spain | ONSITE | VISA | RELOCATION MiXCR is the standard for immune analysis, cited in thousands of papers. Platforma is the OS on top — bioinformatics as self-serve, interoperable "blocks" for biologic discovery. 5 of the top 10 pharma (Moderna, Pfizer, others) run discovery with Platforma today. Goal: 10 of 10 by year-end. Hiring 4–5 engineers in 90 days. Our tools are in the methods of approved cancer immunotherapies and COVID vaccines reaching millions. The next paper citing us could be the next drug. We merged frontend, bioinformatics, and data into one team. AI killed the silo wall. Bioinformaticians who leaned into engineering and engineers who leaned into biology now ship at multiples. WHAT YOU'D BUILD - Discovery pipelines: raw sequences → pre-IND leads. Antibodies, biomarkers, workflows real scientists use. - The SDK for comp scientists: TypeScript, Tengo (a Lua-like workflow DSL — yes, you'll learn it), Rust. - The data layer: thousands of formats reduced to one. PFrames, Parquet, DataFusion, lazy columnar everything. WHAT WE'RE LOOKING FOR - Strong TS in 100k-line monorepos (pnpm, Turbo). Polars > pandas. Node ≥22. - Bioinformatics exposure or appetite to learn it month one. We can teach VDJ recombination; not curiosity. - Tolerance for sparse docs and niche DSLs. "Fix the SDK, don't work around it." OFFER - €90–120k base, real ESOP, ARR-tied bonus — when we grow, you grow, in cash, this year. - Bizkaia Special Impatriate Regime: ~15–20% effective tax. Beats London / Berlin / Amsterdam net. - Visa, relocation, soft-landing. No HR, no take-homes. Direct line to engineering. - Bilbao: ocean, mountains, Michelin, low cost of living, highest quality of life. Onsite — context-sharing needs same room. Email: stanp@milaboratories.com (CEO). Subject "HN", include GitHub. I reply personally. Tell me about a scientific CLI you wrapped, a plugin SDK you built, or a Polars query that survived 50M rows.

fal | San Francisco, CA / Remote | Full-time We are on a mission to build world’s first generative media platform for developers. We are running inference on tens of thousands of GPUs, and looking for people (in all functions) to help us scale it to hundreds of thousands. Featured Roles: - Distributed Systems Engineer, https://fal.ai/careers/4009192009 - Virtualization Engineer, https://fal.ai/careers/4146037009 - ML Performance & Systems Engineer, https://fal.ai/careers/4009191009 Remaining: https://fal.ai/careers

Startup working on AI Healthcare solutions (plus some random experiments) | REMOTE(US, Pacific time zone) | Full time and project based Full time engineering role (Remote, US person required; Pacific time zone) Stack: C#, Python, Gemini API on Windows, lots of legacy systems/constrained enterprise environment. Health systems experience preferred. Understanding of cost effective, reliable LLM API use. Should be flexible: do PM-like work with less-technical client domain experts, solve problems end to end, willing to data cleaning and detailed work for client goals and security/compliance gruntwork, even when it's not technically elegant. Self motivated, willing to understand legacy and undocumented codebases, but also willing to take instructions. Ideal candidate has real (pre-Claude Code) experience, but is ready to do fast iteration in post-AI world, while actually reading what the AI does. We're ok if your stack is different, if you're both technically mature and up to date on modern fast-turnaround AI-based development. Probably in the 5+ year experience range. REMOTE anywhere, project based or initially part time: startup generalist hacker, maintain systems and websites, code one-off prototypes. Should be good enough to code without an AI in a few languages, but an effective AI harness coder. Can do a small but complete app/project end to end, including basic marketing. 2+ year exp or a new grad with a good portfolio or major project; happy to consider more experienced person. Good role for someone who's working on their own startup to pick up some side money and experience. Projects could be anything from game-like apps/novelties to voice tools to utility apps. REMOTE anywhere, project based or initially part time: help on some more experimental mathy projects. M.S./Ph.D. in statistics, physics or related, with pragmatic programming experience. Possible projects: gaussian process modeling; designing evaluation metrics; compression; Bayesian tools for radiology imaging. May be good for a grad student part time. This is the fun stuff the founder would rather be doing himself if he had the time. REMOTE (US person) Half-time remote admin/chief of staff type: deal with bookkeeping, compliance, communications, social media, phone calls - save us time on everything non-technical. Should be effective AI user; should have some relevant experience supporting tech business. Please reply with a salary target. may2026-jobpost@waldrews.anonaddy.com

A24 Films (Labs Division) | Senior DevOps Engineer/SRE/Platform Engineer | Full time | Onsite/Hybrid (NYC) We do movies, ping pong blimps, etc https://labs.a24films.com/jobs/devops If you email me, mention hn ;)

CrazyGames | https://about.crazygames.com/ | REMOTE (in Europe) | Full-time | Multiple roles With recent technologies such as WebGPU and WebAssembly, the browser is quickly becoming a powerful gaming platform. High-quality 3D graphics and near-native level performance are now possible without the need for downloads, apps, or platform-specific development. Our browser games platform is already reaching 50 million people per month. We are self-funded, profitable, remote-first, and fast-growing. We are currently looking for multiple people to bring our engineering, product, data, and adops to the next level. Please note that we're looking for people who can work on a European timezone and are ideally based in Europe (which includes the UK for those in doubt). * Product Manager (Game Experience): https://crazygames.recruitee.com/o/remote-product-manager-ga... * QA & Automation Manager: https://jobs.crazygames.com/o/remote-quality-assurance-autom... * Ad Operations Manager: https://jobs.crazygames.com/o/remote-ad-operations-manager * Sr Digital Analyst (Ad Monetization): https://jobs.crazygames.com/o/remote-sr-digital-analyst-ad-m...

Nova Credit | Remote (US, Canada) We're building a unified platform for credit and financial data to power financial inclusion globally. Our mission is to unlock economic opportunities for consumers historically excluded from traditional credit systems by transforming diverse data into actionable risk insights. We are YC company backed by investors from Canapi Ventures, Kleiner Perkins, General Catalyst, and Index Ventures -> Hiring software engineers from Senior to Staff, Engineering Manager, Product, Design & Analytics roles. -> Tech stack: Node.js, React, TypeScript, Python, PostgreSQL, AWS You'll work on enterprise-grade APIs, data integrations, advanced analytics, and seamless user experiences. We're looking for engineers who thrive in fast-paced environments and want to make a meaningful impact on financial inclusion. Apply at https://job-boards.greenhouse.io/novacredit and mention HN.

gentube | founding engineer | Toronto, Canada (eh) | full-time we crossed 100M+ creates with a handful of interns. Now we're building the founding team. what you'll own: - Drive create latency to near-zero, end-to-end - Cut cost per generation - Keep pipelines stable under load - Ship continuously across infra + models - The core loop: create → remix → repeat what we want: Strong full-stack engineer, Bias to ship, 0→1 instincts. Why us: 10M+ creations per month. Small team, high slope. Your fingerprints on a new category: creation as entertainment Comp: $100K-160K and meaningful equity Location: Toronto preferred Apply: careers [at] gentube [dot] app

Baseten Labs | San Francisco, New York |ONSITE, REMOTE, HYBRID | VISA SPONSORSHIP | RELOCATION SUPPORT We are Baseten, the team that powers mission-critical inference for the world’s most dynamic AI companies such as Cursor, Notion, OpenEvidence, Abridge, Clay, Gamma and Writer. We’re growing quickly and recently raised our $300M Series E, backed by investors including BOND, IVP, Spark Capital, Greylock and Conviction. By uniting applied AI research, flexible infrastructure, and seamless developer tooling, we enable companies operating at the frontier of AI to bring cutting-edge models into production. Apply Here: https://jobs.ashbyhq.com/baseten?utm_source=gkzEP29VD4 or email Jason.dupree@baseten.co We are hiring for multiple core roles: 1. Solution Architect: You will partner closely with sales and customers to translate business needs into technical solutions, run technical discovery, and guide repeatable deployments and proofs of value for customers. This role is a great fit for entrepreneurial, customer-facing technical professionals who want a front-row view into how modern companies adopt AI at scale, and who enjoy working across technical discovery, solution design, demos, deployment scoping, and hands-on customer implementations, in close partnerships with Sales and Engineering 2. AI Solutions Engineer/Forward Deployed Engineer: You will partner directly with customers to architect, build, and deploy high-scale production AI applications on Baseten’s platform. You’ll own the journey with customers from initial exploration to production deployment. To be clear, this is a technical engineering role with hands-on coding and software dev that also includes aspects of product management, technical customer success and pre-sales solutions engineering mixed in. We’re language agnostic but strong Python and ML experience is a big plus. The Offer: Compensation: Very competitive, we’re looking for folks with a breadth of experience Equity: This is an opportunity to participate in the ownership of a fast-growing AI Infrastructure platform Location: We are based out of San Francisco with offices in New York. We are also open to remote employees for these roles. Process: If you’re interested, please apply here https://jobs.ashbyhq.com/baseten?utm_source=gkzEP29VD4 or email me direct at Jason.dupree@baseten.co

everyone codes | Software Developer who enjoys teaching | Vienna, Austria (HYBRID) | Part-Time | everyonecodes.io Hey HN! everyone codes is a non-profit that offers high quality programming courses to career switchers, for free (we're sponsored by the government, but highly independent). We're looking for an experienced software engineer who really enjoys teaching and would like to help a diverse group of people learn programming from scratch, enabling them to start a new career in this field. Find all details and how to apply here: https://everyonecodes.io/job-sd-mentor-en

IBM Research | Boston, MA, USA (hybrid - 3 days in office; location flexibility - Boston preferred but NYC/SF possible) | Research Scientists and Research Engineers Our team thinks there's a lot of value in co-design of software harnesses and LLMs, particularly for small/medium models, particularly in the open model space. Our colleagues across the isle do an awesome job at training the Granite model series, so we (physically and organizationally) sit in a uniquely good place to do impactful work in this space. I am currently looking for early career scientists and engineers who are interested in LLMs and also one of {programming languages, formal methods, compilers}. Experience with Rust is a plus. Cool systems-y projects with formalizations on paper or in rocq/lean/etc also a plus. Neither is necessary, per se. If this sounds interesting please send over an email: nathan@ibm.com

Neon Health | AI in healthcare | Hiring Eng, Product & Growth | SF, Remote (North America) - Senior Backend Engineer | SF, Remote (North America) | Full-time | $175-225k + equity - Product Manager | SF | Full-time | $121-177k + equity - Account Exec | SF | Full-time | $120-350k + equity - Growth Specialist | SF | Full-time | $105-$137k + equity https://neonhealth.com/ We’re mission-driven capitalists: making life-saving drugs more accessible, and building a $200B+ company on the scale of Palantir or ServiceNow. Traction: profitable and growing fast. Landing 7+ figure contracts to enterprise healthcare customers. Team: built by exited founders, YC & MIT alum, ex-Tesla, ex-Google engineers. Top investors: funded by elite Silicon Valley VCs who've backed unicorns like DoorDash, Lyft, and Mammoth Biosciences. And strategic healthcare investors with deep industry connections. Outsized impact & opportunity: work at the intersection of agentic AI, healthcare transformation, and life-changing patient outcomes. If you want to work on a team of A-player athletes, doing the best work of your career, and helping get life-saving drugs to the people who need them, apply here: https://neonhealth.com/careers (and make sure to mention HN!)

