I build and maintain iOS apps. Get in touch if you want to work with an experienced iOS developer who focuses on user experience and maintainable code.
I do iPhone/iPad/Apple Watch development in Swift. I like learning new skills, working on existing ones, and solving interesting problems. Bonus points if those problems have anything to do with personal finance, cycling, public transportation, or maps.
In the past, I founded a now defunct company – Kullo GmbH – and built a product from idea to running on five different platforms across desktop and mobile devices. I hold an M.Sc. in Computer Science from TU Darmstadt, with a focus on computer networks and IT security. During my graduate studies, I worked on wireless mesh network security.
Besides Swift, I sometimes do work in Objective-C, Kotlin, TypeScript, Ruby, and Bash scripting. I have experience with PostgreSQL and SQLite databases, and setting up and managing Linux servers. In the past, I have also worked with C++, Go, Java, Python/Django, PHP, and MySQL, but those are not in my focus anymore.