Freelancer profile translated to English.
Back to original languageAbout Selim
Next.js | React.js | TypeScript Web Developer 🚀
I help you transform your product into a modern, robust, and scalable application, built withReact.js**, **Next.js**, and **TypeScript.
🔥 What I do
I develop or refactor your web applications to be:
• Performant (Optimized Core Web Vitals)
• Reliable (Clean architecture, maintainable code)
• Scalable (Designed to grow with your business)
• SEO-friendly (Thanks to Next.js: SSR, SSG, metadata, speed)
Whether it's for a complete overhaul, a migration to a modern stack, or to strengthen your front-end team, I intervene quickly and effectively.
💼 10+ years of experience in diverse environments
I have worked in organizations with very different challenges, which allows me to be operational immediately: Startups, Web Agencies, SMEs, or large corporations.
This diversity has enabled me to acquire a fine understanding of product objectives, business constraints, and professional development best practices.
🧩 My achievements inReact/Next.js/TypeScript
I have contributed to various web projects:
• SaaS applications and interactive dashboards
• SEO & conversion optimized landing pages
• Internal tools, reporting, back-offices
• Complex web applications with authentication, roles, and workflows
🛠️ Technical Stack
React.js, Next.js, TypeScript, JavaScript, Tailwind CSS, Shadcn, Material UI, Ant Design, Prisma, Sequelize, Stripe, Node.js…
🤝 Need aNext.js/Reactexpert to boost your project?
Whether you're starting from scratch, an MVP, or an existing base, I'll guide you from idea to deployment:
👉 Refactoring or optimization
👉 New product creation
👉 Specialized front-end reinforcement
👉 Technical audit & recommendations
📞 Contact me (response within 1h) to discuss your project and get a clear, personalized action plan.
English
Fluent
Spanish
Fluent
French
Native or bilingual
Can work on-site
Paris (up to 50km), Marseille (up to 50km), Annecy (up to 50km), Nice (up to 50km), Lyon (up to 50km)
Experience
- BREITLINGReactJs DeveloperLUXURY GOODSMarch 2024 - June 2025 (1 year and 3 months)Zurich, SwitzerlandComplete refactoring of the storefront to a modern stack and development of an internal back-office for employee tracking.→ Frontend Stack:React.js**, **Next.js**, **Typescript**, **JavaScript ES6+**, **GraphQL**, **Contentful→ CMS Integration: Implementation and use ofContentfulforheadless contentmanagement→ Development of performant and modularReactinterfaces for the new version of the storefront→ Technical Refactoring: Migration toReact+Next.jsto improveperformance**, **SEO**, and **maintainability→ Development of an internal back-office inReact+Typescriptfor employee tracking (reporting, analytics, operational monitoring)→ UX / UI Optimization to provide smoother navigation and better visual consistency→ API Communication:GraphQLintegration to optimize data exchange on thefrontend→ Payment Integration: Use ofAdyenin the application flow→ Agile team collaboration on the evolution of the storefront and internal tools**Critical Mission**: Totally modernize the storefront and provide a performant back-office to improve operational efficiency.
- UnlimitdFullStack developer ReactJs / NodeJs / GraphQLBANKING AND INSURANCESeptember 2023 - April 2024 (7 months)Neuilly-sur-Seine, FranceImprovement of the RBF financing application and tracking tool for e-merchants, with integration of external services to optimize the financial process.→ Frontend Stack:React.js**, **Typescript**, **JavaScript ES6+→ Backend Stack:Node.js**, **GraphQL→ Improvement of the UX and functionalities of the RBF portal to streamline the financing application process→ Refactoring of business workflows to simplify the creation, tracking, and validation of applications→DocuSignIntegration: automatic contract generation and implementation of electronic signatures in the API→CodatIntegration: connection to client financial data with real-time revenue tracking→ Optimization of data processing to ensure reliability and speed in financial decisions→ Agile team collaboration for product evolution and implementation of new features**Critical Mission**: Streamline and automate the financing process through the integration of secure services and real-time financial monitoring.
- ONTEXReactJS developerHEALTH AND WELLNESSNovember 2021 - July 2023 (1 year and 8 months)Paris, FranceComplete refactoring of the existing application, performance optimization, and development of new features to meet user and business needs.→ Frontend Stack:React.js,**Typescript**,JavaScript ES6+→Refactoringof existing code: in-depth analysis of the codebase,restructuringof components, improvement of readability and maintainability→Performance Optimization**: reduction of loading times, improvement of page rendering, and decrease of **JavaScriptfootprint→ Development of new features according to business needs and user feedback→ Continuous improvement of user experience through targeted evolutions of the interface and application behavior→ Collaboration with product teams to prioritize optimizations and evolutions**Critical Mission**: Stabilize the platform and significantly improve performance while delivering new features.
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Education
- Professional License in Web and Multimedia Integrator DesignUniversity Paris XIII2013