Treat Health | Full-stack Engineer (Elixir, Phoenix LiveView, React) | Helsinki, Finland | ONSITE | Full-time | Compensation in the link below

Treat Health is building healthcare where the right care takes minutes, not days. You describe your concern in your own words, our smart intake asks the follow-up questions a doctor would ask, and a licensed doctor reviews the whole picture and decides on the care. Prescriptions and records go straight to Kanta, Finland's national health archive.

Right now, agentic frontend engineering and agentic mobile app development matter most to us. We expect you to work across the whole stack, with our assistance and tooling.

Stack: Elixir, Phoenix LiveView, React, TypeScript, Tailwind, GCP, Cloudflare and Rust, with Swift and Kotlin for our native mobile apps. Claude is part of everyday work, from planning and coding to review. We care about how well you direct coding agents, not how fast you type.

Small team, high trust: you own problems end to end, with real influence on what we build. Health data stays in the EU, every sign-in uses strong identification, and patient data never ends up in logs.

For now, working on site in Helsinki is a must, and we can't offer relocation or visa support, so you need to already be able to work in Finland. We may hire remotely in the future, so check back later.

Compensation, details and how to apply: https://treat.health/en/careers/full-stack-engineer/

3Gimbals | https://www.linkedin.com/jobs/view/4477632187 (US/Remote)

Hiring entry / mid-level full stack swe's with strong experience with Python, React/TypeScript, CSS, REST APIs, SQL/PostgreSQL, and experience with LLMs, RAG, prompt engineering, and AWS cloud.

We are a small team doing a cool mix of application dev on our webapp OMEN, etl stuff, and harness engineering. If interested apply!

Requirement: US Citizenship, Ability to obtain government clearance

Salary: $120k-$160k depending on experience

GovStar | https://govstar.us | Remote (U.S. Eastern/Central Time) | Senior Full Stack Python Developer | U.S. Citizenship Required

GovStar is hiring a Senior Full Stack Python Developer to build secure, production-grade AI applications supporting U.S. national security initiatives.

This is a hands-on role for an experienced engineer who wants to stay close to the code, spending the majority of their time developing software.

We’re looking for strong experience with Python, React/TypeScript, CSS, REST APIs, SQL/PostgreSQL and NoSQL databases, plus experience with LLMs, RAG, prompt engineering, and cloud platforms such as Azure or AWS.

Relevant technologies: Python, React, TypeScript, Azure OpenAI, PostgreSQL, CosmosDB, Docker, Kubernetes, GitLab CI/CD, LLMs, and RAG.

Requirements: U.S. citizenship • U.S. resident • Reside in Eastern or Central Time Zone • Ability to obtain government clearance • BA/BS + 15 years relevant experience (experience may substitute for education).

Compensation varies by experience and demonstrated technical capability. We’re happy to discuss compensation expectations early in the process so neither side wastes time.

GovStar benefits include medical, dental, and vision coverage; 401(k) matching; paid time off; and an employee shares program.

To apply, email your resume and GitHub profile to nicholas.hanson@govstar.us

Please mention “Hacker News” and “Senior Full Stack Python Developer” in the subject line.

Location: Bangalore, India (IST, UTC+5:30)

Remote: Yes

Technologies: React Native, React, Next.js, TypeScript, JavaScript, Node.js, Express, MongoDB, Redux, Astro, Expo, Zustand, Fastlane, GitHub Actions, AWS, Jest, Gemini API, Azure OpenAI, Claude Code, Cursor

Resume/CV: https://drive.google.com/file/d/1banj1xCIv-wA9n7xUG4vkelBbFu... Portfolio: https://lassiecoder.com/ GitHub: https://github.com/lassiecoder LinkedIn: https://www.linkedin.com/in/lassiecoder Email: hirepriyankasharma@gmail.com

Mobile + web engineer with 6 years shipping consumer and fintech products end to end. Currently SDE2 at Zataverse (LA-based, working async from India).

