Sébastien Crepin
Freelance Software Engineer at Emma Legal
Mont-Saint-Guibert, Walloon Brabant, Belgium
Summary
👤
Senior🎓
Top SchoolSébastien Crepin is a freelance software engineer based in Mont-Saint-Guibert, Belgium, with around eight years of hands-on experience building performant, well-organized web applications and polished user interfaces. He combines a background in accounting with formal web development training, which informs a pragmatic, detail-oriented approach to engineering and product thinking. Over the past decade he has delivered across startups, banks, and health tech—shifting between client engagements and running his own ventures, including a stint as CEO of a health startup. Known for a taste for beautiful interfaces and performance-minded code, he often bridges technical implementation with business needs. Fluent in the freelancer mindset, he’s equally comfortable shipping features for regulated environments and prototyping entrepreneurial ideas.
8 years of coding experience
7 years of employment as a software developer
Comptabilité, Comptabilité at Chambre Belge des Comptables, Experts-Comptables et Conseils FiscauxWeb Developper, Développeur Web, Web Developper, Développeur Web at Ifosup Wavre
English, French
Github Skills (93)
ui-components10
css-in-js10
microfrontend10
cart10
rest-api10
hubspot10
uikit10
haskell10
framework710
javascript10
mbaas10
graphql-api10
react-native-web10
validation10
chakra10
Programming languages (4)
Github contributions (5)
flaves/compta-plan
Mar 2023 - Mar 2025
Compta Plan website
Contributions:2 releases, 12 PRs, 24 pushes in 2 years
opeah/peintagone
Jan 2019 - Sep 2019
Code for peintagone website
Contributions:4 releases, 144 PRs, 247 pushes in 7 months
reacttypescript
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