Back by Sequoia Capital, Peregrine is the operational AI platform powering decision making and operations SF / NYC / DC | In-office 4 days | $130,000 - $275,000 [Leadership] Engineering Manager (SF) https://grnh.se/s7yxefzs5us [Leadership] Engineering Manager, Platform (SF, NYC) https://grnh.se/gwrtizx95us Staff SWE, Product Security (SF / NYC) https://grnh.se/b2kbmt3j5us Staff SWE, AI (SF) https://grnh.se/cq0caps45us Staff SWE, Platform (London) https://grnh.se/b47vd66y5us SWE, AI (SF, NYC, DC) https://grnh.se/yl9kuqrg5us Sr SWE (SF, NYC, DC) https://grnh.se/gwf63pot5us Sr SWE, Networking (SF) https://grnh.se/tdpez89u5us Sr SWE, Data Governance (SF) https://grnh.se/ue4zfbjo5us Sr SWE, Data Infrastructure (SF, NYC, DC) https://grnh.se/bq138yn05us Sr Product Designer (SF / NYC) https://grnh.se/s96svypy5us Sr Design Engineer (SF) https://grnh.se/z8ev1cgu5us Product Manager (SF) https://grnh.se/kyvpq2ww5us

SonarMD | Senior Full Stack Engineer | Remote (US East/Central) | $180-220k+ | Unlimited PTO, healthcare, 5% bonus, 401k match Healthcare AI company. We monitor IBD patients between doctor visits and catch clinical deterioration before it becomes an ER visit. Real patients, real outcomes, peer-reviewed studies. Node/Express, React/React Native, Python, MongoDB Atlas, Postgres, AWS (EC2, Ansible, the real stuff, not just Lambda bingo). HIPAA/SOC2. Team of 5. Lots of data. More AI and ML in prod every other week. You will contribute to 5 and 6 figure mistakes and also the 6 and 7 figure outcomes. It's just another day in the life. You will discover your gaps quickly and then you get to close them. You will have real access and real responsibility. Your decisions will have meaningful impact on other people's lives. Some people struggle with that. You can't. You will own things. You will learn things. We will build things. I am six interviews deep into candidates reading me AWS product pages after being asked about their approach to enrichment. If you have ever debugged something in production and have an opinion about literally anything, please talk to me. If you're interested: resume to eng.hiring@sonarmd.com. If you're really interested: send a cover letter in .md format (no AI, I will know) with answers to: - Last 3 things you personally shipped to prod, preferably ones that failed or had unexpected results - Most recent thing you learned but are too embarrassed to admit you didn't already know - Your 3 biggest pain points working with AI/LLMs/agents - Most recent thing you built that you're legitimately proud of - Preferred tech stack - How many full, 8-hour-day, 5-day-a-week production shipping years you got under your belt, for real The .md skips the line. I'll read it before anything else in the inbox.

CoVar | Durham, NC | https://covar.com/ | Full-time | ONSITE CoVar is a small R&D company specializing in machine learning and software development for defense and healthcare. We're looking for a jack-of-all-trades who can: prototype computer vision algorithms, build Python web services, wrangle large sets of data from disparate classes of sensors, ... any or all, with the only hard requirement being eagerness to learn. Visit covar.com for more information on our current openings!

Oaktree Capital | Senior Software Engineer | Los Angeles, CA (HYBRID) / Hyderabad, India | 1 LA + 2 Hyderabad I'm Julien — I lead Product Engineering at Oaktree. My background is tech, not finance: startups, Meta, data infrastructure companies. I'm hands-on and building a flat, small team that operates like an engineering org, not a bank IT department. If you come from a tech background, this post is for you. We're building the next-generation platform for Oaktree's credit business (private credit included) — one of the largest and most complex investment strategies at a firm managing $220B+ in assets. This is a newly formed Product Engineering group, and we're modernizing everything: practices, architecture, tooling, culture. In the past month alone we've stood up a new CI/CD system, evolved the architecture, and gone from release cycles measured in months to hours. We're shipping rapidly and the pace is accelerating. The work: data-intensive applications across the full stack of a credit investment platform — ingestion, transformation, analytics, and the tools that put insights into the hands of investment professionals. No traditional PMs — you work directly with business stakeholders, own priorities, and ship. This is a hands-on, code-every-day role. What we're looking for: - 10+ years building and owning data-intensive systems in production -Strong CS fundamentals (data structures, distributed systems, concurrency, performance) - Deep expertise in data modeling, pipeline architecture, and systems that process/transform/serve large volumes of data - Python + at least one statically typed/compiled language (C#/.NET, C++, Java, Scala, Go) - Cloud-native experience (our environment is Azure, but what matters is you've operated at scale) - Comfortable with ambiguity, direct stakeholder engagement, and owning outcomes end-to-end - Genuine interest in applying generative AI practically across engineering and product workflows A note on title: the internal title is Vice President, which is standard in finance. In substance this is a Senior/Staff Engineer IC role. Locations: 1 role in Los Angeles (hybrid Tue-Thu, DTLA office) a 2 roles in Hyderabad, India. Interview process: 0. recruiter screen 1. Behavioral + coding (30 min each, can be split or combined) 2. Onsite: system design take-home + panel, stakeholder meeting, hiring manager please email me jubrown@oaktreecapital.com

Latitude AI | Software Engineer | Pittsburgh, Palo Alto, Dearborn, Remote (US) | Full-time | lat.ai We make automated driving software. As an independent company owned by Ford we need to ship a consumer-facing product at scale & reliability not common for our space. Yet we have the freedom to move fast. 2026 is our first time shipping a customer fleet, so times are exciting. Several open roles on the careers site: https://lat.ai/careers But the _best one_ is on my team (Data Platform): https://grnh.se/12jfaoak1us. Looking for a generalist SWE with strong opinions about data modeling and storytelling. Our stack (BQ, various dashboard & notebooking tools, conversational analytics) is heavily used at the company for all decision-making. An ideal candidate would have product vision, help us adapt for deeper adoption, and guide customers to solve real problems (vs vanity metrics/dashboards or get stuck in XY-problems). Very competitive pay; bonuses above the norm (levels.fyi seems to have a good bead). Visa sponsorships: yes. Outside-US hires/relocations: sadly no. Email in profile (or find me on dbt, Superset, k8s Slack), AMA.

HME Technologies | AI Operations Lead | REMOTE | Full-Time | $40k-$75k base + Bonus HME Technologies (https://hmetech.com/) is a small, profitable media and affiliate marketing company. We build audiences, sell sponsorships, and run a growing portfolio of content properties across YouTube and emerging platforms. We're operator-run, AI-native, and looking for our first AI Operations Lead to work directly with the co-founder to turn our AI capabilities into a serious operational advantage. What you will do: > Build the short-form engine: Design and run an AI-leveraged workflow to repurpose years of long-form content into 50-100 pieces/week for TikTok, Reels, and Shorts. > Stand up owned analytics: Move us off spreadsheets and partner dashboards. Build clear tracking for email growth, content performance, and affiliate attribution. > Be the AI execution engine: Build automations (Make, Zapier, n8n) and write Python or JavaScript when needed to glue systems together. > Operationalize AI internally: Build practical AI workflows for our creative directors, salespeople, and content producers to speed up their output. What we are looking for: - You ship: You aren't just "AI-curious"—you use Claude, ChatGPT, and automation tools to do real work every week. - You operate: You can take a directive like "we need a thing that does X" and come back with a finished system, making the small decisions along the way. - You write: We work async. We use Slack, Notion, and Google Docs. If your default is to schedule a meeting, this is the wrong role. Our culture: Async-first, zero bureaucracy, and a sustainable pace. We don't do crunch culture, we respect off-hours, and we completely pause work for Shabbat (Friday sundown to Saturday night). Sustained operators need sustained rest. How to apply: Fill out our application form here: https: https://tally.so/r/b5Nbe1 Full JD: https://docs.google.com/document/d/1dP5-nrLAaGIMzkCSSdLyj78F... Please do not send a resume. If we're interested, you will do a paid project (4-8 hours of work, solving a real problem we have). We pay you for your time whether we hire you or not. If it's a fit, we move fast.

Cologne, Germany | UMH | Product Engineer | Full-time | 55 - 85k EUR | ONSITE (part remote) Hi, Alex and Jeremy here from UMH. 8 years ago, Jeremy was absolutely frustrated with the status quo of data infrastructure in manufacturing. Companies paid millions per year for "shitty 90s software" and are still doing that today, when there is much better software out there for open-source. So we decided that we can do this better, first founded a System Integrator, realized most of the tasks in setting up and maintaining a data infrastructure can be standardized, and decided to found the currently VC-backed UMH, which is built on open source software and is open source itself. What we're actually building: We build and scale a real-time data platform that runs hundreds of Benthos pipelines inside a single Docker container (UMH Core), processing millions of industrial messages that control actual production processes. Plus a local-first user interface (Management Console) where both non-technical factory workers and power-users/developers can work together. And yes, we care about UI in enterprise/industrial software. https://www.umh.app/careers/product-engineer-f-m-d-55-85k-eu...

telli (YC F24) is hiring across engineering/design/sales/marketing [on-site Berlin] - https://hi.telli.com/join-us

Dialogue | dialogue.co | many roles in dev, design, product | Montreal or Toronto | 3-days in office We offer virtual care services to Canadians. More details here https://alexissmirnov.substack.com/p/help-wanted

AI Model Assessment Specialist | REMOTE | Contract | $22 - $70/hr We are scaling up our AI training operations and looking to bring on a large number of contractors (up to 1,000 openings) to help evaluate, stress-test, and refine next-generation AI models. The Role: Essentially, high-level RLHF (Reinforcement Learning from Human Feedback) and model evaluation. You will analyze AI-generated content across various domains, fact-check complex outputs, catch subtle hallucinations, and provide detailed, constructive feedback to improve model reasoning and accuracy. You'll also simulate real-world scenarios to gauge the model's actual utility. What we are looking for: Native-level English (C1/C2) is a hard requirement. Analytical Rigor: High-level reading comprehension. You need to be able to spot logical flaws, edge cases, and subtle anomalies in text. Autonomy: Self-starters who are highly organized and can reliably manage their time in a remote setup. Bonus: Background in research, editorial work, data annotation, or tech evaluation. We index highly on people with "good taste" and refined judgment for high-quality content. Note: The wide hourly rate ($22 - $70/hr) reflects the variance in domain expertise, assessment complexity, and location. How to Apply: Apply here: https://l1nq.com/ai-model-assessment-specialist Important Next Step: Please check your inbox/spam folder immediately after submitting your application. You will receive an email containing a link to an AI-driven interview. Completing this AI interview is a mandatory requirement to move your application forward.

