Jelle Hermsen
Freelance Programmer at jelle.xyz
Greater Enschede Area Netherlands
Summary
👤
Senior🎓
Top SchoolJelle Hermsen is a freelance programmer with 13+ years building mobile apps, web applications and webshops, with deep expertise in medical software and real-time 3D experiences. He combines low-level skills in C/C++, OpenGL and Ada with modern stacks like Django, Flutter and JavaScript, enabling end-to-end delivery from embedded algorithms to polished UIs. As co-founder of Plump Devs and several small startups, he blends product-minded game and app development with practical freelance delivery. Based in the Greater Enschede Area, he favors careful, empathetic design—evident in games aimed at inclusive audiences—and has recently migrated his open-source work to SourceHut. His background in technical informatica and early web development gives him a rare mix of legacy systems comfort and contemporary mobile/3D fluency.
13 years of coding experience
19 years of employment as a software developer
Technische Informatica, Technische Informatica at University of TwenteLerarenopleiding Wiskunde, Lerarenopleiding Wiskunde at WindesheimGymnnasium, Gymnnasium at Geert Groote College
Github Skills (55)
game-engine10
open-source10
game-development10
godot9
zip9
django8
leaderboard8
gdscript8
file-browser8
browser7
user-experience7
python7
cordova-ios-plugin6
flexibility6
wagtail6
Programming languages (8)
Github contributions (5)
jellehermsen/blog
Jul 2015 - Jul 2022
Contributions:36 pushes, 1 branch in 7 years 1 month
jellehermsen/gdunzip
Dec 2018 - Feb 2022
A zip file browser/decompressor written entirely in GDScript, for usage in the Godot game engine.
Contributions:3 releases, 14 commits, 3 PRs in 3 years 2 months
file-browsergdscriptbrowsergodotdecompressor
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