Some things I've shipped: - Imaige (https://imaige.io): built the site from scratch, including auth, payment gateway integration and onboarding, improving checkout reliability - Socialaize and Staryo: OAuth/social sign-in, push notifications, production stability fixes - Adecco app (700K+ daily users): white-label onboarding, eKYC; automated releases with Fastlane + GitOps (60% faster) and PR checks with GitHub Actions (40% less review overhead) - Torum Pay: notifications + deep linking, cut app crashes 30% - EduFund: KYC for Indian and US investment accounts, push notifications that lifted new-user activity 47%

Also: author of "AI + Gemini for Web Developers" (e-book), and spoke at Microsoft Bangalore on taking Azure OpenAI integrations to production. https://fable.co/book/x-9798231622320

Looking for: a remote React Native / frontend / product engineer role at a product-focused team, ideally where AI features are part of the product. Happy to own features end to end.

Location: Tbilisi, Georgia (GMT+4)

Remote: Yes (required)

Technologies: Ruby on Rails, Elixir, Phoenix, React, React Native, Node.js, TypeScript, PostgreSQL, Redis, AWS, LLM/AI

Website: https://davit.cc

Resume/CV: https://davit.cc/cv/v4.pdf

LinkedIn: https://linkedin.com/in/dkhaburdzania

GitHub: https://github.com/davit-khaburdzania

Email: davit.khaburdzania@gmail.com

3x founding/first engineer with 15+ years shipping products from zero to scale. Most notably: founding engineer at EverAI — joined at zero, built nearly every core feature, grew to 20M users and $5M/month revenue. Pioneered production AI pipelines across LLMs, image generation, voice synthesis, and video — not API wrappers, full systems.

Also: first eng at Shogun (YC W16, became category-leading Shopify app), CTO at AirHelp (concept to launch in 5 months), founded and scaled a 20-person dev agency. Most recently built an ad platform at TurbaMedia from zero to $24M+ annual spend in 6 months.

Looking for: Early-stage startup where I can own product areas and work directly with founders. I've built entire products solo — I don't need hand-holding, I need interesting problems. Fully remote.

Propel Labs | Staff Full-Stack Engineer, Quality & Delivery | Remote (North America hours) | Full-time | https://propellabs.ai

Hello HN, Lisa here from Propel! We're a bunch of interdisciplinary builder-maker-designers leading a venture studio and building software for mining and deep-tech companies. Think IDEO for AI: a small senior team, direct CEO involvement, technical depth married with design craft. We are not a dev shop and not a consultancy, we're not about scope or hours, we're only about outcomes. We embed through the lifecycle of challenges and the same senior people stay on the problem.

AI agents have made engineering throughput cheap, so senior judgment is now the scarce asset: what to build, what to gate, what to trust to production. We're looking for an experienced engineer to join our small crew and play a ~70/30 build-to-lead role: - Raise the team’s bar without bureaucracy - Ship production code - Be the human PR review - Own the quality delivery system as a product - Ship spec-first - Orchestrate AI at staff level

Stack: TypeScript, React, Python, PostgreSQL, ECS/Lambda, Terraform.

We work on fascinating projects with physical implications to the world but more importantly we just really don't work with a*holes, I wake up happy to see my colleagues, the crew loves to laugh and we walk the walk.

Full role details: https://docs.google.com/document/d/1R7rPplGTziBmvnKSocRRQ5Pg...

Email lisa@propellabs.ai with a PR, design doc or postmortem you're proud of, and why this role. Always happy to jump on short calls for a mutual sus-out. It's a call for adventure, after all.

OneChronos | Engineering Manager, Data Platform (NYC, Hybrid) · Software Engineer, Quality / SDET (Flexible/U.S. Remote) | Full-Time

We’re a Series B trading technology company reimagining how financial markets match buyers and sellers -- applying auction theory and innovative technologies to build fairer, more efficient trading infrastructure. Our production systems are written in Rust and execute billions of dollars in securities transactions daily. If you want to work on genuinely hard problems at the intersection of markets, mechanism design, and distributed systems, we’d love to talk.

We’re hiring engineering talent companywide, with a current emphasis on these two roles:

Engineering Manager, Data Platform -- Lead and grow our data engineering team while staying close to the code. You’ll own the roadmap for the pipelines, data services, orchestration, and platform infrastructure that power our analytics, and contribute to production systems alongside your team. 8+ years of software or data engineering experience, 2+ managing engineers. Strong Python, SQL, Rust, and TypeScript. Experience with workflow orchestration (Temporal, Airflow, Dagster or similar) and columnar formats (Parquet, Arrow). Financial markets or exchange experience a strong plus. NYC-based, hybrid.