Marker | Full-time | REMOTE or HYBRID (NYC/SF/London) | https://markercollective.com Marker is a technology joint venture from 3 leading communications agencies. We’re an incubator building and launching force-multiplying software products for communications teams. Our first product is Delve (https://delve.news) — a coverage monitoring, analysis, and insight toolkit to track and measure the entire online conversation about your business or industry. Our product team is small and autonomous, but with the resources, expertise, and customer access of the global agencies we work with. We’re hiring an early engineer to join us on this journey; you’ll have a large impact on what we build, how we build it, and where we’re going next. Our technology stack includes Deno, React, PostgreSQL, and Elasticsearch. Bonus points for expertise in any of: data visualization, distributed systems, web scraping, large-scale data pipelines. Apply: https://careers.markercollective.com/jobs/479834-software-en... No recruiters or agencies, please.

FunnelStory | Principal Engineer, AI Systems | Remote (India) | Full-Time | funnelstory.ai FunnelStory builds a queryable context graph over enterprise data — the infrastructure layer that lets AI agents reason over live customer intelligence. We've built a federated query engine purpose-built for agents, ML models from scratch in Go (health scoring, cohort expansion, process mining, Markov chains, Genetic Pareto optimization), and on-prem deployment infrastructure for enterprise customers. All on a deterministically tested backend. We need engineers who go deep. The kind who read academic papers to build something novel, then hunt down a performance bottleneck five layers deep in the stack. Go is preferred but not required. Strong math and systems engineering background is a plus. What's required: ability to solve hard problems, use AI tooling to add real value (not slop), and drive work forward independently. Please reach out to me directly at preetam @ funnelstory.ai with "HN" in the subject.

Olli Health | REMOTE (US/CA) w/ Quarterly Travel | Full-Time | ollihealth.ai Hi HN - Several of our critical founding hires came through this forum, and we’re hiring again for 4 additional roles. Olli Health Built by home health experts and seasoned product managers and engineers from Amazon, Google, Cohere Health, and Arrive Health, Olli Health streamlines ICD-10 coding and in-home documentation with industry-leading speed and accuracy, freeing nurses to focus on patients while helping agencies maximize revenue, reduce compliance risk, and scale efficiently. We’re backed by top healthtech and AI-focused VCs (Cannage Capital, Arkitekt Ventures, and Tau Ventures) and Olli Health was recently profiled in Home Health Care News (https://homehealthcarenews.com/2025/11/home-health-ai-platfo..., Post-Acute Care's leading publication). We are motivated by the opportunity for impact, and driven to ensure that our parents, friends, (and ourselves!) will continue to have access to quality healthcare in the home. Roles Senior AI Engineer | $180k-220k: Own end-to-end LLM product surfaces in a clinical/HIPAA environment, running rigorous evals and experiments across prompts, retrieval, and agents while shipping fast with strong Python chops and NLP fundamentals. Senior Software Engineer, Scribe & Integrations | $160k-190k: Ship production React Native apps with strong TypeScript/PostgreSQL chops to own the full stack end-to-end, wrangling messy EHR data integrations and turning fuzzy clinical workflows into fast-shipped, observable features. Senior Software Engineer, Platform | $160k-190k: Stack - Python (FastAPI/Django/Flask), React, PostgreSQL, and AWS to own platform architecture and IC delivery on a small team while mentoring engineers and setting the quality bar across a fast-moving healthcare codebase. Senior Product Manager | $140k-180k: Experience in regulated/clinical B2B SaaS, to own roadmap and prioritization across two product lines, run hands-on customer discovery with clinicians, and ship tight specs fast at an early-stage startup. Requirements for all roles: 5+ YoE | Startup experience | Auth to work in US/CA I'm Olli's CTO, and these roles will work directly with me and our VP Engineering. See our website for details on each: https://www.ollihomehealth.ai/careers

Senior Software Engineer (Python) Newport Beach, CA (hyrbid)| Full Time https://www.researchaffiliates.com/about-us/careers/software... WHAT WE’RE LOOKING FOR: We seek experienced and versatile Python engineers passionate about creating efficient, lightweight, and robust code. As part of a small team you will collaborate with researchers and other investment professionals to transform ideas into production systems. This role involves maintaining code, developing software libraries, and managing cloud-based resources. To excel, we expect a strong understanding of Python’s internals, including memory management and data structure performance characteristics. Extensive experience with the standard library, including modules like itertools and functools, along with advanced language features such as decorators, generators, and type annotations, is essential. We embrace modern development approaches such as test-driven development, peer review, and continuous integration and improvement. Team members actively engage in all stages of the development process, from planning to completion. Our firm values curiosity, authenticity, responsibility, and collaboration. We encourage open feedback, diverse opinions, and shared responsibility for maintaining a high-quality code. Our success is measured by team productivity, not individual output. We respect and support each other’s growth. WHAT YOU’LL BE DOING: • Collaborate with teams of software engineers and finance professionals to develop, optimize, and maintain code. • Implement rigorous testing practices, adopt continuous integration and continuous deployment, and ensure high standards in code quality. • Conduct and participate in code reviews, pull-requests, and professional development activities to stay current in relevant domains. • Develop software on Linux environments and deploy in AWS. • Contribute positively to team and firm culture by embracing our core values. MINIMUM REQUIREMENTS: • A bachelor's degree or higher in Computer Science or a related field. • At least three years professional experience using Python. • Fundamental knowledge of core computer science concepts, including algorithms, data structures, performance characteristics. HIGHLY DESIRABLE: • Experience with Linux and command-line environment. • Experience with cloud environments and infrastructure as code tools. • Familiarity with NumPy and dataframe libraries. • Experience in other programming languages such as TypeScript, Rust, or C. • Knowledge of quantitative finance and/or financial data. Please submit resume and cover letter to humancapital@rallc.com and say you are from Hacker News Who's Hiring.

Siia | Flutter mobile engineer, Software Engineer | Remote within 2/3 hrs timezone of CEST | Based on location of candidate We are building a uniqe edtech device for use in schools based on Android and are looking for a software engineer with experience in one or both of Flutter and Kotlin. We heavily use firebase with realtime capability of supabase and google cloud infrastructure. We are not just another edtech app but something truly unique qith realtime capabilities leveraging LLMs for inclass activities and outside of class activities for teachers. contact contact @ siia.io

Saildrone | Multiple Roles | Onsite/Hybrid (US Only) | SF Bay Area (Alameda) | Full-Time | https://www.saildrone.com/ Saildrone is the world's leading operator of uncrewed surface vehicles (USVs), providing persistent in situ data from the most challenging ocean environments on Earth. Our fleet, ranging from the 23-foot Explorer to the brand-new 170-foot Spectre, is revolutionizing how we understand and secure our oceans. We work with global navies to deliver maritime domain awareness, partner with governments to map the seafloor in high-resolution, and collaborate with scientists to track climate change and hurricane intensification in real-time. Maybe you saw that we recently unveiled Spectre, a new class of high-speed USV designed for strike and anti-submarine warfare[1]. Or perhaps you read about our partnership with Meta, where we completed the first-of-its-kind autonomous deep-water cable survey[2]. You might have also seen our ongoing mission with NOAA to map 13,000 square miles of the Mariana Islands[3]. Whether we are hucking drones into Category 4 hurricanes or scaling up the production of the world’s largest autonomous wingsails, we are looking for people who want to build the future of maritime autonomy. We're hiring for a breadth of different positions across our organization. In software, we're looking for folks in our Perception, Platform/Frontend, and Vehicle teams. Stacks vary, but we're looking primarily for backgrounds in C++ and/or JavaScript (Node, TypeScript, React). All software positions are hybrid roles based out of our HQ in Alameda, just a quick ferry ride across the Bay from San Francisco. In addition to software, we are also actively hiring for roles in: * Production & Manufacturing (Composite technicians, assembly, and electronics) * Fleet Operations (Mission managers, vehicle pilots, etc.) * Hardware Engineering (Mechanical, electrical, and systems) You can see a list of open positions on our career page: https://www.saildrone.com/careers Please apply through our career page; be sure to select "Other" and specify this HN post when asked how you heard about us! [1]: https://www.saildrone.com/media-room/press-releases/saildron... [2]: https://www.saildrone.com/media-room/press-releases/saildron... [3]: https://www.saildrone.com/media-room/press-releases/woolpert...

AxisCare | Senior + Mid-Level Software Engineers | Remote (US/Canada, ET/CT/MT) | https://axiscare.com/careers We build the market-leading SaaS platform for the home care industry: scheduling, billing, payroll, CRM, and clinical documentation for agencies across all 50 US states and 6 countries. ~10,000 baby boomers turn 65 every day; the agencies using our software help them stay in their homes. We're are small, fast teams that have gone deep on AI-augmented development. Not as a talking point; as the actual way we work. We prototype aggressively, put working software in front of stakeholders before a traditional process would finish a PRD, and iterate from there. We're looking for engineers who already work this way: driving agents on real codebases, maintaining quality when the machine is doing the typing, and knowing when to throw the output away. Stack: PHP (backend), React + TypeScript (frontend), MySQL, RESTful APIs, AWS. You'll work across the full stack. Senior (5+ yrs): Product-minded, systems-thinking engineers. You'd lead 1–2 engineers while still taking substantial features from concept to production solo. You mentor others in code design, systems thinking, and driving AI agents effectively. Mid-Level (2+ yrs): This is a senior-track role. You'll ship real features with mentorship from senior and staff engineers who are deeply invested in your growth. We want engineers who see where things are heading and want to get ahead of it; going deep on architecture, design, and understanding the problems, not just writing the code. Both roles: We want concrete evidence you use AI as a real tool, not a novelty. Push the tools until they fail, then tell us about it. We care about quality software that's easy to change, clear writing, and engineers who get curious about the customers, not just the tickets. Compensation: Salary TBD based on experience. Medical/dental/vision covered in full for the employee. Company-provided equipment. Apply with a brief resume and a cover letter (written or video — video goes to the front of the line). The cover letter matters; we read it first. Tell us what you've built, how AI has changed the way you work with specific examples, and why this team at this moment. Candidates only, no recruiters. Feel free to reach out directly via email to wademeredith [at] axis care [dot] com if you have questions. Apply through the website.

