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.
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
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
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
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...
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.
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
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/
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.
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.
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.
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.
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
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.
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!
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.
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.)
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.
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.