Senior freelance software engineer

1/2024 – 3/2026

- Maintained and refactored a mature macOS desktop application implemented in Objective-C with its business logic in cross-platform C++, as part in the international macOS team.
- Maintained Jenkins and Xcode build infrastructure supporting the application.

C++, Jenkins, Objective-C, Softwareentwicklung (allg.), Swift (Programmiersprache)

1/2021 – 4/2022

Independently researched, prototyped and delivered firmware for an embedded temperature controller based on a touchscreen and Raspberry Pi, implementation in C/C++ with Raylib for the GUI and shell scripting.

Embedded Entwicklung / hardwarenahe Entwicklung, Embedded Linux, Programmierer C, C++

3/2014 – 11/2024

- Programmer in the macOS team, working on the development of the desktop application in Objective-C, later porting it to Swift and SwiftUI.
- independently researched and implemented a shared cross-platform core in C# with Mono and later .NET in close coordination with the Windows team, which is important functionality of the application.
- Implemented document import, export and processing with Aspose in C#, and Natural Language Processing work in Python.
- maintenance of the Objective-C iOS client.

C#, Objective-C, Programmierer C, C++, Python, Python-Programmierer