Symfony replatforming
Migrate Silex or legacy PHP apps to Symfony 6/8.4 with domain-driven architecture, automated tests, and staged rollouts.
Lead full-stack engineer
Ready to lead your next critical rebuild
I modernize Symfony and React stacks, coach teams, and keep delivery moving. This site complements my LinkedIn profile with case studies and technical writing.
Rebuilds delivered
Silex→Symfony 6 migration, PHP 8.4 upgrade, domain-driven components.
Modern front-end craft
React, Next.js, TypeScript, design systems, Storybook, and performance budgets.
Knowledge transfer
Mentoring, documentation, Symfony bundles, and TypeScript libraries to keep teams autonomous.
Core skills
Detailed skills
React & TypeScript front-ends
Convert Twig/JS stacks to React, ship reusable design systems, and safeguard accessibility and performance.
Tooling & knowledge sharing
Deliver Symfony bundles, TypeScript libraries, documentation, and mentoring so teams stay autonomous.
Case studies
Three engagements from my CV that illustrate my rebuild work.
Rebuilding the #1 software for independent real-estate agencies
Coordinated 10 developers, 2 designers, and 1 product owner
Led a 2-year React/TypeScript and PHP/MySQL rebuild for France's leading vendor serving independent real-estate agencies.
Migrating a cyber risk platform from Silex to Symfony 5
Modernised PDF/DOCX reporting and EBIOS RM 2018 modules
Moved a Silex monolith to Symfony 5 and API Platform while rewriting the ReactJS interfaces and hardening Docker and Elasticsearch.
Industrialising OffroadLabs internal products
Shipped blacklimpkin.com, the PDF service, and Bun-based scrapers
Continuously build blacklimpkin.com (React/TypeScript, Symfony 6, AI Chrome extension), an open-source PDF service, and Bun/TypeScript microservices with Redis, MongoDB, and Next.js 15.
Recent articles
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Want to dig deeper?
My blog complements my LinkedIn profile with technical deep-dives and rebuild journals.
Sébastien TIMONER
Lead full-stack engineer (React & Symfony)
React & Symfony rebuild specialist
Aix-en-Provence, France
After ten years running OffroadLabs, I now focus on high-impact Symfony, React, and TypeScript modernizations while keeping delivery predictable and mentoring developers.