Sentinel Defense Technologies | Remote (Global) | Equity → Pre-Seed Closing We build real-time civilian threat intelligence for conflict zones — and we just landed our first operational pilot. Multi-model AI pipeline (Gemini 3 Pro / Flash) ingests OSINT from verified sources, runs it through a gated verification system, and pushes geolocated alerts to offline-first mobile clients. Think of it as a personal intelligence analyst for non-combatants — on a phone that works on 2G. This is not a pitch deck. We have a working system: Django backend is live, Flutter apps are approved on both App Store and Play Store, multi-gate AI pipeline is processing real OSINT, admin console has human-in-the-loop verification for high-severity alerts. Since our last HN post: 93 candidates vetted across two months, 1 Senior AI/Backend Engineer hired (now owns the verification pipeline), and we've begun an operational pilot with Winrock International for counter-trafficking intelligence in Southeast Asia. Pre-seed is imminent with multiple NGO grant applications under review (WFP, IRC Airbel, DRK Foundation). *We need one person*: Founding Product Engineer / Systems Architect You will own the Django backend, MongoDB schemas, and the Flutter UI that connects them. Our AI pipeline lead handles the Gemini orchestration — your job is to own the data layer, build the API surface, and wire it directly into the offline-first client. This is not drawing backend diagrams. You must be an end-to-end builder who cares about how a civilian interacts with the system on the ground in a crisis. A bug in this system isn't a 500 error — it's a missed warning in a conflict zone. *Must have*: Python/Django, MongoDB, Flutter (or high competence to pick it up fast), and system design thinking. Strong plus: DevOps (Docker, AWS), LLM integration, OSINT, geospatial. We also welcome strong full-stack implementation engineers who ship fast and want founding-team equity. Same stack. *Compensation (No BS)*: - Now: Sweat equity (12-18% SA / 5-10% FSD, 4yr vest, 1yr cliff). This is founding-team ownership. - Pre-Seed (closing): $3,000/month + equity. - Seed (6-12 months): 75% market salary + equity. Increases from there. If you need full salary today, this is not for you. If you want to build something where the stakes are real and you're willing to bet on yourself to get there — we should talk. *Stack*: Python 3.9+, Django 4.1.13, MongoDB, Flutter, Antigravity/Cursor IDE, Docker, AWS. *Apply*: Email: PeterJFrancoIII@gmail.com with subject line `[SENTINEL-BUILDER] - HackerNews Application`. To prove you read this, include the word "Atlas" in your first sentence. Include your Resume or GitHub + what you'd build in your first week. (Emails without the exact subject line are auto-archived.) https://www.sentineldefensetechnologies.co.za

Fullstory | REMOTE (US), Atlanta USA, & Bogotá Colombia | https://www.fullstory.com/ Fullstory offers privacy-preserving session replay and analytics for websites and mobile apps. Our session replays are nothing short of magical, and the combination with our automatic analytics creates eye-opening insights. --- Remote (US): * Senior Manager, Security Engineering - $230~240k USD + up to 20% bonus - https://www.fullstory.com/careers/jobs/110896c1-25d8-4c96-82... --- Atlanta, US (semi-onsite, requiring 1 day per week in office): * Senior Software Engineer, Web Capture - $145~170k USD + up to 10% bonus - JavaScript/TypeScript, React, Go (golang) - https://www.fullstory.com/careers/jobs/3b8d231f-ae95-4f95-84... * Senior Software Engineer, Data Pipeline - $160~180k USD + up to 10% bonus - Go (golang), Kubernetes (K8s), GCP - https://www.fullstory.com/careers/jobs/9debecd5-7af9-48e9-91... * Senior Software Engineer, Data Infrastructure & AI - $160~170k USD + up to 10% bonus - Go microservices, MCP server, dbt models - https://www.fullstory.com/careers/jobs/20dd3185-3313-4ac3-b1... * Senior AI Automation Engineer, Finance - $135~145k USD + up to 10% bonus - https://www.fullstory.com/careers/jobs/4480a6d5-231e-420c-a6... * Sales Engineer - $90~140k USD - https://www.fullstory.com/careers/jobs/89a34b65-2470-4ae2-bd... --- Bogotá, Colombia: * Senior Software Engineer, Data Management - $80~89k USD + up to 10% bonus - https://www.fullstory.com/careers/jobs/38395836-21ca-4663-85... --- We have additional roles for sales, consulting, accounting, and customer support open in Atlanta, London, Australia, and some Remote (US) options. See the full list at https://www.fullstory.com/careers?utm_source=092xpqyAkV For US roles, you can expect regular raises & bonuses, equity, and benefits including: health insurance, 401k matching (Vanguard), annual learning stipend, unlimited PTO, parental leave, and more. I take about 4-5 weeks vacation a year, in addition to ~3 weeks worth of company holidays (federal holidays + the week of Christmas to New Years.) Folks in other countries can also expect a strong benefits package, but I'm not as versed on the details. Additionally, you get a 5-week sabbatical after 5 years of employment - I took mine about a year ago, and it was fantastic. To apply, please submit your info on the website, and our recruiting team will get in touch with you. If you have questions, feel free to reply here or contact me directly. (I'm an engineer on the iOS team, but I'll do my best to answer questions.)

Kepler | Full Stack Engineer | New York, NY | ONSITE | $230K-$260K + equity We're building the trust layer for AI in high-stakes industries. https://kepler.ai LLMs hallucinate, so they can't be the thing producing your numbers. In Kepler, the LLM orchestrates (decides what data to gather, what to compute, how to structure the output), but the model never touches the data itself. Every actual value flows through deterministic code pipelines with provenance metadata back to source. Verification loops cross-check outputs before users see them. We started in finance because tolerance for wrong answers is zero. First product is a research platform for buy-side analysts: pull comparables, build models, research filings. Same architecture extends to chemicals, legal, healthcare. Models are commoditizing fast; the trust layer is what's missing. If you want the deeper architecture writeup, Anthropic just published a case study on Kepler: https://claude.com/blog/how-kepler-built-verifiable-ai-for-f... What you'd build: - Source-explorer UI that traces any value back to its exact origin in the original document - Extraction pipeline for a data source we don't yet handle, with provenance and verification from day one - Agent orchestrator that handles partial failures so a bad extraction from one source doesn't block parallel work - Verification rules that cross-check values across multiple sources and surface conflicts with provenance on both sides Stack: Rust backend (orchestration, extraction, computation), TypeScript/React frontend, PostgreSQL, AWS. Model-agnostic, currently Claude + GPT. We don't require Rust experience; we hire on fundamentals. Looking for 5 years production experience, strong in TypeScript/React, comfortable in backend work. Bonus if you've built systems where correctness mattered (payments, data infra, healthcare, anything where a wrong output has consequences). Distributed systems basics: concurrency, fault tolerance, retries, idempotency. Founding team is 40+ combined years at Palantir building Foundry's core systems (Ontology, Fusion, Workshop, FoundryML). CEO scaled a data company to $15M ARR, sold it, then ran Business Engineering at Citadel. Backed by founders of OpenAI, Meta AI Research, MotherDuck, dbt Labs. In-office NYC. Apply: https://jobs.ashbyhq.com/kepler-ai/52624a4e-33e3-4f16-8028-0..., or email me: eddie.hammond@kepler.ai

MixRank (YC S11) | Software Engineers | 100% REMOTE (Global) | Full-Time MixRank processes petabytes of data every month from web crawling. We have hundreds of customers using our data products including Google, Amazon, Facebook, Intel, and Adobe, across industries including Finance, Recruiting, Sales, Marketing, and Security. We’re a fully-remote company with a global footprint in over 20 countries. We're growing, profitable, employee-owned, no dependence on outside funding. Applicants from all geographies and backgrounds are welcome. We are looking for passionate individuals for whom programming is not just a job but it’s something they love to do. We're obsessed with computers, programming, big data, databases, compilers, hardware, math, data science, and the internet. Does this sound like you? Please apply to join our team. Our code base is very friendly to new contributors. You'll have a fully-functional development environment within hours (fully automated) and be pushing commits on your first day. Deployments to production happen multiple times per day and finish in less than 2 minutes. Effectively all of our codebase is written in Python, Rust, SQL, Javascript/TypeScript, and Nix. The core technologies you'll need familiarity with to be productive are Python, PostgreSQL, Linux, and Git. We operate at a larger scale than typical startups. We operate two datacenters with high performance servers we've built that are capable of dealing with the volumes of data we process. We've implemented our own distributed file system. We do full-scale web crawls. We download and perform static analysis on the entire universe of Android APKs and iOS IPAs that are published. Unlike a typical startup where you'll spend half of your time in meetings, and the other half fixing bugs from Jira tickets— at MixRank you'll get to challenge yourself with difficult technical problems that will help you to grow as an individual. We're hiring continuously for the positions below— they aren't singular positions that will close once filled. Our philosophy on hiring is that the candidate is more important than the position. For each new member of the team, we design a custom role and responsibilities that are specialized to their interests. Other companies will come up with a long list of specific requirements for a position with the expectation that you'll exactly replace someone from the team, or that you'll be the perfect tetris piece that satisfies the job requirements decided by a committee. MixRank is more pragmatic: we'll first get excited about having a unique individual on the team, then we'll figure out the best way to accommodate their specific talents. -- Junior Software Engineer - Remote (Global), Full-Time We're looking for remote junior engineers that have 0-3 years of professional experience in software, and 5+ years of curiosity exploring computers, programming, and technical hobby projects. This is an open-ended entry role with mentorship and diverse opportunities to work on all areas of our product: databases, distributed systems, infrastructure and tooling, data analysis, machine learning, frontend/backend web development, APIs, data mining, data modeling, and more. To stand out, please highlight what makes you unique: passion for computing, curiosity and side projects, work ethic, niche research, etc. Ideally you've already graduated, but if you still have one or more years left of school, please feel free to apply anyway, and if you're the right fit for the team we'll figure out a way to accommodate your schedule. https://www.ycombinator.com/companies/mixrank/jobs/Fnwsojk-j... -- Software Engineer - Remote (Global), Full-Time We're hiring generalist software engineers to work on web applications, data mining, machine learning/data science, data transformation/ETL, data modeling, database scaling, infrastructure, devops, and more. We'll cater the role to whatever subset of these areas match your interests. Beneficial experience includes PostgreSQL, Python, Rust, Linux, TypeScript, Nix, frontend/backend web development, and data mining. https://www.ycombinator.com/companies/mixrank/jobs/RXQspen-s... -- I’m Kiran, Chief of Staff (CoS) at MixRank, a fully remote data startup building go-to-market intelligence. We’re US-incorporated but hire globally, and we’re bringing on new teammates to join a fast-moving team with real ownership and impact.

Prior Labs | Berlin / Freiburg / NYC | ONSITE | Full-time | Multiple Roles Tables power every financial model, clinical trial, and scientific experiment, but deep learning has mostly ignored them. No natural sequence, no spatial structure, no shared vocabulary across datasets. LLM architectures don't transfer. We built TabPFN, the first foundation model that actually understands tabular data (published in Nature, 3M+ downloads, new SOTA for tabular ML). The hardest problems are still open. The model is half the product. The other half - training infrastructure, real-time serving, developer platform, reliability - is what turns a research breakthrough into something enterprises trust in production. We're hiring across both. ML Engineer, Cloud Platform — Design and scale the core infrastructure for serving and finetuning foundation models in production. Early enough that you're making the architecture decisions, not inheriting them. ML Engineer, Training Infrastructure — Own GPU infrastructure, distributed training performance, and the developer productivity layer (CI, experiment tracking, model registry) that keeps research moving fast. Full Stack Engineer, ML Platform — Build the product that puts tabular foundation models in users' hands, from data upload through inference and results. You'll work across frontend, backend, and directly with the research team to turn new model capabilities into production features. Research Engineer, Foundation Model — Design experiments, run ablations, build training infrastructure, contribute to papers. Research engineers here aren't supporting scientists — they are the science team. Also hiring: Research Scientist, Applied Scientist, Forward Deployed ML Engineer, Developer Relations Engineer, AE, BDR. 20-person team selected from thousands applicants. Backgrounds from Jane Street, Google, CERN, G-Research. Led by Frank Hutter, advised by Yann LeCun and Bernhard Schölkopf. €9M pre-seed from Balderton, with backing from leaders at Hugging Face, DeepMind, and Black Forest Labs. Comp competitive with top AI labs, meaningful equity. All roles: https://jobs.priorlabs.ai Prior Labs | Full Stack Engineer, ML Platform Hiring: Berlin | Salary: Competitive with top AI labs + meaningful equity | Relocation support | Full Time Building the product that puts tabular foundation models into users' hands. React, FastAPI, Postgres. You'll work across frontend, backend, and directly with researchers shipping new model capabilities to production. 3+ years full stack, strong TypeScript and Python, experience with data-intensive applications. https://jobs.priorlabs.ai

