Client Work
A selection of projects I've worked on as a freelance developer. Each project showcases my expertise in building high-quality mobile and web applications.
Porsche Digital
Fullstack development for a consumer-facing mobile app with real-time video streaming, in-app subscriptions, and serverless AWS backend. 850+ commits across mobile, web, and infrastructure.
SAP / KulturPass DE
Contributed to the KulturPass mobile app, a German government initiative providing 18-year-olds with cultural budget. Implemented favorites, form validation, secure storage, and Redux architecture.
Stroeer / t-online
Built the t-online news mobile app from the ground up using React Native and Expo. Implemented core features including configurable navigation, search, push notifications, and ad monetization.
ABL
Built and maintained the ABL Configuration App for EV wallbox setup and management. 1,300+ commits over multiple years, including device communication via WiFi/Bluetooth, firmware updates, and multi-language support.
IBM iX / Barmer
Frontend development for Barmer, one of Germany's largest health insurers. Contributed to the Bonus module in the Barmer App and the Puls cross-platform design system.
Olympia Verlag (Kicker)
Lead fullstack development for FWMFL, a podcast and audiobook streaming platform for football fans. 1,600+ commits across mobile app, backend services (Go/Rust), website, and Kubernetes infrastructure.
Freelance Developer
I help companies build high-quality software - primarily mobile and web applications, but also backend systems and DevOps infrastructure. From startups to enterprises, I bring ideas to life with clean code and modern technologies.
