Senior Developer React / React Native / Fullstack / Python / Node

Senior Frontend and Mobile Developer with more than 14 years of experience in designing, building, and improving user-facing applications for both web and mobile. Strong background in React, React Native, TypeScript, JavaScript, and modern frontend development practices. Experienced in developing stable, maintainable applications and ensuring high code quality through testing, documentation, and clear architecture.

Comfortable taking ownership of complex projects, improving existing codebases, and guiding teams through refactoring or onboarding processes. Skilled in working closely with designers, product managers, and backend teams to deliver features that are both user-friendly and technically reliable. Passionate about creating intuitive user experiences and helping teams work more efficiently.

React, React Native (Expo and bare), JavaScript/TypeScript, State Management (Zustand, Redux RTK, TanStack Query, etc.), Node.js, API integration, PostgreSQL, testing (unit & E2E), Git/GitHub, agile collaboration.

Cross-functional teamwork, mentoring and onboarding, problem-solving, clear communication, code reviews, ownership of outcomes, improving team workflows.

German (native), English (fluent), French (basic), Japanese (basic)