Freelancer profile translated to English.
Back to original languageAbout Kevin
Freelance Web Developer | React • JavaScript • Node.js
You are looking for a web developer to create or modernize a high-performing, responsive, and scalable web application or website?
I support freelancers, SMEs, and startups in designing modern interfaces and high-performance web applications, with a focus on code quality, user experience, and performance.
What I do:
• Creation and development of websites and front-end applications
• Integration of Figma mockups into pixel-perfect HTML/CSS
• Development of dynamic interfaces with JavaScript and React
• Creation of REST APIs with Node.js
• Redesign and modernization of existing sites
• Optimization of performance, accessibility, and technical SEO
• Responsive design and mobile-first approach
• Maintenance and functional enhancements
Technical Stack
React • JavaScript • Node.js • HTML5 • CSS3 • Sass • Redux • MongoDB • SQL • noSQL • Git/GitHub
My Added Value
• Clean, maintainable, and scalable code
• Rigorous and quality-oriented approach
• Clear and responsive communication
• Structured delivery and project support
• Curiosity and continuous learning
My Goal
To design high-performing and durable web solutions that meet the real needs of users and businesses.
Let's discuss your project!
French
Native or bilingual
English
Conversational
Can work on-site
Wasselonne (up to 50km)
Experience
- IndépendantReact / Javascript / Node.js Front-End Web DeveloperSOFTWARE PUBLISHINGMay 2026 - Today (3 months)Wasselonne, FranceFront-end Web Developer specializing in creating modern, responsive, and high-performing interfaces, I transform mockups (Figma, Adobe XD) into accessible, optimized websites and applications that meet user needs.I am involved in:• Semantic HTML5/CSS3 integration respecting best practices• Development and maintenance of styles with Sass (SCSS) and methodologies like BEM• Creation of CSS animations and modern user interactions• Adding dynamic interactions with JavaScript• Development of Single Page Applications (SPAs) with React and Redux• Responsive interface design with a mobile-first approach• Optimization of performance, accessibility, and natural referencing (SEO)• Back-end development with Node.js and Express.js• Design and integration of REST APIs• Use of relational (SQL) and NoSQL (MongoDB) databases• Testing (Vitest + React Testing Library)Accustomed to working with Git and GitHub, I ensure clean, maintainable, and scalable code, while collaborating effectively with designers, developers, or clients.
- OpenClassroomsKasa, Responsive React Real Estate Application with Routing and Reusable Components.SOFTWARE PUBLISHINGJune 2025 - February 2026 (8 months)Strasbourg, FranceContextKasa, a major player in private apartment rentals, wants to modernize its legacy application by migrating to a modern JavaScript stack. My mission was to develop the entire front-end in React from Figma mockups, in a context where the back-end was not yet available.Objectives
- Develop a responsive web application with React and Vite.
- Implement a reusable component architecture.
- Set up routing with React Router.
- Develop interactive components (carousel, collapse).
- Faithfully reproduce Figma mockups.
- Handle errors and non-existent routes.
- Structure styles with Sass.
Technical StackReact • Vite • React Router • JavaScript • Sass • JSON • Git/GitHubAchievements- Development of a Single Page Application with React.
- Implementation of complete routing and 404 error handling.
- Creation of reusable components: Banner, Card, Collapse, and Slideshow.
- Development of a carousel with circular navigation.
- Mobile-first responsive integration from Figma mockups.
- Style structuring with Sass.
- Local state management with React Hooks.
- Versioning and project tracking with Git/GitHub.
Results- Fully responsive application compliant with mockups.
- Modular architecture facilitating maintenance and future enhancements.
- Robust navigation with error handling.
- Interactive and reusable components.
- Adherence to front-end development best practices, performance, and accessibility.
Areas for Improvement- Addition of unit and integration tests (Vitest, React Testing Library).
- Future integration of a REST API.
- Advanced performance and user experience optimization.
- OpenClassroomsArgentBank Dashboard React/Redux with Secure Authentication and Transaction API DesignSOFTWARE PUBLISHINGJune 2025 - February 2026 (8 months)Strasbourg, FranceContext
- Development of an online bank's dashboard aiming to offer a secure and scalable application in a competitive environment.
- Objective: Implement a robust React application with secure authentication and an architecture ready for future transaction management.
Achievement- Development of a responsive React SPA from mockups
- Implementation of a secure authentication system (login, logout, protected routes)
- Centralized global state management with Redux
- Dynamic modification of user profile
- Consumption of an existing REST API
- Design of a proposed API route for transaction management (Swagger YAML)
- Application of performance best practices and reusable components
Results- Functional and secure React application
- Scalable architecture ready for the "transactions" extension
- Structured and maintainable state management
- Responsive and high-performing interface
Stack- React • Redux • REST API • Swagger • GitHub
Potential Evolution Areas- Unit and integration tests (Jest / RTL)
- Performance optimization (re-render reduction)
- CI/CD deployment
Recommendations
Be the first to recommend Kevin
Help this freelancer shine by sharing your experience working together.
These freelancer profiles also match your criteria
Agatha Frydrych
Backend Java Software Engineer
4.7
(3)
2
Baptiste Duhen
Fullstack developer
4.6
(4)
5
Amed Hamou
Senior Lead Developer
4
(2)
7
Audrey Champion
Web developer
4.3
(3)
4
Education
- Node.js DevelopmentInterskills2026Développement back-end avec Node.js
- Web IntegratorOpenclassroomsDéveloppement front-end HTML5 / CSS3 / Sass / Javascript / React.js / Redux
Certifications
- Web IntegratorOpenclassromms2026
- Node.js DevelopmentInterskills2026