Yohan Spychala
Staff Frontend Engineer at leboncoin
Paris, Ile-de-France
Summary
👤
Senior🎓
Top SchoolYohan Spychala is a Staff Frontend Engineer based in Paris with 10 years of experience building and scaling web applications, specializing in React, TypeScript, monorepos and frontend performance. He focuses on developer experience and platform architecture, guiding teams through large-scale migrations, framework upgrades and CI/DevX improvements at leboncoin. Comfortable both shipping product features and shaping developer workflows, he enforces strong typechecking, linting and observable practices to improve quality and speed of delivery. His background includes mobile React Native work, GraphQL integration and early-career HTML5/CSS3 R&D for major e‑commerce clients, giving him a broad practical view from pixel-level integration to platform design. Notably, he blends hands-on coding with mentorship and technical decision-making, often anticipating migration challenges before they impact teams.
10 years of coding experience
13 years of employment as a software developer
DUT Service et Réseaux de Communication, DUT Service et Réseaux de Communication at IUT Michel de Montaigne
English
Github Skills (34)
ios10
react-native10
cross-platform10
android10
react10
webpack9
mobile9
react-navigation9
orientation8
i18n-js8
orientation-changes8
device-orientation8
nextjs8
typescript8
app-framework8
Programming languages (5)
Github contributions (5)
SensCritique/V4.front
Oct 2015 - Nov 2015
Contributions:13 pushes in 14 days
react-hot-loaderreactboilerplateexpressreact-redux
yspychala/dotfiles
Apr 2020 - Apr 2020
Contributions:2 commits, 9 pushes, 1 branch in 1 day
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