Sébastien Saunier
Ruby On Rails Expert at Refrag
France
Summary
👤
Senior🎓
Top SchoolSébastien Saunier is a Ruby on Rails expert and seasoned software engineer with over 17 years of experience building and shipping web products across Ruby, Python, PHP and C# stacks. As co-founder and long-time CTO of Le Wagon, he helped scale a global coding school to 30k+ alumni across 40 cities and guided the technical transition after a decade at the helm. He now operates as a Fractional CTO and hands-on technical lead, combining strategic product judgment with day-to-day engineering craft. His background spans startup SaaS, analytics, and developer tools—shaped by early engineering roles at Google and experience designing data-driven features with in-house data scientists. Based in France and grounded in École Polytechnique and Télécom Paris training, he’s as comfortable mentoring teams as he is diving into code to unblock delivery. A pragmatic operator who values teaching, he often blends pedagogy with product work to accelerate technical teams.
8 years of coding experience
16 years of employment as a software developer
Master of Science - MS, Computer Science, Master of Science - MS, Computer Science at École PolytechniqueMaster of Science - MS, Computer Programming, Master of Science - MS, Computer Programming at Télécom Paris
Stackoverflow
1,484reputation
92kreached
90answers
0questions
Github Skills (16)
html6
macos-big-sur6
shell6
macos6
javascript6
linux6
php6
apache6
jquery6
textblob4
french4
phonetics4
spanish4
languagetool3
translation2
Programming languages (1)
Github contributions (5)
neoski/minishell
Apr 2018 - Apr 2018
Contributions:20 commits, 19 pushes, 1 branch in 2 days
neoski/youtube-music-player
Apr 2018 - Apr 2018
Contributions:39 commits, 29 pushes, 1 branch in 1 day
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