Stanford Research Computing | Stanford, CA (next to Palo Alto) | Full-time | Three positions | ONSITE,HYBRID Stanford Research Computing (https://srcc.stanford.edu) is a collaboration between University IT and the Vice Provost and Dean of Research. We operate HPC environments for researchers, we do one-time consultations on projects (from software and pipelines, to data management, to physical building design and fit-out), and we provide contract support for individual Labs, Departments, and Schools. We have three open positions: • HPC Hardware & Infra Sysadmin [ONSITE]: We are looking for a system administrator to help run the hardware & infrastructure portions of Sherlock, our largest HPC cluster. Sherlock is a mix of Intel & AMD x86_64 servers, with three Infiniband fabrics, plus an Ethernet backbone. You'll be responsible for maintaining, troubleshooting, and improving the hardware of Sherlock. That is, keeping things working, and figuring out how to make it better. More info: https://phxc1b.rfer.us/STANFORDbEHWH7 • Principal Storage Architect & Team Lead [HYBRID]: Our current storage team lead is moving on to Industry, so we're splitting his work into two separate roles. This is the Technical Manager position: You'll be leading the storage team, setting the direction for our large storage environments: Oak (file storage, used by multiple cluster), Fir (fast scratch for Sherlock), and Elm (object storage on top of tape). Knowledge of Lustre, Infiniband, and PB-scale storage is important. More info: https://phxc1b.rfer.us/STANFORD5.1WH8 • Storage Architect or Storage Sysadmin [HYBRID]: This is the second role I referenced above. You'll be maintaining & expanding Oak, our 20+ Pebibyte Lustre storage environment used by our largest HPC clusters. Depending on your experience level, you might also have some responsibility for Elm, which provides object storage on top of tape. Knowledge of Lustre, Infiniband, and PB-scale storage is important here, too. More info: https://phxc1b.rfer.us/STANFORDHPfWHA If you don't already live in the Bay Area, we provide a relocation incentive. Depending on where you live, we provide free transit passes. Unfortunately, if you drive, you will have to pay for parking for the days you're on-site. There is some on-call around the holidays. We get a 403(b) match, good healthcare, and 30+ days off per year (holidays + vacation). All Benefits are all publicly documented at https://cardinalatwork.stanford.edu/benefits-rewards. If you have questions, feel free to reply here or email me (the info is in my profile)!

Senior ML Engineer | Ping Data Intelligence | REMOTE or ONSITE (Miami, FL) | Full-Time | https://www.pingintel.com Ping Data Intelligence is a dynamic startup based in Miami, FL, revolutionizing the property insurance sector with cutting-edge web technologies and ML-powered tools. Despite rapid growth, we retain the stability of a self-funded, profitable company. Role Overview: As a Senior ML Engineer at Ping, you will sit at the intersection of research and data engineering — designing, training, and deploying machine learning models that power our property attribute classification, document extraction, and geospatial products. This is a hands-on role for someone who can read a paper in the morning, prototype an idea by lunch, and ship it to production by end of week. You will own ML systems end-to-end: from data pipeline design and feature engineering through model training, evaluation, and production deployment. The role is remote-friendly, with the option to work onsite at our Miami, FL office. Responsibilities: Design, train, fine-tune, and evaluate ML models (LLMs, classification, sequence models) for property insurance. Build and maintain robust data pipelines that feed training, evaluation, and inference workloads at scale. Develop rigorous evaluation frameworks — establish metrics, build rater alignment processes, and apply statistical methods to determine when a candidate model is genuinely better than production. Run controlled experiments, ablations, and A/B tests; communicate findings clearly with appropriate uncertainty quantification. Deploy models to production and own their performance, drift monitoring, and iteration cycles. Collaborate with the engineering team to integrate ML services into our backend (Django/Python) and frontend (React/TypeScript) products. Stay current with the ML literature and translate relevant advances into practical improvements for our products. Required: PhD in Statistics, Machine Learning, Computer Science, Applied Mathematics, or a closely related quantitative field (or equivalent research experience with a strong publication or production track record). Strong foundation in statistics — experimental design, hypothesis testing, Bayesian methods, and uncertainty quantification. Minimum 5 years of combined research and applied ML experience, with a proven track record of shipping models to production. Deep proficiency in Python and the modern ML stack (PyTorch, Hugging Face, scikit-learn, pandas, NumPy). Hands-on experience with LLMs, including fine-tuning (LoRA/QLoRA, full fine-tunes), prompt engineering, and evaluation. Strong data engineering skills — comfort building reliable pipelines over messy real-world data, working with SQL and columnar formats. Excellent debugging, problem-solving, and written communication skills. Why Join Ping: Work directly on ML systems that touch real production traffic from day one. Collaborate with a small, senior team of insurance and tech veterans building products that are reshaping the property insurance industry. Enjoy the autonomy of a research role with the impact of an applied one — your models will be in production, used by real customers, and you will see the results immediately. Please apply at jobs@pingintel.com

Mercor (YC W23) | San Francisco, CA | Full-Time We're building the AI layer for global hiring — matching companies with top technical talent and handling everything from evaluation to payroll. We process payments to contractors in 150+ countries and are scaling fast. Backed by Peter Thiel, Jack Dorsey, and others. Software Engineer, Payments | SF or NYC https://jobs.ashbyhq.com/mercor/3c02ed8c-3807-4aef-91cc-ccca... Own the systems that move money across 150+ countries. You'll build and scale Mercor's payments infrastructure — handling global disbursements, reconciliation, and financial reliability at scale. Strong backend chops and interest in fintech systems required. Infrastructure Engineer | SF or NYC https://jobs.ashbyhq.com/mercor/296c4031-5e98-4772-95f5-a9eb... Build and own the infrastructure that powers Mercor's core platform. You'll work across compute, networking, reliability, and developer tooling — keeping a fast-growing system stable and scalable. Ideal for engineers who care deeply about uptime, performance, and platform efficiency. Software Engineer, Platform | SF or NYC https://jobs.ashbyhq.com/mercor/cb67851b-0269-4cf5-996c-34c3... Build the foundational systems that all of Mercor's products rely on — APIs, developer primitives, internal tooling, and shared services. You'll work across teams and have outsized impact on engineering velocity and product quality. Software Engineer, Fraud | SF or NYC https://jobs.ashbyhq.com/mercor/4d817fa9-8860-4063-9da7-f484... Detect and stop fraud on one of the world's largest talent marketplaces. You'll build real-time signals, risk models, and enforcement systems to protect the integrity of Mercor's platform — balancing precision with a great experience for legitimate users. Data Engineer | SF or NYC https://jobs.ashbyhq.com/mercor/7d9d9439-848b-4fb4-b276-9efc... Build the data infrastructure that powers Mercor's matching, evaluation, and business intelligence systems. You'll design and own pipelines, warehousing, and data models that inform both product and operations at scale. Software Engineer, Agents | SF or NYC https://jobs.ashbyhq.com/mercor/4f4fc8c3-4056-47bb-9e00-1db6... Build the agentic systems at the core of Mercor's product — autonomous pipelines that evaluate candidates, match talent, and take actions on behalf of users. You'll work at the intersection of LLMs, product, and infrastructure to ship AI-native features.

DuckDuckGo | Multiple Roles | Remote | Full-time | $178,500 - $242,800 USD + equity We are looking for candidates that are excited to join us on a mission to raise the standard of trust online. All of our roles are fully-remote, except where specific locations are noted. Most of the software engineering positions have been repeating here for years because we've been continually hiring for them, scaling our whole team to now over 300 people—many of those hires have come through Hacker News. We've been improving our hiring process over time, and we know some good candidates may have fallen through the cracks. Some people who tried in the past have had success going through it again, and we still pay for hiring projects. Engineering Director, Backend - $242,800 USD + equity https://jobs.ashbyhq.com/duck-duck-go/3be5b69c-bacc-48fb-941... Senior Backend Engineer - $178,500 USD + equity https://jobs.ashbyhq.com/duck-duck-go/53022b02-da3d-4fda-827... Senior Android Engineer - $178,500 USD + equity https://jobs.ashbyhq.com/duck-duck-go/57eea673-2519-4afc-a9a... Senior iOS Engineer - $178,500 USD + equity https://jobs.ashbyhq.com/duck-duck-go/a1239b43-0c9a-45a4-b35... Senior Software Engineer - Windows Desktop App - $178,500 USD + equity https://jobs.ashbyhq.com/duck-duck-go/47e569c6-f995-4955-a89... Senior Data Scientist - $178,500 USD + equity https://jobs.ashbyhq.com/duck-duck-go/a447e823-fd8f-438f-909... Director, Data Science - $242,800 USD + equity https://jobs.ashbyhq.com/duck-duck-go/0269aeaa-8d8f-4c8d-b78... Senior Legal Counsel - Subscriptions & Marketing - $178,500 USD + equity https://jobs.ashbyhq.com/duck-duck-go/4ebedcfb-c89f-4cab-bf1... and MORE: https://duckduckgo.com/careers

Cloudflare | Systems or ML Engineer, Workers AI | Austin, TX or London, UK or San Francisco, CA (Hybrid) | Full-Time | https://cloudflare.com Cloudflare is building across the entire AI stack. Here are some exciting things that we have launched recently: - Kimi k2.5: https://blog.cloudflare.com/workers-ai-large-models/ - Kimi Performance Improvements: https://blog.cloudflare.com/high-performance-llms/ - Kimi k2.6 Speculative Decoding and Shared KV Cache: https://x.com/kevin_flansburg/status/2050238819065299110 - Unweight Tensor Compression: https://blog.cloudflare.com/unweight-tensor-compression/ - Code Mode MCP Servers: https://blog.cloudflare.com/code-mode/ - Agents SDK: https://blog.cloudflare.com/building-agents-with-openai-and-... - Agent Memory: https://blog.cloudflare.com/introducing-agent-memory/ - Internal AI Tooling: https://blog.cloudflare.com/internal-ai-engineering-stack/ - Release Cog v0.19: https://github.com/replicate/cog/releases/tag/v0.19.0 - Dynamic Worker Sandboxes: https://blog.cloudflare.com/dynamic-workers/ - Dynamic Workflows: https://blog.cloudflare.com/dynamic-workflows/ We are looking for systems and ML engineers to help build our edge inference platform: - Senior Systems Engineer, Workers AI - https://job-boards.greenhouse.io/cloudflare/jobs/7764827?gh_... - Senior / Principal Machine Learning Engineer, Workers AI- https://job-boards.greenhouse.io/cloudflare/jobs/6297179?gh_...

