Senior Full Stack Engineer

To be considered for this role, you must be located and have work experience in Germany.

• Location: Berlin-Mitte, Germany
• Work Policy: Hybrid (up to 2 days home office); fully remote negotiable for outstanding candidates
• Work Experience: Minimum 6 years of experience
• Language Requirement: English C1
• Employment Type: Full-time
• Technical Skills Required: Full Stack Development, React.JS, TypeScript, CI/CD, Git, React Native
• Industry: HealthTech/Mental Health Software
• Positions Available: 1

Company Mission

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.

Core Values

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. Trust: Trust is their foundation. They work uncompromisingly securely, transparently, and reliably—both with their data and within their team. 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.

Tasks

• Own End-to-End Features: Take complete ownership of features from conception to deployment, making architectural decisions that impact both frontend and backend systems

• Real-time Features: Implement WebSocket-based real-time capabilities for seamless user experiences

• AI Integration: Work closely with their AI services, integrating cutting-edge models into their product workflows

• Make Independent Decisions: They trust you to make technical decisions without constant oversight - from choosing libraries to architecting new features

• Rapid Iteration: Ship features quickly while maintaining code quality in a fast-paced AI landscape where capabilities evolve weekly

Requirements

• 6+ years professional software development experience, ideally with full product-lifecycle ownership

• Deep React.js knowledge: component lifecycle & architecture, Redux/Context/Zustand state-management, hooks (standard & custom), performance tuning, modern JS, HTML5, CSS3/SASS

• Typescript proficiency – writing fully type-safe, maintainable code

• Performance-obsessed front-end mindset: lazy loading, code-splitting, caching strategies, general web-app optimisation

• Solid grasp of browser APIs (localStorage, sessionStorage, IndexedDB) for offline-first experiences

• Electron expertise: main/renderer process architecture, native OS integration, auto-update flows, security best-practices for desktop apps

• Version-control mastery with Git: branching strategies, merge-conflict resolution, code-review workflows, CI/CD integration

• Strong problem-solving & debugging skills: use of Chrome DevTools / IDE debuggers, bottleneck analysis, comprehensive automated test suites

• Clear communicator & collaborator: well-structured technical documentation, constructive code-reviews, mentoring, cross-functional teamwork

• Autonomous mindset: self-directed, decisive, comfortable with ambiguity, writes clean well-tested code without micromanagement

• Adaptable & 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

Nice-to-haves

• React Native & mobile: native module bridging, platform-specific code, performance tuning, App Store / Google Play releases

• Audio domain: speaker diarisation, audio-processing pipelines

• Healthcare/mental-health background or GDPR / security-compliance experience

• Comfortable with async-first work style & strong user-empathy for therapists' workflows

Why Work WIth Them

• “Build AI tools that save therapists 80% of their admin time.”

• “Own architecture decisions in a high-trust, no-bureaucracy environment.”

• “Join a 9-person rocket-ship in Berlin with equity and real impact on mental health.”

• “Work with the latest GPT/LLM models and ship features used daily by doctors.”