Senior Full Stack Engineer

<p><strong>To be considered for this role, you must be located and have work experience in Germany.</strong></p>
<ul>
<li><strong>Location: Berlin-Mitte, Germany</strong></li>
<li><strong>Work Policy: Hybrid (up to 2 days home office); fully remote negotiable for outstanding candidates</strong></li>
<li><strong>Work Experience: Minimum 6 years of experience</strong></li>
<li><strong>Language Requirement: English C1</strong></li>
<li><strong>Employment Type: Full-time</strong></li>
<li><strong>Technical Skills Required: Full Stack Development, React.JS, TypeScript, CI/CD, Git, React Native</strong></li>
<li><strong>Industry: HealthTech/Mental Health Software</strong></li>
<li><strong>Positions Available: 1</strong></li>
</ul>
<p><strong>Company Mission</strong></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><strong>Core Values</strong></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.<br>
Trust: Trust is their foundation. They work uncompromisingly securely, transparently, and reliably—both with their data and within their team.<br>
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 End-to-End Features: Take complete ownership of features from conception to deployment, making architectural decisions that impact both frontend and backend systems</li>
<li>Real-time Features: Implement WebSocket-based real-time capabilities for seamless user experiences</li>
<li>AI Integration: Work closely with their AI services, integrating cutting-edge models into their product workflows</li>
<li>Make Independent Decisions: They trust you to make technical decisions without constant oversight - from choosing libraries to architecting new features</li>
<li>Rapid Iteration: Ship features quickly while maintaining code quality in a fast-paced AI landscape where capabilities evolve weekly</li>
</ul>
<h2>Requirements</h2>
<ul>
<li>6+ years professional software development experience, ideally with full product-lifecycle ownership</li>
<li>Deep React.js knowledge: component lifecycle &#x26; architecture, Redux/Context/Zustand state-management, hooks (standard &#x26; custom), performance tuning, modern JS, HTML5, CSS3/SASS</li>
<li>Typescript proficiency – writing fully type-safe, maintainable code</li>
<li>Performance-obsessed front-end mindset: lazy loading, code-splitting, caching strategies, general web-app optimisation</li>
<li>Solid grasp of browser APIs (localStorage, sessionStorage, IndexedDB) for offline-first experiences</li>
<li>Electron expertise: main/renderer process architecture, native OS integration, auto-update flows, security best-practices for desktop apps</li>
<li>Version-control mastery with Git: branching strategies, merge-conflict resolution, code-review workflows, CI/CD integration</li>
<li>Strong problem-solving &#x26; debugging skills: use of Chrome DevTools / IDE debuggers, bottleneck analysis, comprehensive automated test suites</li>
<li>Clear communicator &#x26; collaborator: well-structured technical documentation, constructive code-reviews, mentoring, cross-functional teamwork</li>
<li>Autonomous mindset: self-directed, decisive, comfortable with ambiguity, writes clean well-tested code without micromanagement</li>
<li>Adaptable &#x26; AI-ready: experience consuming AI/LLM APIs and designing reliable systems around probabilistic outputs; eagerness to explore emerging modelsReal-time/WebSocket implementation experience for seamless live collaboration features</li>
</ul>
<p>Nice-to-haves</p>
<ul>
<li>React Native &#x26; mobile: native module bridging, platform-specific code, performance tuning, App Store / Google Play releases</li>
<li>Audio domain: speaker diarisation, audio-processing pipelines</li>
<li>Healthcare/mental-health background or GDPR / security-compliance experience</li>
<li>Comfortable with async-first work style &#x26; strong user-empathy for therapists' workflows</li>
</ul>
<p>Why Work WIth Them</p>
<ul>
<li>“Build AI tools that save therapists 80% of their admin time.”</li>
<li>“Own architecture decisions in a high-trust, no-bureaucracy environment.”</li>
<li>“Join a 9-person rocket-ship in Berlin with equity and real impact on mental health.”</li>
<li>“Work with the latest GPT/LLM models and ship features used daily by doctors.”</li>
</ul>
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