Freelancer profile translated to English.
Back to original languageAbout Jonathan
Former logistics and continuous improvement professional, I naturally applied my rigor and efficiency to front-end development. A passionate junior specialist, I design modern, performant, and maintainable web applications, with a stack centered on React, TypeScript, and Next.js.
🛠️ What I offer:
Creation of responsive, reactive, and optimized user interfaces for a fluid experience
Implementation of Next.js routes and pages with server-side rendering (SSR) and static site generation (SSG)
Strict typing and code robustness with TypeScript for scalable projects
Integration of REST and GraphQL APIs, efficient state management (Context, Redux, React Query)
SEO optimization, fast loading times, and code splitting
Technical support to structure your frontend around best practices
🎯 What you gain by working with me:
A methodical approach inherited from logistics: structuring, anticipation, and code clarity
Strong adaptability and a real understanding of operational field constraints
Transparent communication and fluid collaboration with your product, marketing, and back-end teams
Rigorous commitment to quality, meeting deadlines, and attention to detail
Main technical stack: React, TypeScript, Next.js, CSS Modules / Tailwind / Styled Components, REST / GraphQL API, Git, Vercel.
Feel free to contact me to discuss your project or your technical needs!
French
Native or bilingual
English
Conversational
Can work on-site
Paris (up to 10km), Lyon (up to 10km), Lille (up to 50km)
Experience
- N8ethosFront-end Development and IntegrationMay 2025 - Today (1 year and 1 month)Paris, FranceDuring this period, I consolidated and applied my front-end development skills through several concrete projects. I designed and developed modern user interfaces, focusing on creating applications that were both performant and intuitive.Specifically, I worked on:Interface design and prototyping: Using Figma to transform design concepts into functional mockups, ensuring an optimized user experience from the ideation phase.Custom interface development: Creating dynamic web applications with React and the Next.js framework for improved performance (SSR) and user-friendliness. All while using TypeScript for robust code.Web integration: Transforming designs into clean, responsive code, with a deep mastery of HTML and CSS, as well as using WordPress for content management solutions.These projects allowed me to independently manage the full lifecycle of a front-end application, from initial design to final implementation, while adhering to quality code standards.
- N8ethosGraphic Designer – Brand IdentityFebruary 2025 - Today (1 year and 4 months)Paris, FranceComprehensive design of visual identities: logo, color palette, typography, brand universe, and digital assets. From stylistic research to art direction, I ensure visual consistency across all touchpoints (web, social media, print).
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Education
- Meta Front-End Developer Professional CertificateCoursera
- JavaScript Foundations Professional Certificate by MozillaMozilla2025Cette formation certifiante, délivrée par Mozilla, consolide les bases et les pratiques professionnelles du développement front-end en JavaScript. Elle couvre l’ensemble des concepts fondamentaux du langage — variables, fonctions, structures de contrôle, objets, tableaux, et portée des variables — jusqu’aux notions avancées comme la programmation asynchrone (promises, async/await) et la manipulation du DOM (Document Object Model). L’approche pédagogique repose sur des exercices pratiques, des mises en situation réelles et un feedback immédiat, permettant d’acquérir une compréhension concrète des logiques du langage et de leur application en environnement web. L’objectif de cette certification est de valider une maîtrise opérationnelle du JavaScript moderne (ES6+), indispensable pour concevoir des interfaces interactives, intégrer des frameworks tels que React, et garantir une base solide pour tout développement front-end professionnel.