Full Stack Engineer

<ul> <li>Location: Berlin, Germany (Hybrid)</li> <li>Work Policy: : Hybrid; fully remote possible for exceptional candidates</li> <li>Work Experience: +5 years experience</li> <li>Language Requirement: English B2</li> <li>Employment Type: Full-time</li> <li>Technical Skills Required: Full Stack Development, TypeScript, React Native, LLMs, API design, Electron</li> <li>Industry: HealthTech/Software-as-a-Service (SaaS)</li> <li>Positions Available: 1</li> </ul> <p>Company Mission</p> <p>They relieve psychotherapists of administrative burdens through intelligent AI assistance, giving them more time for what matters most: working with patients and providing high-quality therapy.</p> <p>Core Values</p> <p>Empathy: They develop for people who help others. That's why they listen and build solutions that make everyday practice noticeably easier instead of complicating it.</p> <p>Trust: Trust is their foundation. They work uncompromisingly securely, transparently, and reliably—both with their data and within their team.</p> <p>Quality: They deliver professional precision instead of gimmicks. Their AI has to stand up to everyday therapeutic use, which is why they focus on technical excellence with real added value.</p> <h2>Tasks</h2> <ul> <li>Own features end to end, by yourself – from the problem through architecture, implementation, release and the fixes that follow, frontend, backend and everything in between; nobody hands you a finished spec and nobody finishes your work for you</li> <li>Make the technical decisions, from choosing a library to architecting a new feature, and defend the decision when it is questioned</li> <li>Integrate AI into the product, working with our AI services to build dependable systems around probabilistic output</li> <li>Build real-time features with WebSocket-based live capabilities where latency is visible to the user</li> <li>Ship on desktop and mobile, working on our Electron app (main and renderer architecture, native OS integration, auto-update, offline-first behaviour) and React Native app</li> <li>Iterate fast with continuous deployment and short cycles, ensuring design controls and traceable test evidence on the surfaces that fall under EU MDR</li> <li>Take initiative creating tickets and implementing them end-to-end</li> </ul> <h2>Requirements</h2> <ul> <li>Genuinely full-stack. Strong React and TypeScript on the front end, and real backend work behind it: API design, data modelling, relational databases, async and background processing. You have built and operated both halves of a feature, not consumed an API someone else wrote</li> <li>You have shipped software that real users depend on, and you supported it afterwards. You know what breaks in production and why</li> <li>Debugging strength across the whole stack. When something is wrong you find it rather than guess at it</li> <li>Real autonomy. You identify what needs doing, decide, and ship. No standup is what keeps you moving</li> <li>Empathy for the people who use what you build. Our users are therapists under time pressure, and you are curious enough about their work to build something they actually love</li> <li>Clear written English and comfort working async</li> <li>React, TypeScript, API design</li> <li>Data modelling</li> <li>Relational databases</li> <li>Async processing</li> <li>Debugging</li> <li>LLM application engineering: evaluation, prompt pipelines, agent tooling, latency and cost optimisation</li> <li>Electron or another desktop platform, including distribution, code signing and auto-update</li> <li>React Native, and experience publishing to the App Store and Play Store</li> <li>Audio processing, transcription or other real-time media</li> <li>Healthcare, GDPR-heavy or other regulated environments</li> <li>German. Our users, their documents and our support conversations are in German</li> <li>Excellence and Drive are required. But typically > 5 years</li> <li>Strong autonomy, very ambitious and driven, curious about the domain</li> </ul> <h2>Benefits</h2> <ul> <li>High degree of creative freedom: End-to-end responsibility for features and architectural decisions in direct collaboration with the CTO and founders.</li> <li>Broad technical scope ranging from React/TypeScript to Electron &#x26; React Native to LLM integration with real-time WebSocket functionality.</li> <li>Practical AI engineering tasks in production systems rather than demo projects, including cost and latency optimization in compliance with the EU MDR.</li> <li>Tangible social impact: The software frees up hours each week for therapists, thereby improving psychotherapeutic care.</li> <li>A dynamic, fast-growing scale-up that is already the market leader in the DACH region and is pursuing ambitious product roadmaps.</li> <li>An attractive package including a copetitive salary, a substantial equity stake, 28 days of vacation, and a flexible hybrid or remote work setup in Berlin-Mitte.</li> </ul> <p>Why Work WIth Them</p> <ul> <li>Own entire features in a bootstrapped, market-leading HealthTech scale-up—no layers, direct CTO access.</li> <li>Ship real AI solutions that save therapists hours weekly—your code impacts mental-health care immediately.</li> <li>Competitive salary plus meaningful equity; high autonomy to choose tools &#x26; architecture.</li> <li>Hybrid Berlin or remote for exceptional engineers; flexible hours &#x26; latest equipment.</li> </ul> <p>Find <a href="https://www.arbeitnow.com">Jobs in Germany</a> on Arbeitnow</a>