ESTIMATED COMPENSATION: $180,000--$250,000 depending on experience, with eligibility for a discretionary annual bonus.

Software Engineer, Quality (SDET) -- Build the quality engineering function from the ground up. You’ll design and own automated test frameworks, CI/CD integrations, staging environments, and validation tooling that help engineers ship with confidence. Proficiency in a systems-level language (Rust, C++, Go, or Java) and Python required. Experience in low-latency or performance-sensitive environments a strong plus. Flexible/U.S. remote.

ESTIMATED COMPENSATION: $150,000--$200,000 depending on experience, with eligibility for a discretionary annual bonus.

CONTACT: careers@onechronos.com -- please send your resume and include the role name and “HackerNews” in the subject line (e.g. “Engineering Manager, Data Platform | HackerNews”).

Ojin | Lead Platform Engineer | HYBRID (Berlin) or REMOTE (CET ±2h) | Full-time

Hi HN! I'm Seema, part of the team at Ojin, and we're looking for our next Lead Platform Engineer.

We build AI agents that look and sound human - real face, real voice, real-time conversation. The kind of thing that makes people ask if it's actually live the first time they see it. Getting there means solving latency at a level most infrastructure can't touch, running custom frontier models for lipsync and face generation, and orchestrating all of it live across a globally distributed GPU fabric we own and operate ourselves.

This isn't a role where you maintain what someone else built. The hard problems are still open: dynamic routing and load balancing across thousands of concurrent GPU servers spanning multiple clouds and regions, keeping latency low enough that conversation feels natural, and deployment pipelines that can keep up with a product that's moving fast.

You'd set the technical direction for all of it, working directly with the founders on a 15-person team. No layers between you and the decisions that matter.

If you've worked on distributed systems at scale, care about how things are built and not just that they work, and want real ownership rather than a slice of someone else's architecture — we'd love to hear from you.

Stack: AWS, TypeScript or Go, Terraform/Pulumi/AWS CDK, Docker, serverless architectures.

Looking for: 5+ years hands-on AWS in production, strong IaC, multi-cloud experience, low-latency systems, and startup experience.

We're not able to offer relocation or visa sponsorship. If you're already in Berlin, this is a hybrid role. If you're elsewhere, we're open to fully remote within CET ±2h. Applications outside these criteria won't be progressed.

Apply or read more at https://ojin.ai and please mention you found us on Hacker News in your application. We're also hiring across sales and marketing.

Superset (YC P26) | Founding Engineer, Founding Design Engineer | San Francisco | ONSITE | Full-time | $175K-$225K + 1.0-1.5% equity | https://superset.sh/careers

We're building a self-improving IDE for running coding agents in parallel. Tens of thousands of engineers use it as their main IDE, at companies like Netflix, DoorDash and Wix. It's source-available: https://github.com/superset-sh/superset

We're 4 people, including 3 ex-YC CTOs. The work goes from the pty and stream transport up to the UI, all TypeScript. You'd own big features end to end and likely ship something in your first week.

Interviews: a 15 min call, 1 hr TypeScript, 1 hr system design, then a week with us in SF. We tell you where you stand within 48 hours of each step.

Email me: kiet@superset.sh

Cleverbase | https://cleverbase.com/ | The Hague, Netherlands | ONSITE (hybrid) | Full-time

Cleverbase runs an API platform for online trust: qualified e-signatures, PKI, digital identity and high-assurance identity onboarding for European organisations. We’re now building towards the EU Digital Identity Wallet and the European Business Wallet. Helping customers design and ship their solutions on our platform matters as much to us as building the platform itself.

As a Qualified Trust Service Provider under eIDAS, what we ship has to be demonstrably correct, auditable and secure, and we still deploy frequently. We go beyond compliance by applying modern cryptography to better protect personal data, because our mission is everyone secure online.

Stack: JVM (Scala with Cats/Cats-Effect, http4s, fs2, doobie), gRPC, Postgres and HSMs for the trust services; TypeScript (React, NestJS, oRPC, Drizzle, Playwright) for web; standards like JSON/XML/PDF signatures and OpenID. Experience with this exact stack isn't required, but interest in cryptography or digital identity is.

