Valentin Harrang
Développeur Frontend Senior at Linkt
Rouen, Normandy, France
Summary
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Rockstar🎓
Top SchoolValentin Harrang is a Senior Frontend Developer with 9 years’ experience building pixel-perfect, high-performance web applications using React, Next.js, Astro and TypeScript for startups, scale-ups and enterprise clients across fintech, construction, e‑commerce and IoT. He combines a strong product sensibility with deep performance and SEO expertise—evidenced by a Raspberry Pi PWA rewrite that cut load time by 81% and a marketplace that reached #1 on Google. Valentin has led multi-tenant fintech portals with KYC automation, built mission-critical PWAs used by Vinci and Eiffage, and co-founded a sports media reaching 117k followers, showing both technical leadership and growth-minded execution. Comfortable across frontend, backend and DevOps, he moves quickly between prototypes and production, often choosing niche tech (Astro, vanilla JS) to solve hard constraints. Based in Rouen, France, he is available for freelance or permanent roles and thrives on turning complex business requirements into reliable, scalable interfaces.
9 years of coding experience
1 year of employment as a software developer
Analyste Programmeur - Titre enregistré au RNCP niveau III, Analyste Programmeur, Analyste Programmeur - Titre enregistré au RNCP niveau III, Analyste Programmeur at CESI Ecole d'IngénieursDUT Informatique, Informatique, DUT Informatique, Informatique at Le Havre Normandy UniversityBTSA Technico-Commercial, Marketing, BTSA Technico-Commercial, Marketing at Tourville sur Pont-Audemer
French, English, Spanish
Stackoverflow
1,111reputation
139kreached
4answers
55questions
Github Skills (200)
cms10
api-platform10
dashboard10
mapview10
google-maps10
rest-api10
backend10
javascript10
bundle10
stream10
api10
rest10
maps10
scaffold10
admin10
Programming languages (9)
Github contributions (5)
valentin-harrang/my-boilerplate
Dec 2024 - Dec 2024
Contributions:22 pushes, 1 branch in 3 days
ElGecko76/gulp-optimize-assets
Aug 2017 - Aug 2017
Contributions:14 pushes, 1 branch in 1 day
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