I build the data, cloud and AI systems companies actually run on.
Senior IT freelancer in Germany — agentic AI, data, cloud and DevOps engineering for startups, Mittelstand and global corporates.
High-level and hands-on: I design the architecture and I ship the code.
Now
AI Technical Advisor, DialpadBuilding Pilot Shell in the openShipping Bahnsparer for mobile and desktopSelected clients
- Dialpad
- Boehringer Ingelheim
- Porsche
- Hubert Burda Media
- Marc O'Polo
- Climeworks
- OEW Breitband
Things I build myself
Pilot ShellA context and harness engineering system around Claude Code and Codex: persistent knowledge, enforced quality gates and runtime proof, installed with one command. 2k+ GitHub stars.Live productBahnsparerCompares German rail fares, travel time and historical reliability, watches prices for a day or a range, follows the booked trip live and prepares a possible passenger-rights claim. iOS, Android and desktop.Live productDIY-ThermocamAn open-source thermal imaging camera built around the FLIR Lepton sensor. 1.2k stars, 181 forks.Open source