Selected work
Projects
Sixteen years of apps other people depend on daily — healthcare, rail, mobility, logistics — built as a developer, team lead and head of development, and today as this workshop.
Electronic patient recordIBM · DevHive · 2024–today
Base libraries and the white-label ePA app that most German statutory health insurers ship to their members, plus a Kotlin Multiplatform login and registration SDK used by insurers such as AOK and Barmer — Android, iOS and desktop from one codebase; every insurer publishes it under its own name.
HabblEIKONA · logistics
A Kotlin Multiplatform app for logistics companies including IDS, Rewe and Edeka — dispatch, scanning and proof of delivery on the driver’s device.
Rail & public transitDeutsche Bahn · moovel · mobimeo · Mobility Inside
DB Streckenagent, the second-largest app of Deutsche Bahn, and the white-label platform behind it: the apps of Karlsruhe (KVV), Rhine-Main (RMV) and Dresden (DVB) run on it, as does Mobility Stuttgart — ticketing, routing and accounts shared across a dozen transit associations, each shipping under its own name.
FreeNowIntelligent Apps · formerly mytaxi · rider and driver apps
One of Europe’s largest ride-hailing apps and its driver counterpart — as developer, then Android team lead, with releases in Germany, Japan and the United States. Launched as mytaxi, today FreeNow.
Rider app
Driver app
car2go · ShareNow · ReachNowDaimler Mobility · moovel
Free-floating car sharing on Android, including the intercity variant car2go black: finding, reserving and unlocking a car in a few seconds, in dozens of cities and two markets. The service has since been folded into FreeNow.
XINGXING AG · Hamburg
The Android app of the German-speaking business network — profiles, contacts and job search for millions of members.
meetya · iDatesAppanatics · Hamburg
Two consumer apps for a young Hamburg studio: meetya found events and activities nearby, iDates was a dating app with free chat. Both have since left the stores.
MAGIXDresden · Camera MX · Music Maker JAM · Video Edit Touch
Camera MX, one of the first serious alternative camera apps for Android with more than 20 million installs; Music Maker JAM for making music on the phone; Video Edit Touch, editing video locally on the device; and DDTram for Dresden’s public transport.
Our own appsCard games — Knack released, Mau-Mau and Skat planned
What the lab builds for itself: classics rebuilt properly for the phone, starting with Knack.
Coming soon
- Built a white-label platform that a dozen transit associations ship their apps on.
- Releases in Germany, Japan and the United States; award for mobility innovation, 2016.
- Head of development and team lead: technical direction plus responsibility for people.
- Android since 2010, Kotlin since 2016 — an early adopter, still on it every day.