- Developed the KOMBau communication platform for Deutsche Bahn to improve efficiency for over 500 railway companies. Technologies: React.js, Next.js, OpenAPI, Docker, Kubernetes, PostgreSQL, Java Spring.- Digitalized the workflow for yacht co-ownership through a React Native app with REST API integration (OpenAPI) and developed an accompanying back-office admin solution using React, NestJS, PostgreSQL, and Docker.- Created a comprehensive digital platform for pandemic response: a mobile React Native app for over 10,000 patients, an Electron desktop app for doctors and test/vaccination centers by using React, and a Next.js web application for appointment management using Node.js, Express.js, and Docker.- Implemented CI/CD pipelines with unit and end-to-end tests, code reviews, and pull requests for all projects.

Various webdesign and development projects, which included the following Tech-Stack: - TypeScript / JavaScript- React.js / React Native- REST API's- PHP / WordPress- Webdesign / Figma / Adobe XD