Freelancer profile translated to English.
Back to original languageAbout Gaëtan
**Freelance Full-Stack Developer, expert in TypeScript, Next.js, and Supabase**, I help startups and product creators develop modern, performant, and maintainable web applications.
🧠 What I bring to you:
- Complete mastery of the modern JS stack: Next.js, Prisma, Zustand, Redis, Tailwind
- Seamless integration of complex components: authentication, AI, analytics, payments (Stripe)
- Product-oriented logic, focused on performance, user experience, and scalability
🏆 Two-time winner of Supabase Hackathons, I design concrete, often open-source, solutions with high technical standards.
🚀 Available for remote work on your SaaS projects, MVPs, or custom tools.
🔧 Technical stack used daily:
- **Languages**: TypeScript, JavaScript (Node.js)
- **Frameworks and libraries**: Next.js, SvelteKit, Tailwind CSS, Prisma, Shadcn UI, NextUI, Flowbite
- **Authentication system libraries**: BetterAuth, Supabase Auth, AuthJS (NextAuth)
- **Databases and back-end**: PostgreSQL, Supabase, Redis
- **AI integration and automation**: OpenAI, Mistral, AI SDK
- **Deployment and hosting**: Vercel, Railway
- **Payment and security services**: Stripe, Polar
- **Collaboration tools**: GitHub, Git
French
Native or bilingual
English
Conversational
Remote only
Primarily works remotely
Experience
- Simplist (open-source)Full-stack DeveloperPRESS AND MEDIASeptember 2023 - Today (2 years and 11 months)Mulhouse, France- Design and development ofsimplist.blog, a full-stack SaaS platformfor content publishing (marketing site, dashboard, TypeScript API and SDK).- Implementation of ascalable monorepo architecture(Turborepo) withNext.js 16 / React 19on the product side andFastifyon the backend.- Integration of a robust technical foundation:BetterAuth(authentication),Prisma + PostgreSQL(data), media management (S3/R2), and transactional email workflows.- Development of an advanced editor experience (content creation, editing, management) with a modern UI inTailwind+ **shadcn/ui**, designed for performance and productivity.- Implementation of business logic (including **Stripe payments**) and shared components to accelerate product iterations.
- Imagine.place (open source)Full-stack DeveloperVIDEO GAMES AND ANIMATIONMarch 2025 - Today (1 year and 5 months)Mulhouse, France- Development of an artificial intelligence-powered platform for **interactive stories**, where users create or explore **evolving narrative adventures**.- Use of the latestNext.js 15andReact 19versions with App Router and Server Actions for a **modern and performant interface**.- Integration of real-timecontent generationvia OpenAI GPT and DALL·E, as well as Supabase Edge Functions for **backend logic**.- Implementation of abilingual interface(French/English), with **visual customization**, dice system, and user progress saving.-Award-winning project at the Supabase Hackathon**, recognized for its **innovation in AI usagefor interactive storytelling.
- Tweeets (open-source)Full-stack DeveloperSOCIAL NETWORKSApril 2023 - September 2023 (5 months)Mulhouse, France-Development of an intelligent tweet generator**, using **OpenAI GPT-3andGPT-4models to create relevant and creative content.-Design of a simple, fast, and intuitive interfacewith Next.js and Tailwind CSS, focused on ease of use.-Robust data managementwithSupabaseand **Prisma**, ensuring **scalability and performance**.- **Winner of the Supabase Hackathon 2023**, awarded for the **best use of artificial intelligence**.
Reviews
Yanis
Otarie
Reviewed on 9/27/2023
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Certifications
- Next.js App Router FundamentalsVercel2025
- React Foundations for Next.jsVercel2025