Projects

Sorted by relevance to the work I do today. Own apps at the end.

Megunto app: course overview and exam question with voice input

Megunto

The mobile version of an existing exam-prep platform for doctors and medical students, with AI-assisted evaluation.

Flutter (Android/iOS/Web)
REST API
Figma

Kiezpass

A marketplace for restaurant and bar deals in Berlin – my own company, sold in 2025.

Flutter (Android/iOS/Web)
Firebase

Twiggli app: full-screen event feed and search with filters for category, date and price

Twiggli

An events and experiences platform whose FlutterFlow app couldn't get through store review.

Flutter (Android/iOS)
FlutterFlow
Firebase

Vattenfall
Deutsche Bahn
Porsche
Swiss Re
Lidl
Bayer 04
Burda Verlag
GU Verlag

Appsfactory – seven years in an agency

Backend, Xamarin and tech lead for Vattenfall, Deutsche Bahn, Porsche, Swiss Re and others.

.NET
Azure
Xamarin
Flutter

Own apps

All Aboard app: trip overview with fellow travellers and expense settlement

All Aboard

A shared workspace for group trips: planning, photos, documents and expense settlement.

Flutter (Android/iOS)
Firebase
OpenAI

Banana List app: onboarding, list overview and shared shopping list

Banana List

A shared checklist app that had to feel faster than anything else on the market.

Flutter (Android/iOS)
Firebase