Shepherd | ONSITE | San Francisco, CA At Shepherd, we're pursuing the most ambitious technical vision in commercial insurance: fully autonomous underwriting. Shepherd is an AI-native commercial insurance platform transforming how high-hazard industries get covered. The infrastructure behind the AI boom (data centers, semiconductor fabs, renewable energy assets) has to be built and insured, but traditional carriers weren't built for this speed. We built Shepherd to solve that. We just recently announced our $42M Series B! That brings our total funding to over $60M — led by Intact Private Capital, the investment arm of one of the largest insurers in the world. Intact is not only our lead investor but also a carrier partner, a testament to the confidence the incumbent industry has in what we're building. (Hear from our CEO here: https://www.shepherdinsurance.com/blog/behind-our-42m-series...) (Hear from our CTO here: https://www.shepherdinsurance.com/blog/the-road-to-autonomou...) This year, we’re growing our engineering team from 25 to 40. We’re looking for product-minded engineers to join us as we continue to scale! We’re looking for someone who thrives on ownership, drives results, and cares deeply about both technical excellence and customer impact. We’re hiring various mid-level, senior-level and staff-level engineers. See some of our openings below: * Full Stack - Job Posting: https://jobs.ashbyhq.com/shepherd/c4081c3d-a79b-4ac9-aa19-78... * Backend - Job Posting: https://jobs.ashbyhq.com/shepherd/395f4b75-cf05-4581-8408-8f... * Founding Machine Learning Engineer - Job Posting: https://jobs.ashbyhq.com/shepherd/797316b4-bdcc-4c0c-8bc2-46... * Applied AI Engineer - Job Posting: https://jobs.ashbyhq.com/shepherd/26959124-aab2-446e-aa4d-72... Our stack includes: Typescript, React, Next.js, GraphQL w/ Apollo, Node.js, Postgres & Redis Apply here: https://shepherdinsurance.com/careers * In the form, be sure to mention that you heard about this opportunity via Hacker News. If you want to read more about our team and culture, check out our blog: https://shepherdinsurance.com/blog If you'd like to join us to celebrate our Series B on May 7th, please register here - we'd be happy to meet you! https://luma.com/b73zin1e?tk=W76nCH

RamAIn (YC W26) Is Hiring Founding GTM Engineer at RamAIn | Y Combinator Open menu About What Happens at YC? Apply YC Interview Guide FAQ People YC Blog Companies Startup Directory Founder Directory Launch YC Library Partners Resources Startup School Newsletter Requests for Startups For Investors Verify Founders Hacker News Bookface Safe Find a Co-Founder Startup Jobs Log in Apply RamAIn Automate any UI task with natural language Founding GTM Engineer $120K - $180K • 0.30% - 1.20% • San Francisco, CA, US Job type Full-time Role Sales Experience 1+ years Visa US citizen/visa only Connect directly with founders of the best YC-funded startups. Apply to role › Shourya Vir Jain Co-founder Shourya Vir Jain Co-founder About the role RamAIn builds the world's fastest computer-use agents for enterprise work. We're a YC W26 company on a mission to eliminate repetitive, manual workflows by training AI agents that operate legacy systems, desktop apps, and web portals the same way humans do — but 10× faster and more reliably. Founders RamAIn was founded by Shourya Vir Jain (CEO) and Vansh Ramani (CTO), who met at IIT Delhi and dropped out to build AI-native automation for enterprise workflows. Shourya previously worked at McKinsey, where he saw firsthand how much enterprise work still depends on manual interaction with legacy systems. He is also a FIDE-rated chess player (2118), was ranked top-20 globally under 16, and previously built and scaled an enterprise AI company to over 6-figures in ARR. Vansh is an AI researcher who worked at CMU on scalable machine learning and representation learning. His research includes publications at ICLR and ACS, and Panaroma, one of the fastest vector search algorithms, later merged into Meta's FAISS. He focuses on building high-performance reasoning and planning systems for real-world deployment. Role We're looking for a technical GTM builder to own our top-of-funnel revenue infrastructure as our first business hire. You'd be the third person working full-time on the

Pelica (YC P25) Is Hiring Machine Learning Engineer at Pelica | Y Combinator Open menu About What Happens at YC? Apply YC Interview Guide FAQ People YC Blog Companies Startup Directory Founder Directory Launch YC Library Partners Resources Startup School Newsletter Requests for Startups For Investors Verify Founders Hacker News Bookface Safe Find a Co-Founder Startup Jobs Log in Apply Pelica Transforming healthcare operations with AI agents Machine Learning Engineer $80K - $150K • San Francisco, CA, US / Remote Job type Contract Role Engineering, Machine learning Experience 1+ years Visa US citizenship/visa not required Skills Amazon Web Services (AWS), Python, Machine Learning, Data Modeling, Data Analytics Connect directly with founders of the best YC-funded startups. Apply to role › Lalit Kundu Founder Lalit Kundu Founder About the role About Us Pelica Health is the operating system for value-based care . We unify claims, EHR, pharmacy, lab, and ADT data into one live record per member, then put an AI copilot next to every team that depends on it, across risk adjustment , Quality and Stars , pharmacy and Part D , provider network, and care management . Read our founder letter: Why we started Pelica Health . Pelica was founded by former engineering and AI leaders from Google and YouTube, including co-founders who built large-scale infrastructure and machine learning systems. You will work alongside people who built massive systems at scale, a chance to learn a lot and contribute meaningfully from day one. We are backed by Y Combinator. We believe in solving hard problems together as a team, iterating quickly, and building software with long-term thinking and ownership. What You'll Do Build and own production machine learning systems end-to-end, from data modeling and feature engineering to training, evaluation, deployment, and monitoring. Design and implement data pipelines that turn raw, messy real-world healthcare data into reliable features for machine learning models. Train and evaluat

Reflex (YC W23) Is Hiring SWEs, Growth, and GTM Roles Jobs at Reflex | Y Combinator Open menu About What Happens at YC? Apply YC Interview Guide FAQ People YC Blog Companies Startup Directory Founder Directory Launch YC Library Partners Resources Startup School Newsletter Requests for Startups For Investors Verify Founders Hacker News Bookface Safe Find a Co-Founder Startup Jobs Log in Apply Reflex The operating system for building mission-critical enterprise apps. Company Jobs 4 https://reflex.dev Jobs at Reflex Growth Lead San Francisco, CA, US $150K - $200K 0.35% 3+ years Apply Now › GTM Lead, Financial Services San Francisco, CA, US $150K - $250K 0.20% - 0.50% 6+ years Apply Now › Software Engineer - Generalist San Francisco, CA, US $120K - $180K 0.10% - 0.30% Any (new grads ok) Apply Now › Lead Software Engineer Infra San Francisco, CA, US $160K - $250K 0.15% - 0.50% 3+ years Apply Now › Why you should join Reflex Reflex is the operating system for building mission-critical enterprise applications. Today’s enterprise stack is fragmented. Shipping an app requires stitching together multiple tools and coordinating across multiple roles. Reflex replaces that complexity with a single, unified platform to build, deploy, and manage production applications end-to-end. We empower teams to own the entire lifecycle of their apps — from idea to production — without needing specialized infrastructure, DevOps, or platform teams. We do this by providing solid, reusable abstractions at both the framework and infrastructure layers. Because we own the underlying open-source framework and the platform it runs on, we can manage the full lifecycle of the application seamlessly. With Reflex, teams securely connect to company data, use AI to build standardized applications on top of our open-source framework, and deploy with a single click to share across their organization. We’re replacing the fragmented enterprise stack — and the organizational bottlenecks that come with it. Why join Reflex now? Growth: Reflex has powered over 1 mill

Sage Care (YC S24) Is Hiring Software Engineers Founding Software Engineer at Sage Care | Y Combinator Open menu About What Happens at YC? Apply YC Interview Guide FAQ People YC Blog Companies Startup Directory Founder Directory Launch YC Library Partners Resources Startup School Newsletter Requests for Startups For Investors Verify Founders Hacker News Bookface Safe Find a Co-Founder Startup Jobs Log in Apply Sage Care Automating home care agency operations with AI Founding Software Engineer $125K - $250K • 0.02% - 2.00% • New York, NY, US / Miami, FL, US Job type Full-time Role Engineering, Full stack Experience 3+ years Visa US citizen/visa only Skills Django, AI Agents Connect directly with founders of the best YC-funded startups. Apply to role › Ian Gillis Founder Ian Gillis Founder About the role About Sage Care Home care agencies run on relationships — but they're drowning in paperwork. Intake coordinators spend hours manually transcribing calls, building care plans, and chasing follow-ups. That overhead slows agencies down and pulls their attention away from the people they're trying to serve. Sage is building the operating system for home care agencies — an AI-native CRM and virtual assistant that turns every client call and home visit into structured care plans, follow-up tasks, and system records, automatically. We integrate directly with the tools agencies already use (WellSky, AxisCare), work on iOS and desktop, and save agencies over 100 minutes per client intake. We're early, well-funded, and signing agencies fast. Now we're looking for the engineers who'll help us build what comes next. Role Responsibilities As one of Sage’s earliest engineering hires, you’ll play a crucial role in shaping our technical foundation and driving the development of our platform. Reporting directly to the CTO, you’ll have a significant impact on the company's trajectory and growth. You will be responsible for: Full-stack Development Implementing agents tailored to the home care industry Designing, developing, and maint

Weave (YC W25) is hiring ML, AI, product, & design engineers Weave Jobs You need to enable JavaScript to run this app.

RentFlow (YC S24) Is Hiring Senior AI/ML Lead at RentFlow | Y Combinator Open menu About What Happens at YC? Apply YC Interview Guide FAQ People YC Blog Companies Startup Directory Founder Directory Launch YC Library Partners Resources Startup School Newsletter Requests for Startups For Investors Verify Founders Hacker News Bookface Safe Find a Co-Founder Startup Jobs Log in Apply RentFlow The AI infrastructure for cash-flow-aligned business rent Senior AI/ML Lead $130K - $200K • 0.50% - 2.50% • San Francisco, CA, US / New York, NY, US / Remote (US) Job type Full-time Role Engineering, Machine learning Experience 3+ years Visa US citizen/visa only Connect directly with founders of the best YC-funded startups. Apply to role › Alix Maurin Founder/CEO Alix Maurin Founder/CEO About the role About RentFlow RentFlow is tackling a hair-on-fire problem for small and medium businesses across the U.S.: the way their rent is paid each month is fundamentally misaligned with how cash actually comes in. We’re building the infrastructure layer to fix that. Today, ~50% of U.S. businesses are late on rent in any given month. The rest face invisible struggles to pay on time, undermining their stability month after month. The core issue is structural: rent hits as a single fixed lump sum on the 1st, stacked on top of every other major monthly bill, while revenue and other expenses flow in unevenly. This forces healthy businesses into recurring cash-flow stress and is a major driver of business closures. RentFlow is the first startup to turn fixed business rent into a cash-flow-synced product, underwritten in real time from transaction-level data to prevent issues before they even surface. This opens up a $20B+ rent-splitting market and creates a natural wedge into an AI CFO layer for businesses and data opportunities we're uniquely positioned to own. We're seed-stage , live since May 2025, and growing ~3x MoM. We're ramping up partnerships with the leading rent payment platforms in the U.S., fast-growing SMB sof

Hive (YC S14) is hiring sr back-end developers (CA/US remote OK) Jobs You need to enable JavaScript to run this app.

