Product Engineer

ABOUT THE ROLE A fast-moving, pre-seed healthtech startup building a modern preventive health platform is looking for a highly autonomous Product Engineer to join their small team in Berlin. The platform combines advanced biomarker diagnostics, clinician-reviewed health plans, AI-powered concierge experiences, and interactive customer dashboards into a single seamless product. This is a founder-mode role — no PMs, no hand-offs, no tickets handed to you. You'll work directly with the founders, own features end-to-end, and ship real product from day one. WHAT YOU'LL DO - Ship product end-to-end across the web app, backend, and third-party integrations (lab partners, supplement manufacturers) - Build and iterate on customer-facing experiences: biomarker dashboards, personalised action plans, and subscription flows - Own and improve engineering infrastructure and AI development tooling as the product scales - Work directly with the founding team to translate product vision into working software — fast WHAT WE'RE LOOKING FOR Required - Up to 1 year of software development experience, with shipped, real-world software — startup, founder, or indie hacker contexts are a strong signal - Hands-on experience with modern AI development workflows and tooling (e.g. Cursor, Claude Code, evals, agentic pipelines) - Experience designing and implementing customer-facing dashboards and subscription flows for web applications - Experience building API integrations with external partners (e.g. lab or manufacturing providers) - Genuine full-stack capability: comfortable owning frontend, backend, and integrations without relying on specialists - Professional working proficiency in English - Ability to operate autonomously in a high-trust, low-process environment Nice to Have - Proficiency in TypeScript and Next.js (or equivalent); experience with React, PostgreSQL, Supabase, and Vercel - Genuine interest in or background relating to preventive health, longevity, or biomarker science COMPENSATION & BENEFITS - Salary: €36,000 – €48,000 per year - Early-stage equity opportunity (details discussed during interview process) - Direct collaboration with founders and meaningful ownership over product direction LOCATION - Berlin, Germany — on-site, five days per week. This is a firm requirement. - Candidates must be eligible to work in Germany without employer visa sponsorship. Visa sponsorship is not available.