Hi, I'm Jonas
A Berlin-based freelance mobile developer.
I'm an advocate for user-focussed product design, clean code and deliberate software architectures. Here you can find my CV.
Recent Work
TravelSpend
TravelSpend is a project that I started myself. It's a budget tracker app specifically designed for travelers and it's available on Android and iOS.
Monzo
The Monzo app is a completely new approach on managing your finance. It updates your balance instantly, gives intelligent notifications, and is easy to use. I had the pleasure of building the first version of the Monzo Android app.
BBC Player
At Ostmodern I helped building the BBC Player video streaming app. It lets users watch tv shows or download episodes on smartphones and tablets.
Composed
Composed was a streaming service for classical music by Universal. As the only Android developer in a small product team I've been responsible for implementing new features as well as maintaining and improving the existing codebase.
Compass Navigation
This app is one of my personal projects. It is a simple compass navigation app for Android Wear smart watches. It provides beeline navigation for cyclists or pedestrians.
Wunder
Being part of the Wunder engineering team I developed the initial version of the Wunder ride sharing app. In terms of functionality the app was quite similar to the Uber app.