Roles currently available:

Web Engineer (Medior): https://cleverbase.com/en/careers/web-engineer-medior/

Web Engineer (Senior): https://cleverbase.com/en/careers/web-engineer-senior/

Solution Engineer (Medior): https://cleverbase.com/en/careers/solution-engineer-medior/

Apply: email recruitment@cleverbase.com with your CV and a short note, and mention that you found us through this HN post from the CTO.

Mastra | AI Engineer | REMOTE (AMER or EMEA time zones) | Full-time Mastra is the open-source TypeScript framework for building AI agents (agents, workflows, memory, evals, tracing). From the team behind Gatsby, YC-backed, https://github.com/mastra-ai/mastra

Why: We’re starting to build more and more agentic features into Mastra: Trace intelligence, and we’re working on various Agent Learning features to automatically self-improve agents (Autoevals + Suggestions, Rollouts). In addition, we’ve been increasingly running Mastra primitives like memory on industry-standard benchmarks and using the results to fine-tune configuration.

You have: Shipped agents and agentic applications into production Tuned and tweaked them to improve accuracy You need to be able to benchmark your results against existing datasets, or intelligently creating

Apply: {https://jobs.ashbyhq.com/mastra/531a3fe8-556f-4b83-bee7-2037...} We get back to everyone.

Flowstate (London, UK) — Founding Engineer — TypeScript / React / Postgres / AI

Flowstate (https://www.flowstate.inc) is building infrastructure for the emerging human + AI workforce.

Companies are rapidly adopting Claude, ChatGPT, Cursor, Copilot and internal agents, but most still have very little idea what that AI is actually doing, what it costs, what work it contributes to or whether it is making the organisation better.

We’re building the systems underneath that: an AI router and proxy, native macOS and Windows apps, attribution infrastructure that connects AI activity back to work and tools for understanding how humans and AI should operate together inside a company.

We’re a small early-stage team and this is a genuinely broad founding engineering role. You’ll work across product, infrastructure, integrations, desktop apps, AI systems and whatever else needs building. We’re looking for someone who has worked in an early-stage startup before and actually enjoys the pace, ambiguity and ownership that comes with it.

Details: - Location: London, UK - Working style: Hybrid, with regular time together in the office - Salary: £100k–£120k - Equity: 0.5%–1.5% - Benefits: Gym membership, breakfast and flexible hours - Role: Full-time

Apply: https://www.flowstate.inc/careers/

Manifest | https://www.manifestcyber.com/ | REMOTE (US) | Full Time

Manifest is on a mission to secure the global software and AI supply chain. Our platform automates discovery and risk analysis across the software and AI systems organizations build and buy—SBOMs, AIBOMs, vulnerabilities, and third-party risk. Founded by alumni of DoD, CISA, and Palantir, we're backed by First Round Capital, Ensemble VC, Homebrew, and BoxGroup, and we work with the US Air Force, DHS, Global 2000 companies, and critical infrastructure organizations.

Roles currently available:

Senior Backend Application Engineer | $150K–$210K + equity — Build user-facing product features and the services behind them on our next-generation platform. TypeScript/Node, Go, Python, MongoDB. Looking for engineers who've shipped features end-to-end at B2B SaaS companies and care about both the product and the architecture: https://job-boards.greenhouse.io/manifest/jobs/4398657009

Senior Infrastructure Engineer | $150K–$210K + equity — Own how Manifest gets deployed everywhere our customers are: cloud, on-prem, and air-gapped. Kubernetes, Terraform/Helm, CI/CD with security built in. Bonus for FedRAMP/government or air-gapped packaging experience (Zarf, etc.): https://job-boards.greenhouse.io/manifest/jobs/4399435009

More listings here: https://job-boards.greenhouse.io/manifest

US work authorization required. If you came from this thread, please mention HN in your application.

Fig | Founding Engineer | San Francisco (hybrid) | $220k-$280k + meaningful equity

Fig is hiring its founding engineer.

Fig builds software for industrial ingredient processors, the companies between farmers and the food brands you buy. Most of them still run on paper binders: production schedules, sanitation checks, quality logs. Tech has mostly ignored them.

This is a high-ownership seat. You'll work directly with the founders, who come from food, to build a platform that pulls together fragmented food-industry data, then the AI layer on top of it. Think Glean for the food industry. Customers who signed on as design partners a year ago are still here and still shape the roadmap.

