Quentin Le Bévillon

Full-stack developer specializing in TypeScript, React, React Native, and Node.js, I help companies, startups, and freelancers create modern, reliable, and business-oriented web and mobile applications.

I also work on AI-related projects: AI agents, task automation, API integrations like OpenAI, business assistants, content generation, data analysis, and automated workflows.

My approach is simple: quickly understand your needs, propose a clear and robust solution, and then deliver a maintainable, scalable, and truly usable product.

💻 Web applications with React, Next.js, and TypeScript

📱 Mobile applications with React Native and Expo

⚙️ Backends and APIs with Node.js, NestJS, or Express

🤖 AI Integration: OpenAI API, AI agents, custom assistants, and RAG

🔁 Business Automation: data processing, document generation, internal workflows

🚀 MVP, SaaS, and Business Application Creation

🛠️ Refactoring, maintenance, and improvement of existing applications

💳 Payment integration with Stripe, PayPal, or MangoPay

My goal is to transform an idea or business need into a concrete, clean, and efficient solution, whether on the web, mobile, or through AI tools.

Do you have a web, mobile, SaaS, or AI project to develop? Let's discuss how I can help you.