Jan Elzein
Independent Developer & Community Support at Non-Profit Sector
Frýdek-Místek, Moravia-Silesia, Czechia
Summary
👤
Senior🎓
Top SchoolJan Elzein is a pragmatic C# developer with nine years of professional experience and a deep foundation in both low-level C++/ARM and high-level C#, JS/TS systems. He excels at rescuing and modernizing complex legacy environments—spanning MES, embedded systems, and enterprise integrations—while guiding architecture and hands-on refactors. Comfortable toggling between firmware-level debugging and scalable .NET solution design, he’s delivered manufacturing-grade MES implementations and emergency project recoveries across international teams. Jan pairs technical leadership with a tinkerer’s mindset—he’s invented a lightweight font-compression algorithm and maintains open-source projects while providing pro-bono community IT support. Fluent in English and experienced in cross-border settings, he favors practical, efficient solutions that balance robustness and maintainability.
9 years of coding experience
18 years of employment as a software developer
-, Informatika Bc., -, Informatika Bc. at Univerzita Karlova v Praze-, Informatika, -, Informatika at Faculty of Electrical Engineering, Czech Technical University in PragueSymbian OS Essentials, Symbian OS Essentials at Symbian Ltd., LondonC#, C# at UnicornMatematika - Fyzika, Matematika - Fyzika at Gymnázium Petra Bezruče Frýdek-Místek
English, German, Slovenian, polština
Stackoverflow
2,218reputation
7.9mreached
180answers
11questions
javascript
top-5%
Github Skills (109)
adafruit10
arduino-library10
gfx10
nodejs10
derive10
javascript9
jquery9
plot9
linux9
js9
testing9
reader9
windows9
pdf-generation9
ohlc9
Programming languages (7)
Github contributions (5)
eltomjan/ETEhomeTools
Apr 2017 - Mar 2022
Contributions:39 commits, 151 pushes, 1 branch in 5 years
xsuchy/heissepreise-cz
Dec 2023 - Nov 2024
heissepreise fork for Czech Republic
Contributions:39 reviews, 16 PRs, 29 pushes in 10 months
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