Senior full-stack engineer — Freelance — Founder of Mathieu42 👋
Passionate software engineer with 10+ years of experience building modern, robust and scalable web applications for startups, SMEs and large enterprises. I combine technical excellence with a deep understanding of user experience to turn your ideas into high-performing digital solutions — from architecture to production deployment, with a focus on UX and business objectives.
Expert in Next.js and Laravel, I cover the full stack: frontend, backend, databases, REST APIs, server optimization and SEO. From design to deployment, I work autonomously and rigorously, with a results-oriented approach.
🛠️ Technical stack: Next.js, React, TypeScript, Node.js, Laravel, PHP, JavaScript · Supabase, PostgreSQL, MySQL · Payload CMS, WordPress · Stripe, Vercel, Sentry · Vitest, shadcn/ui, Tailwind · REST API, AI integration
✨ What I bring to your projects:
• Autonomy from day one — quick onboarding thanks to my seniority, effective technical resolution, on-time delivery. Your investment translates into time and cost savings.
• Robust and maintainable code — guaranteed quality to reduce technical debt and long-term maintenance costs. Reliable and scalable applications.
• Product vision — proactive input on architecture, UX and business objectives, beyond pure development. I anticipate challenges to deliver proven solutions.
• Flexibility — ad-hoc support, strategic reinforcement or long-term partnership, depending on your needs. Flexibility that traditional hiring doesn't always offer.
🚀 I typically work on:
• Starting a project from scratch (MVP, SaaS, platform)
• Migrating or modernizing an existing application
• Joining a team as reinforcement (React, Next.js, Laravel)
• Technical audit, performance optimization or AI integration
Choosing a senior full-stack developer means investing in performance and peace of mind.
📋 How I work:
• Weekly video call check-ins for transparency and alignment
• Clear communication (FR/EN)
• Commitment to deadlines and regular reporting
• Up-to-date technical documentation
✅ Guarantees:
• Transparent communication, clear contracts
• Professional liability insurance
• Available for short or long-term assignments
📞 www.mathieu42.com — Feel free to reach out to discuss your needs.
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