Stack: Kotlin, React, TypeScript, GCP, Postgres, Terraform.

Fig is collaborating with Scout (https://www.scoutintro.com) to meet engineers. Book a coffee chat to learn more: https://calendly.com/lucia-scoutintro

InfoHawk | Software Engineer | London, UK or NYC | HYBRID (UK or US), occasional onsite | Full-time | https://www.infohawk.com

Fraud reaches people through ads, cloned brand sites, counterfeit shops and AI-generated video, and it moves faster than any manual review. InfoHawk detects it while it is still running, correlates it across platforms and formats, and surfaces it early enough for our customers to act. We are a small team of engineers plus security, privacy and fraud specialists. Pre-seed, $2.25M led by Moonshots Capital: https://www.infohawk.com/news/2026-06-08-pre-seed-funding-an...

You’d own how data gets in: scrapers and collectors that survive source changes, official APIs where they exist, undocumented endpoints where they don’t. Sources break constantly. Can you figure out how to use AI to spot the change and adapt automatically? Stack: TypeScript, Node, SvelteKit, Postgres, Playwright, heavy AI-assisted development.

We’re looking for ~3-5 years building scraping or integration systems in production, but if you’re a great engineer who doesn’t tick every box we’d still like to hear from you. UK-based for London, US-based for NYC; we cannot sponsor visas. Two of our three founders are engineers, one in each city, and you’ll work with them directly.

james@infohawk.com

Revieve Oy | Senior Product Engineer | REMOTE [Europe / (GMT+2)] | Contract, full-time |

Revieve (Helsinki, with a US office and a team in Asia) builds AI, AR and computer-vision personalization for beauty brands and retailers: skin analysis, virtual try-on and product recommendations. We work with 120+ brands and retailers in 40+ countries, and our product reaches millions of end users.

We're a small team (30+ people, about a dozen engineers) spread across eight time zones, and we've reorganized around the idea that one builder with the right tools can do what a team used to. This role exists because we believe that.

A typical week: a real customer problem lands in front of you with full context, and you decide what to build. Tuesday you sketch it in an AI design tool and prototype in Claude Code. Wednesday it's on staging and you send the founders a Loom. Thursday it's in production. About 1-2 hours of meetings a week, mostly async. No standups, no sprints, no PM or designer in the loop.

What we're looking for:

- Public proof of building: repos, products or side projects we can click around - AI in production, with an opinion about agents, evals, latency and what fails - Fluency with agentic coding (Claude Code, Codex, MCP, custom harnesses) - Design taste: you can take an idea to a working interface without a designer - Generalist instincts: TypeScript/React up front, comfortable with backend integrations and infra - Clear written thinking: READMEs, PRs, post-mortems

Process: intro call, then a paid build session where we work on a real problem together (that's where the hire decision happens, for both sides), a short presentation to the team, then an offer.

Perks: flexible hours, performance-based option plan, equipment budget, five weeks' vacation, paid parental leave.

Details and apply: https://revieve.factorialhr.com/job_posting/senior-product-e... (please mention HN)

Opaxa | Founding Engineer, Forward Deployed (full-stack) | San Francisco Bay Area preferred, REMOTE (US) considered | Full-time | $175K–$225K + 0.5%–1.5% equity | opaxa.com

Every business with many locations already has systems that record what happened yesterday. None of them tell the manager what to do today. Opaxa does. It reads the systems a business already runs, learns how that operation actually works, and puts the right decision in front of the right manager: how busy tomorrow will be, who to schedule, what to order, which invoice overcharged you. Then it tracks what each decision earned.

Our founder runs a restaurant company with more than 40 locations and over 750 employees. Opaxa was built inside it to solve its own problems, and it runs there every night. We're well funded and now expanding to other multi-location operators: restaurant groups, stadiums and campuses, hotels, retail.

You'd be the second engineer, working with our founding engineer, who owns the architecture, and with the sales and product team. You'd take new features from spec to production, spend real time with the managers who use them, and turn what they tell you into shipped changes within days. As we bring on new clients, you'd lead getting them live. TypeScript/React, Python, Postgres, AWS, and AI tools every day.

This is an early, high-intensity role for someone who wants a lot of ownership and to move fast. US work authorization required. No agencies or contract firms.

