Sebastian Loncar
Senior Software Entwickler In at SpaceTrek: The New Empire
Hamburg, Germany
Summary
👤
Senior🎓
Top SchoolSebastian Loncar is a senior software developer based in Hamburg with 12 years of hands-on experience building and shipping systems as a founder, freelancer, and in-house engineer. He currently works at Creatica GmbH while continuing to take on side or freelance projects only, reflecting a clear preference against full-time offers. As founder/CEO of multiple ventures including SpaceTrek and Tamani, he combines product-minded entrepreneurship with deep technical execution. His open-source contributions to the well-known OpenTK project show low-level C# expertise in graphics and windowing, including geometry and context-refactor work that suggests strong systems and API design skills. He also developed embedded control software for the Pewatronic GM40 chess computer, highlighting experience across desktop, embedded, and game/graphics domains. Pragmatic, versatile and self-directed, he brings entrepreneurial grit and a track record of delivering robust, cross-domain software.
12 years of coding experience
17 years of employment as a software developer
Computer Science, Computer Science at Berufskolleg Bocholt
Stackoverflow
849reputation
43kreached
21answers
4questions
Github Skills (19)
geometry10
context-api10
windowing10
vector-math10
game-development10
csharp10
opengl10
game-engine9
graphics2d9
graphic9
image-library9
graphics-3d9
math-library9
netcore6
macos6
Programming languages (13)
Github contributions (5)
opentk/opentk
Apr 2020 - Oct 2021
The Open Toolkit library is a fast, low-level C# wrapper for OpenGL, OpenAL & OpenCL. It also includes windowing, mouse, keyboard and joystick input and a robust and fast math library, giving you everything you need to write your own renderer or game engine. OpenTK can be used standalone or inside a GUI on Windows, Linux, Mac.
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:23 commits, 3 PRs, 29 comments in 1 year 6 months
Contributions summary:Sebastian contributed to the OpenTK library by adding functionality and making various code adjustments. They added support for different OpenGL profiles and implemented new vector types like PositiveInfinity and NegativeInfinity for vectors. Additionally, the user made a series of changes to the geometry structures such as Box2, Box2d, Box2i, Box3, Box3d, and Box3i, restructuring and updating the code. The user also refactored the windowing code related to context creation and initialization.
everythingkeyboard-mousespir-vsfmlc-sharp
AximoGames/AxMarbles
Feb 2020 - Jul 2020
Contributions:146 pushes, 5 branches in 4 months
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