Valentin Colmant
Expert Software Engineer at Peaksys
Bordeaux, Nouvelle-Aquitaine, France
Summary
👤
Senior🎓
Top SchoolValentin Colmant is an Expert Software Engineer based in Bordeaux with 12 years of experience building high-performance web and mobile applications. At Peaksys/Cdiscount he led web performance efforts for mobile frontends, driving a >60% improvement in Core Web Vitals and helping the site exceed its "fast" target. He developed and open-sourced a progressive hydration library for React that speeds up rendering on more than 20 high-traffic sites, and acts as a React technical reviewer across teams. His background includes leading the PWA for Cdiscount that achieved higher initial conversion than the native app and a 30% faster typical user journey after navigation redesign. Constantly exploring the latest JavaScript and web-performance techniques, he combines hands-on implementation with measurable business impact. He holds a Master in Software Engineering from Université de Bordeaux and a pragmatic focus on instrumented performance improvements that scale in production.
12 years of coding experience
6 years of employment as a software developer
Licence, Informatique, Mention Bien, Licence, Informatique, Mention Bien at Université François Rabelais de ToursMaster en informatique, Génie logiciel, Mention Bien, Master en informatique, Génie logiciel, Mention Bien at Université de Bordeaux
English, French
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (10)
preload10
render10
prefetch10
react7
fiber7
code-splitting6
hydration6
server-side6
skip6
react-components5
Programming languages (1)
Github contributions (5)
valcol/react-hydration-on-demand
Dec 2019 - Jan 2023
Contributions:4 releases, 34 commits, 20 PRs in 3 years 1 month
renderprefetchreactprogressive-hydrationtti
valcol/react-without-hydration
Oct 2019 - Jan 2023
Skip the hydration step on the client for a component rendered server side.
Contributions:1 release, 15 commits, 5 pushes in 3 years 2 months
renderprefetchreactskiphydration
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