Flick (YC F25) Is Hiring Front End Engineer to Build Figma for AI Filmmaking Senior Frontend Engineer at Flick | Y Combinator Open menu About What Happens at YC? Apply YC Interview Guide FAQ People YC Blog Companies Startup Directory Founder Directory Launch YC Library Partners Resources Startup School Newsletter Requests for Startups For Investors Verify Founders Hacker News Bookface Safe Find a Co-Founder Startup Jobs Log in Apply Flick Figma + Cursor, for AI Filmmaking Senior Frontend Engineer $100K - $200K • 0.10% - 1.00% • Sunnyvale, CA, US / Remote Job type Full-time Role Engineering, Frontend Experience 3+ years Visa Will sponsor Skills React, TypeScript Connect directly with founders of the best YC-funded startups. Apply to role › Ray Wang Founder Ray Wang Founder About the role About Us Flick is defining the future interface for AI native filmmaking. Think Figma and Cursor, but for creating AI films. Founded by Engineer who built Instagram Stories + Award winning filmmaker, we are a team of Tech + Artist. Well-funded by top VCs. Checkout our recent launch post Award-winning AI Films created using Flick The Role As our founding front-end engineer, you’ll lead the development of the core experience of Flick — our canvas, timeline, and creative tooling. You will work directly with the founders, and have the opportunity to shape the future interface for AI visual storytelling. What you’ll do Lead the architecture and development of our editor UI from the ground up (canvas, timeline, node graph, playback). Rapidly prototype and iterate on new creative workflows to validate ideas and user experience. Establish best practices for code quality, performance, testing, and maintainability. Collaborate closely with design, product, and AI backend teams to shape the end-to-end user experience. Drive key technical and product decisions as part of the founding engineering team. Requirements Experience owning and leading technical initiatives on high-performance web applications. Strong expertise with modern front-end tooling (React, TypeScript, bu

Circle Medical (YC S15) Is Hiring a Mobile Engineer Mobile Engineer (Android) at Circle Medical | Y Combinator Open menu About What Happens at YC? Apply YC Interview Guide FAQ People YC Blog Companies Startup Directory Founder Directory Launch YC Library Partners Resources Startup School Newsletter Requests for Startups For Investors Verify Founders Hacker News Bookface Safe Find a Co-Founder Startup Jobs Log in Apply Circle Medical Modern primary care via video and in-person Mobile Engineer (Android) $142K - $180K • Montreal, QC, CA / Montreal, Quebec, CA / Remote (US; CA) Job type Full-time Role Engineering, Android Experience 6+ years Visa US citizen/visa only Skills Android, iOS, Kotlin, Swift Apply to Circle Medical and hundreds of other fast-growing YC startups with a single profile. Apply to role › About the role About Us We are a virtual-first primary care organization reimagining how people access and experience healthcare. Our mission is to deliver comprehensive, high-quality, and compassionate care that integrates technology, data, and human connection through a seamless digital platform complemented by in-person visits when needed. While our care is provided exclusively to patients in the United States, our team is distributed across the United States and Canada, bringing together clinicians, technologists, and operators who share a commitment to making high-quality healthcare delightful, personal, and accessible to everyone. Description At Circle Medical, we’re redesigning primary care for the modern world. By combining technology, AI, and thoughtful design, we provide a vastly improved physician and patient experience. Our Android and iOS app already serves 30,000+ patients every month, with a 4.8-star rating from 30,000+ reviews on iOS and 4.6-star rating from 5,000+ reviews on Android. As a Senior Mobile Engineer, you will own the technical roadmap for our app and collaborate closely with designers, clinicians, and engineers to deliver features that directly improve how people access healthcare. Respo

ParadeDB is building a cloud! We're a Postgres extension that enables state-of-the-art full-text and vector search inside Postgres. Up until now, we've focused exclusively on our core database and haven't built any managed service to deliver it. This is changing, and we're looking for a seasoned distributed systems/platform engineer to help us build it. The ideal candidate has experience with Kubernetes, Go, and Postgres. We're a Series A company of 10 people distributed across the US. Our project is open-source at https://github.com/paradedb/paradedb More details: https://paradedb.notion.site/

Cekura (YC F24) Is Hiring Forward Deployed Engineer (US) at Cekura | Y Combinator Open menu About What Happens at YC? Apply YC Interview Guide FAQ People YC Blog Companies Startup Directory Founder Directory Launch YC Library Partners Resources Startup School Newsletter Requests for Startups For Investors Verify Founders Hacker News Bookface Safe Find a Co-Founder Startup Jobs Log in Apply Cekura Voice AI and Chat AI agents: Testing and Observability Forward Deployed Engineer (US) $100K - $180K • San Francisco, CA, US Job type Full-time Role Engineering, Machine learning Experience 1+ years Visa US citizen/visa only Connect directly with founders of the best YC-funded startups. Apply to role › Tarush Agarwal Founder Tarush Agarwal Founder About the role About Cekura Cekura is building the infrastructure for self-improving conversational agents . Teams use Cekura to test, monitor, debug, and improve AI agents across voice, chat, SMS, phone, and web. We help them catch failures in latency, barge-in, tool calls, hallucinations, instruction-following, regressions, and production workflows. We’re YC F24, growing fast, backed by top investors, and working with teams deploying AI agents in the real world. About the Role We’re hiring a Forward Deployed Engineer to work directly with technical customers and help them get value from Cekura. You’ll sit at the intersection of customers, product, engineering, and GTM. Your job is to deeply understand how customers build agents, help them create self-improving loops with Cekura, and turn those learnings into better product and better process. What You’ll Do Embed deeply with customers Work with customers to understand their agent workflows, onboard them well, and help them build continuous loops across testing, monitoring, debugging, and improvement. Automate product insights Build systems and workflows that show how customers use Cekura, where they get value, where they get stuck, and where we should help next. Drive product direction Turn customer learn

Typewise (YC S22) Is Hiring an AI Growth Engineer (Zurich or Remote) AI Growth Engineer at Typewise | Y Combinator Open menu About What Happens at YC? Apply YC Interview Guide FAQ People YC Blog Companies Startup Directory Founder Directory Launch YC Library Partners Resources Startup School Newsletter Requests for Startups For Investors Verify Founders Hacker News Bookface Safe Find a Co-Founder Startup Jobs Log in Apply Typewise Boosting customer service and sales productivity by 2-3x. AI Growth Engineer €5K - €6K EUR / monthly • 0.10% • Zürich, ZH, CH / Zürich, Zurich, CH / Remote Job type Contract Role Marketing Experience Any (new grads ok) Visa US citizenship/visa not required Skills Growth design Connect directly with founders of the best YC-funded startups. Apply to role › David Eberle Founder David Eberle Founder About the role Customer service is being rebuilt from scratch, and we’re building the platform that wins it. Typewise (YC S22) is the AI Agent Platform behind 60+ enterprise customer service teams across Europe and the US. Brands like Unilever and DPD use us to resolve customer requests across email, chat, and social, autonomously, at a fraction of the cost and a multiple of the quality. We’re a 20-person remote-first team out of Zurich, moving fast, and we just raised the round to push harder. Here’s the challenge: when a CS leader sits down today and types “best AI customer service platform” into Google, they find Fin/Intercom. They find Zendesk. They don’t find us. Yet. That’s the job. Who you'll work with You’ll report directly to David (CEO, ex-Booz Allen strategy) and work alongside Janis (CTO, deep tech NLP). No marketing VP layer. No approval chains. Two founders who’ve built the company from a research project to 50+ enterprise customers and who now need someone to make the world find what they’ve built. You’ll have direct access to decisions, budget, and the full team. Role Overview As AI Growth Engineer , you own one outcome: make CS buyers find Typewise through any creative, non-paid, AI-powered means th

Kyber (YC W23) Is Hiring a Founding Marketer Founding Marketer (Content Community) at Kyber | Y Combinator Open menu About What Happens at YC? Apply YC Interview Guide FAQ People YC Blog Companies Startup Directory Founder Directory Launch YC Library Partners Resources Startup School Newsletter Requests for Startups For Investors Verify Founders Hacker News Bookface Safe Find a Co-Founder Startup Jobs Log in Apply Kyber Instantly draft, review, and send complex regulatory notices. Founding Marketer (Content Community) $90K - $130K • 0.01% - 0.10% • New York, NY, US Job type Full-time Role Marketing Experience 3+ years Visa US citizen/visa only Skills Growth design, Marketing design Connect directly with founders of the best YC-funded startups. Apply to role › Arvind Sontha Founder Arvind Sontha Founder About the role About Kyber With Kyber, companies operating in regulated industries can quickly draft, review, and send complex regulatory notices. For example, when Branch Insurance's claims team has to settle a claim, instead of spending hours piecing together evidence to draft a complex notice, they can simply upload the details of the claim to Kyber, auto-generate multiple best in-class drafts, easily assign reviewers, collaborate on notices in real-time, and then send the letter to the individual the notice is for. Kyber not only saves these teams time, it also improves overall quality, accountability, and traceability. About the role We're seeking a Founding Marketer to own and scale our Content Community motion. If you’re a creative operator who uses AI to multiply their output, brings creative energy to everything from conference pop-ups to thought leadership, and thinks that's boring is the worst critique, we want to talk. Skills : Event production, content strategy creation (video case studies, thought leadership, social media, podcasts), community building, conference logistics, and AI-powered marketing automation At Kyber, we're building the next-generation document platform for enterprises. Today, ou

SigNoz (YC W21, open source Datadog) Is hiring for growth and engineering roles SigNoz Jobs You need to enable JavaScript to run this app.

Infracost (YC W21) Is Hiring Sr Dev Advocate to make agents cloud cost-aware Senior Developer Advocate at Infracost | Y Combinator Open menu About What Happens at YC? Apply YC Interview Guide FAQ People YC Blog Companies Startup Directory Founder Directory Launch YC Library Partners Resources Startup School Newsletter Requests for Startups For Investors Verify Founders Hacker News Bookface Safe Find a Co-Founder Startup Jobs Log in Apply Infracost Shift FinOps Left: Proactively Find Fix Cloud Cost Issues Senior Developer Advocate $180K - $200K • US / CA / Remote (US; CA) Job type Full-time Role Marketing Experience 6+ years Visa US citizen/visa only Connect directly with founders of the best YC-funded startups. Apply to role › Ali Khajeh-Hosseini Founder Ali Khajeh-Hosseini Founder About the role Overview The spend on public cloud is fast approaching $1 trillion per year - we estimate this boundary will be crossed before the turn of the decade. Infrastructure-as-Code (e.g. Terraform, CloudFormation, CDK) and platform engineering have fundamentally changed who makes spending decisions. In the past, only a central team provisioned cloud resources. Now every engineer can provision resources as needed; every engineer has become a buyer. Infracost helps engineers see the cost of their code changes before any money has been spent - we sit in the engineering workflow, show the cost impact, and suggest optimizations. That’s what we mean by “Shift FinOps Left”, and we’ve seen strong pull from engineers who use Infracost in their terminals, CI/CD pipelines and IDEs. The Infracost CLI repo has 12K stars on GitHub! There’s a massive opportunity to help organizations proactively manage their cloud spend; rather than reacting to surprise cost spikes after the fact. We know reactive is too late; we saw that firsthand with our first startup a decade ago, and we’re building Infracost to change that. About the role We’re hiring our first Developer Advocate to help more engineers discover and fall in love with Infracost. Your mission is simple: increase signup

