Freelancer profile translated to English.

Description

Expert React & Next.js | Web Development & AI MVP | 10 years of experience

I've been a React and Next.js developer for over 10 years, assisting startups, SMEs, and large corporations (Decathlon, SNCF, Colissimo) with their web projects.

My goal? To create high-performing solutions that address your concrete business challenges.

🎯What I can do for you:

Showcase Websites & Landing Pages:I develop fast, SEO-optimized Next.js sites that convert. Responsive design, CMS integration (Strapi, Contentful), Shopify/WooCommerce e-commerce. Result: better Google visibility and optimized conversion rates.

React/Next.js Web Applications:From dashboards to full SaaS, I design scalable applications with a solid TypeScript architecture. Automated tests (85%+ coverage), REST/GraphQL APIs, CI/CD. Your app will evolve without technical debt.

AI MVPs & Projects:Want to integrate ChatGPT, Claude, or Gemini? I build custom intelligent chatbots and AI assistants. Functional MVP delivered in 2-4 weeks to quickly test your market.

Audits & Optimization:Is your site slow or hard to maintain? I analyze bottlenecks and improve your performance. At Decathlon, I boosted Core Web Vitals by +40%. Migration to Next.js App Router, clean code refactoring, test implementation.

💻Technologies I use daily:

React, Next.js 14/15, TypeScript, Svelte • OpenAI, Claude, Gemini, LangChain • Tailwind CSS, Shadcn UI, Material-UI • Jest, Cypress for testing • Git, Docker, Vercel, AWS • SEO and performance optimization

🔧How do we work together?

We start with a discussion to fully understand your needs. I'll send you a detailed quote within 48 hours. Then, development in short sprints with regular check-ins.

Does your project deserve a serious React developer?

Let's discuss it! Free quote within 48 hours + complimentary audit of your current project.

Industry field of expertise

Languages

French
Native or bilingual
English
Fluent

Workplace preferences

Can work on-site

Paris (up to 50km), Lille (up to 50km), Orléans (up to 50km), Rouen (up to 50km), Strasbourg (up to 50km)

DECATHLON
React & Next.js Developer | Svelte | Node
E-COMMERCE
November 2022 - Today (3 years and 9 months)
Lille, France
💻 I contributed to the development of the Decathlon France website, participating in the design and implementation of new features while ensuring the maintenance of existing solutions.
🚀 Integrated into an Agile Scrum team, I worked on a modern technical stack including:

- React.js & Next.js and Svelte for front-end development
- TypeScript and JavaScript for robust and maintainable code
- TanStack Query for optimized data management
- shadcn/UI and TailwindCSS for elegant and responsive interfaces
- Prisma ORM for efficient database management
- NextAuth for secure authentication
- Zod for schema validation
- AI integration to optimize certain features and user experiences

🤝 My role involved close collaboration with developers, designers, and Product Owners to deliver high-performing, scalable, and user-centric solutions.
React.js Next.js Web Developer Web Integration Svelte
SNCF RESEAU
React & Next Developer | Node
TRANSPORTATION
January 2020 - Today (6 years and 7 months)
Lille, France
💻 Implemented user interfaces for managing interventions and anomalies.
🚀 My main responsibilities:

- Creation of responsive and ergonomic content
- Correction and maintenance of existing code to ensure application stability
- Configuration of the Maximo back-office (IBM) for data and process management
- Development of mockups, new features, and reusable components
- Implementation of unit tests with Jest to guarantee code quality and reliability

🛠️ Technical Stack: React.js, Next.js, TypeScript, TanStack Query, shadcn/UI, TailwindCSS, Prisma ORM, NextAuth, Zod, Jest, Responsive Design, IBM Maximo.
React.js Next.js JavaScript / TypeScript Web Developer Web Integration
Colissimo
Node JS / Express JS Developer
TRANSPORTATION
January 2019 - December 2019 (1 year)
Paris, France
💻 Implemented a dynamic parcel sorting solution.
🚀 My main contributions:

- Development of a REST Web Service with Node.js, Express.js, and MongoDB
- Participation in functional analysis and estimation of User Stories using agile methodology
- Design and modeling of data to optimize performance and consistency
- Manipulation and storage of objects in the MongoDB database
- Advanced file management with Node.js's fs module
- Implementation of a secure authentication and authorization system (OAuth 2.0)

🛠️ Technical Stack: Node.js, Express.js, MongoDB, OAuth 2.0, JavaScript, REST API, Agile/Scrum.
Node.js Express MangoDB JSON JavaScript