Léon Gersen
Chief Technology Officer at Visymo Universal Search Group
Goor, Overijssel, Netherlands
Summary
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Rockstar🎓
Top SchoolLéon Gersen is a Strategic R&D Solution Architect with 14 years of experience building web and embedded systems from the Netherlands, currently shaping research-driven product solutions at Visymo. He progressed through roles from Senior PHP Developer to Lead Developer and now strategic architect, blending hands-on implementation with leadership in R&D. Léon’s background in embedded systems engineering and a master’s in ICT in Business gives him a rare cross-disciplinary perspective that connects low-level device constraints to scalable web architectures. He contributes to front-end open-source work—improving accessibility and maintainability in projects like the lightweight noUiSlider—demonstrating attention to performance and component design. Based in Goor, he favors pragmatic, maintainable solutions that bridge UX, performance and business goals.
14 years of coding experience
13 years of employment as a software developer
Master's degree ICT in Business, Master's degree ICT in Business at Leiden UniversityBachelor of Applied Science - BASc Embedded Systems Engineering, Bachelor of Applied Science - BASc Embedded Systems Engineering at HAN University of Applied Sciences
Stackoverflow
4,868reputation
709kreached
107answers
36questions
javascript
top-5%
html
top-5%
jquery
top-5%
Github Skills (14)
css10
javascript10
ui-components10
jquery9
front-end-development9
html9
datepicker6
responsive-design6
php6
web-standards6
uislider6
phpstorm6
symfony6
nouislider6
Programming languages (8)
Github contributions (5)
leongersen/noUiSlider
Nov 2011 - Aug 2022
noUiSlider is a lightweight, ARIA-accessible JavaScript range slider with multi-touch and keyboard support. It is fully GPU animated: no reflows, so it is fast; even on older devices. It also fits wonderfully in responsive designs and has no dependencies.
Role in this project:
Front-end Developer
Front-end DeveloperContributions:58 releases, 875 commits, 131 PRs in 10 years 10 months
Contributions summary:Léon primarily contributed to the implementation and enhancement of the UI components using JavaScript. They were involved in making the codebase more maintainable by fixing jslint errors and adding behavior options to existing features. Moreover, the user demonstrated their understanding of component-based design, by adding CSS classes for the styling.
gpujavascriptmulti-touchnouisliderrange-slider
leongersen/leongersen.github.io
Apr 2019 - Jun 2024
Contributions:1 PR, 73 pushes, 1 branch in 5 years 3 months
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