Terranox AI (YC W26) Is Hiring a Founding AI/ML Engineer and Summer AI/ML Intern Jobs at Terranox AI (W26) | Y Combinator&#39;s Work at a Startup

Substrate (YC S24) Is Hiring a Technical Success Manager Technical Success Manager at Substrate | Y Combinator Open menu About What Happens at YC? Apply YC Interview Guide FAQ People YC Blog Companies Startup Directory Founder Directory Launch YC Library Partners Resources Startup School Newsletter Requests for Startups For Investors Verify Founders Hacker News Bookface Safe Find a Co-Founder Startup Jobs Log in Apply Substrate Artificial Intelligence for your medical billing team Technical Success Manager $100K - $130K • 0.01% • San Francisco, CA, US Job type Full-time Role Engineering, Backend Experience 3+ years Visa US citizen/visa only Connect directly with founders of the best YC-funded startups. Apply to role › Ayo Omojola Founder Ayo Omojola Founder About the role About Substrate Substrate ( www.substrate.cc ) is building the world’s first AI native BPO, starting with healthcare RCM. We’re focused on helping healthcare enterprises like physician groups, EMR providers, and BPOs accelerate AR, and get reimbursed quickly and cost effectively. We already touch over 500k healthcare claims each month. The Role We're looking for an Technical Success Manager to to make client experiences magical. This involves deeply understanding client needs, leaders, and processes, our interfaces with client systems, and the underlying stack used to support them. You’ll help clients run down problems and help engineers explore new opportunities with clients, and you’ll help clients understand how agents are working in production, and understand their data. This is a role for someone who finds vague answers unsatisfying, and derives deep pleasure from enabling clients to be more successful. What You'll Work On Own the Client Relationship: Primary point of contact for clients from pilot through expansion. Build trust with operators and executives by showing up with answers, not ticket numbers. Investigate and Diagnose: Take customer-reported anomalies all the way to root cause, without waiting for an engineer to guide you. Query producti

Bild AI (YC W25) Is Hiring Founding Product Engineers Bild AI Jobs You need to enable JavaScript to run this app.

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Mux (YC W16) Is Hiring Join The Best Team in Video Tech | Mux Skip to content Mux Logo Toggle Mux Brand Popover Toggle navigation menu X Product Caret Solutions Caret Developers Caret Pricing Blog Talk to us Talk to us Log in Log in We're building the future of video infrastructure Our Mission Mux is video for developers. Our mission is to democratize video by solving the hard problems developers face when building video: video encoding and streaming (Mux Video), video monitoring (Mux Data), and more. Video is a huge part of people’s lives, and we want to help make it better. We’re committed to building a healthy team that welcomes a diverse range of backgrounds and experiences. We want people who care about our mission, are ready to grow, believe in our values (from Be Human to Turn Customers Into Fans), and want to make the people around them better. You’ll be joining a tight-knit team with experience at places like Google, YouTube, Twitch, Zencoder, Fastly, and more. Our founders previously started (and sold) Zencoder, an early leader in cloud video technology, and authored Video.js, the biggest HTML5 video player on the web. We organize Demuxed, the premiere conference for video engineers in the world. We’re backed by top investors like Coatue, Accel, Andreessen Horowitz, and Y Combinator. You’ll get to work with amazing companies: hundreds of startups, plus Reddit, Vimeo, Robinhood, CBSi, Discovery, PBS, and TED. Customers large and small love working with us and love our team. We are building something big together. We’d love to hear from you! Company Values Eyeball Care obsessively Every frame matters. Smiley Face Be human We are humans first and believe there is more to life than work. Lightning Do a lot with a little Look for ROI on time and money. We are a startup after all. Chat Be clear and direct Good communication leads to good thinking (and vice versa). Heart Customers = fans Always look for opportunities to delight our users. Fast Forward Bias for action Don’t wait fo

GovernGPT (YC W24) Is Hiring Engineers to Build Thinking Systems in Montreal Backend Engineer, Thinking Systems at GovernGPT | Y Combinator Open menu About What Happens at YC? Apply YC Interview Guide FAQ People YC Blog Companies Startup Directory Founder Directory Launch YC Library Partners Resources Startup School Newsletter Requests for Startups For Investors Verify Founders Hacker News Bookface Safe Find a Co-Founder Startup Jobs Log in Apply GovernGPT The RFP Platform Asset Managers Adopt Backend Engineer, Thinking Systems $115K - $175K CAD • 0.25% - 0.75% • Montreal, QC, CA / Montreal, Quebec, CA Job type Full-time Role Engineering, Backend Experience 1+ years Visa US citizenship/visa not required Skills Kubernetes, Nginx, PostgreSQL, Python, Docker, Natural Language Processing, Software Architecture, Software Security, Prompt Engineering Connect directly with founders of the best YC-funded startups. Apply to role › Oliver Walerys Founder Oliver Walerys Founder About the role About the Team We’re a YC-backed, profitable startup that’s building agents to automate the most manual, critical function of managing multi-billion dollar investments - fundraising. Every day, Tier 1 funds rely on our product to close new and update existing investors. We build with the newest tools. Every role within our tight-knit, all-engineers team has incredible autonomy to go out and delight our users. If you want to go all in on coding agents, build knowledge graphs, or explore novel async ways of ingesting data at scale, you can do that here - everything we do is innovative at its core. This is just the start, we have much bigger plays planned in partnership with our customers to change how trillions of dollars of private capital is allocated in global financial markets. About the Role Our users rely on reasoning systems enabled in large part by a metadata-enriched database and scalable backend, to trust the decisions AI makes to automate real work. Of the 3 pillars we prioritize in our technical org for realizing agents (reasoning, database, and interfac

Coverage Cat (YC S22) Seeks Fractional Engineer to Build AI Growth Toolkit Fractional Growth Engineer (Contract) - Coverage Cat | Coverage Cat Types of insurance How to buy insurance What we do Reviews Calculators Compare Quotes Shop Log In Types of Insurance How to Buy Insurance What We Do Calculators Careers Fractional Growth Engineer (Contract) Fractional Growth Engineer (Contract) Engineering • Contract Ready to join our team? Apply Now Job Details Experience Required: Entry level Salary Range: $15 - $25 Seeking a self-starter for a fractional role. Currently NOT accepting applicants from: CA, MA, NJ, OR, WA, CT, IL, RI, MD, MI, NH, HI. Role is to support the team with organic growth engineering implementation and operations. This can range from designing AI tools for growth to hiring folks to do in-person canvassing off Craigslist! Growing the world's AI-native insurance broker still takes some IRL effort. Anyone with a growth mindset and a willingness to overcome operational obstacles to ensure experiment success are encouraged to apply. Opportunities for additional incentive pay. Please, only apply via the YCombinator Work-at-a-Startup application button above. Emailed applications will be discarded. Posted: May 05, 2026 | Last Updated: May 05, 2026 More Career Opportunities Coverage Cat How to Buy Insurance Online (Our Blog) FAQ Glossary Our Team Calculators Carrier price comparison Should I buy collision and comprehensive coverage Should I file a claim Home insurance calculator Umbrella insurance calculator Legal Terms of Service Privacy Policy Refund Policy Fulfillment Policy Copyright © 2026 Coverage Cat. All rights reserved. Customer service: support@coveragecat.com Coverage Cat, Inc. is a licensed insurance broker (or producer). In California Coverage Cat does business under the name Coverage Cat Insurance Services. Coverage Cat's license numbers are listed here. Coverage Cat places insurance with a number of insurance companies, each of which is not an affiliate of Coverage Cat. Insurance Company Reviews QBE Insurance Review

Proliferate (YC S25) Is Hiring- 200k for junior engineers Founding Engineer at Proliferate | Y Combinator Open menu About What Happens at YC? Apply YC Interview Guide FAQ People YC Blog Companies Startup Directory Founder Directory Launch YC Library Partners Resources Startup School Newsletter Requests for Startups For Investors Verify Founders Hacker News Bookface Safe Find a Co-Founder Startup Jobs Log in Apply Proliferate Manage a team of agents from your desktop Founding Engineer $200K - $350K • 0.50% - 2.00% • San Francisco, CA, US Job type Full-time Role Engineering, Full stack Experience Any (new grads ok) Visa Will sponsor Connect directly with founders of the best YC-funded startups. Apply to role › Pablo Hansen Founder Pablo Hansen Founder About the role About Proliferate Proliferate is building the operating system for modern engineering. We are building the company in person in SoMa, San Francisco. We care a lot about intensity, craft, and working with people who want to do the best work of their careers. We work hard, and we also take health seriously: company-expensed Whoop, meaningful health and wellness budget, and top-tier insurance. About the Founder I (Pablo) finished my master's in AI at 19 and joined Onyx (YC W24) as engineer #1, where I spent a year building enterprise AI search before starting Proliferate. You can see what I shipped there here . We’ll be working closely together. About the Role You’d be one of our first engineering hires and build the core product. This is a high-ownership role across product, systems, and user experience. Example work: Build a new core workflow end to end across agent runtime, product UI, and cloud infrastructure. Design and ship a new interface for human-agent collaboration made possible by a model capability that landed last week. Turn a rough customer pain point into a polished product surface in days. Re-think how engineering teams review, redirect, and trust agent work before merge. Who We’re Looking For We have an extremely small, flat, talent-dense team. We v

CollectWise (YC F24) Is Hiring Senior Forward Deployed Engineer at CollectWise | Y Combinator Open menu About What Happens at YC? Apply YC Interview Guide FAQ People YC Blog Companies Startup Directory Founder Directory Launch YC Library Partners Resources Startup School Newsletter Requests for Startups For Investors Verify Founders Hacker News Bookface Safe Find a Co-Founder Startup Jobs Log in Apply CollectWise Automating consumer debt collection with AI Senior Forward Deployed Engineer $240K - $300K • 0.10% - 1.00% • New York, NY, US Job type Full-time Role Engineering, Full stack Experience 1+ years Visa US citizen/visa only Connect directly with founders of the best YC-funded startups. Apply to role › Sean OBrien Founder Sean OBrien Founder About the role About Us CollectWise is a fast growing and well funded Y Combinator-backed startup. We’re using generative AI to automate debt collection, a $35B market in the US alone. Our AI agents are already outperforming human collectors by 2X, and we’re doing so at a fraction of the cost. With a team of five, we scaled to a $2 million annualized run rate in just a few months, and we are now hiring a Senior Forward Deployed Engineer to help us reach $10 million within the next year. Role We are hiring a Senior Forward Deployed Engineer to lead customer implementations end-to-end. You’ll work at the intersection of engineering and operations, building the integrations and technical systems that bring clients into production. This role blends software engineering with hands-on customer work. You’ll thrive here if you enjoy ambiguity, love shipping quickly, and can translate business requirements into robust, testable systems. This is a highly visible, high-ownership role working closely with the founder and clients. Responsibilities Build and maintain custom integrations with client systems. Configure and productionize AI agents for each client (prompts, workflows, data transfers). Develop and implement client solutions using modern back-end frameworks.