Summary
Alexandre Ronsaut is a Senior Web Engineer based in France with over a decade of hands-on experience building and scaling web products across startups, marketplaces and agencies. He founded and ran a successful web agency for ten years, launching 50+ digital products and optimizing sites to top-tier performance, SEO and accessibility. As a lead front-end engineer he has driven design systems, coaching and guilds that improved delivery speed by 300%, reduced bugs through stronger CI and lifted Core Web Vitals and SEO metrics. He combines full-stack fluency (JS/TS, Vue, PHP/Symfony, Node) with product leadership—translating strategy into MVPs, roadmaps and developer enablement. Currently mentoring product engineering and contributing to Back Market’s web platform, he pairs pragmatic engineering with a deep commitment to web quality and user-centered design. An early career in archives and film-making hints at his long-standing interest in storytelling, documentation and multidisciplinary collaboration.
12 years of coding experience
3 years of employment as a software developer
National Conservatory of Arts and Crafts
Product Management, Product Management at Noé
Baccalauréat Scientifique, option Mathématiques, Baccalauréat Scientifique, option Mathématiques at Lycée Pierre Corneille - Rouen
Bachelor's degree, Sound engineer, Bachelor's degree, Sound engineer at ESRA
Advanced Node.js, Advanced Node.js at DTC Innovation
English, Japanese, French