To apply, email colton@opaxa.com with the subject "Forward Deployed: your name, your city" and include: your resume or LinkedIn; a link to something you built that real people use, and what you personally did on it; two or three sentences on a time a user's feedback changed what you shipped; and where you're based. We read every email.

Pond AI | Head of Engineering (founding-level) | San Francisco | Onsite | Full-time | https://joinpond.ai

Most non-tech businesses know exactly which workflows they want AI agents to handle, but have no one to build, connect and run them. Pond delivers custom AI agents to these businesses through a network of 7k AI builders, with Pond as the platform and security layer over MCP.

We're backed by Tier-1 VCs and a co-inventor of GPT, and we're looking for a hands-on technical leader to own the platform end to end.

You'd be a great fit if you:

- Build full-stack and ship AI agents in production (TypeScript/Python, LLMs, tool use)

- Have worked on payments, agent coordination/MCP, or platform/marketplace products

- Have early-stage startup experience (founder, founding or early engineer) and like to grind

Email dylan@joinpond.ai with something you've built.

Mattermost | Remote (US and Canada) | FT | Multiple roles

Mattermost (https://mattermost.com) is an open-core collaboration and workflow automation platform for air-gapped, on-prem and private clouds. Our customers are in defense, intelligence, security and critical infrastructure, including the USAF and NASA. Y Combinator led our Series B, their largest open-source investment at the time.

Both openings are full stack on the core platform: Go backend, React/TypeScript frontend, PostgreSQL and Redis. The codebase is public (https://github.com/mattermost/mattermost), so most of what you build is too. We would rather hire people who ship and own complex software end to end than chase an exact stack match, so any systems or backend language and any frontend stack counts. What we look for in both roles: REST and WebSocket APIs with real networking fundamentals (HTTP, connection lifecycle), and relational databases including schema design and query optimization.

We use coding agents daily (Claude Code, Cursor, and others) at every stage of the work: planning, building, reviewing, testing, and shipping. We treat that as core craft rather than a shortcut around the fundamentals. If you have a track record of shipping and owning complex software end-to-end, we want to hear from you.

Senior Full Stack Engineer $142,723 - $172,723 USD Architect and ship full stack features end to end, own the testing strategy for what you ship, and build internal tooling and testing infrastructure that makes the rest of the team faster. You will work without close supervision and hold the security and compliance bar our customers require. Nice to have: distributed systems and high availability architecture, regulated-environment security, open-source contributions, experience on remote-first teams.

Join our team: https://job-boards.greenhouse.io/mattermost/jobs/5379251008

Staff Full Stack Engineer $172,724 - $227,135 USD Set technical direction for the platform rather than for a feature area: architecture and roadmap across the stack, the standards for how the org uses coding agents, and the strategy for internal tooling and testing. You will influence direction across teams, partner with security and compliance on it, and mentor senior engineers. Nice to have: staff, principal or tech lead experience elsewhere, open-source maintainership, FedRAMP or ITAR familiarity, defense or critical infrastructure background.

Join our team: https://job-boards.greenhouse.io/mattermost/jobs/5405811008

Both roles have Canadian postings: https://job-boards.greenhouse.io/mattermost

Location: Dubrovnik, Croatia (CET) Remote: Yes (remote only; EU/UK/US-overlap hours OK) Willing to relocate: yes Technologies: TypeScript, React, Next.js, Node.js/Express, PostgreSQL, Supabase, Prisma, Stripe (billing, webhooks), OAuth/JWT/RBAC, Anthropic/OpenAI APIs, RAG, Tailwind, Jest/Vitest/Cypress, Docker, GitHub Actions Résumé/CV: https://personal-website-tau-sandy.vercel.app GitHub: https://github.com/lazarbukejlovic LinkedIn: https://www.linkedin.com/in/lazar-bukejlovic Email: lazarbukejlovic@icloud.com

Full-stack / product engineer, 4+ years shipping production SaaS end to end. I lead a team of 5–6 engineers for an international client. Built operational dashboards used by ~10k monthly users, fixed duplicate-charge and sync bugs at the source with idempotent webhooks, and ship AI features that people can trust (cited evidence, confidence scores, human review queues). Also 3 years of customer-facing technical support, so I'm comfortable owning a problem from the customer report to the fix. Looking for: Product Engineer, Full-Stack, AI Product Engineer or Technical Support Engineer roles at small teams.