Sebastian Mordziol
Senior Software Developer at Mistralys
Greater Toulon Metropolitan Area France
Summary
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SeniorSebastian Mordziol is a senior software developer with over a decade of experience building user-focused websites and web applications, blending front-end usability with robust back-end PHP development. As owner of Mistralys he has led projects end-to-end—from concept and graphic design to deployment—making him a true all-rounder for small and medium engagements. Since 2021 he contributes his product and tooling expertise to IONOS, rejoining a larger team after many years of independent consulting. His specialties include strategic website deployment, high-end PHP, HTML/CSS, and DHTML/AJAX, with a consistent emphasis on usability. Based in the Greater Toulon area, he pairs practical entrepreneurship with collaborative engineering in international teams. An understated strength is his long-term continuity: maintaining and evolving tooling and sites over many years rather than jumping between short-lived projects.
10 years of coding experience
English, German, French
Github Skills (75)
ckeditor10
svg10
x4foundations10
markdown10
javascript10
keyboard-shortcuts10
keyboard10
mousetrap10
uri10
country-flags10
uri-template10
url-parser10
css10
phpstorm10
preprocessor9
Programming languages (6)
Github contributions (5)
Mistralys/jtokenizer
Mar 2021 - May 2025
Contributions:2 releases, 5 pushes, 1 branch in 4 years 3 months
Mistralys/application-utils
Sep 2019 - Jan 2023
Drop-in static PHP utility classes
Contributions:79 releases, 1 review, 948 commits in 3 years 4 months
phpconversionhelpers-libraryfile-systemutilities-library
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