Hello, I'm Guillaume.

Senior Frontend Engineer with 8 years of experience building production React, Next.js, and TypeScript applications. I've led frontend teams, shipped products used daily by thousands of users, and migrated legacy stacks toward modern architectures (App Router, Server Components). I care about code quality, accessibility (W3C certified), and the kind of small UX details that make a product feel right. Lately I've been exploring TanStack Start, Astro, and Svelte to stay close to where the ecosystem is heading.