Johann Muszynski
Software Engineer at Mapbox
Helsinki, Finland
Summary
🤩
Rockstar🎓
Top SchoolJohann Muszynski is a versatile software engineer with over a decade of experience building high-performance mapping, optimization, and 3D visualization systems. Currently at Mapbox, he focuses on map rendering and cross-platform SDK features, having implemented raster-particle layers for both native and JavaScript maps. Previously he led Wolt’s Logistics Optimization team, owning route optimization, travel-time estimation experiments, and an in-house OpenStreetMap refresh pipeline while also authoring the core C++ optimizer. His background includes AR and 3D scene work at Umbra and WebGL point-cloud rendering for academic research, reflecting deep graphics and systems expertise grounded in a Master’s in Theoretical Physics. An active open-source contributor, he fixed cross-platform build issues and added examples to a lightweight node-editor used with Dear ImGui, showing attention to tooling and reproducible demos. Based in Helsinki, he brings a rare blend of algorithmic rigor, practical optimization experience, and production-grade mapping knowledge.
12 years of coding experience
11 years of employment as a software developer
Master’s Degree Theoretical Physics, Master’s Degree Theoretical Physics at University of Helsinki
English, Finnish, French
Github Skills (13)
webgl10
maps10
javascript10
c-language10
shader10
cprogramming-language10
sdl10
3d10
macos8
ui-design7
front-end-development7
uid7
game-development6
Programming languages (9)
Github contributions (5)
Nelarius/imnodes
Sep 2018 - May 2022
A small, dependency-free node editor for dear imgui
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:5 releases, 26 reviews, 413 commits in 3 years 8 months
Contributions summary:Johann's contributions focused on fixing build issues, particularly for the macOS example. They implemented changes to the build scripts (premake5.lua) to correctly include SDL2 and CoreFoundation frameworks. In addition, the user developed and integrated a simple working example to illustrate the capabilities of the node editor.
cppgamedevnode-editorwindowdear-imgui
Nelarius/rayfinder
Oct 2023 - Jul 2024
Contributions:363 pushes, 111 branches, 15 comments in 8 months
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