Jonathan Haßel
Software-Entwickler at dmTECH GmbH
Bonn, North Rhine-Westphalia, Germany
Summary
👤
Senior🎓
Top SchoolJonathan Haßel is a software developer with eight years of experience building web applications, now working as a Fullstack Developer at dmTECH in Bonn. Coding since age 12, he brings a practical polyglot skill set—PHP, JavaScript, Java, Python, C and early work in Swift, Kotlin and C#—grounded in semantic HTML and a strong quality-oriented mindset from graduate studies in practical computer science. His background spans freelance web projects and enterprise IT roles at DHL, giving him both product-focused delivery experience and operational discipline. A Master’s student with top grades, he combines rapid solution-finding with rigorous validation of correctness, making him adept at turning requirements into maintainable implementations. Notably, he moved from solo freelance work into corporate engineering, demonstrating adaptability across team sizes and project scopes.
8 years of coding experience
5 years of employment as a software developer
Master of Science - MS, Praktische Informatik, 1,5, Master of Science - MS, Praktische Informatik, 1,5 at FernUniversität in HagenBachelor of Science - B.Sc., Computer Science, 2,0, Bachelor of Science - B.Sc., Computer Science, 2,0 at University of Bonn
German, English
Stackoverflow
179reputation
43kreached
1answer
0questions
Github Skills (79)
fetch10
bootstrap10
bootstrap-components10
game-theory10
async9
react-components9
javascript9
react-component9
rest9
jts9
qwik9
aurelia9
redux9
react9
typescript9
Programming languages (7)
Github contributions (5)
jotoh98/treasureHunt
Oct 2019 - Apr 2020
Treasure hunt engine for PG Computational Geometry
Contributions:320 commits, 134 PRs, 329 pushes in 5 months
hunttreasure-hunttreasurecomputational-geometrygeometry
jotoh98/jotoh98
Jul 2020 - Sep 2023
Contributions:4 pushes, 1 branch in 3 years 2 months
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.