Freelancer profile translated to English.

Description

Fullstack Web Developer | React.js | Next.js | Node.js | Typescript ✨

Launching anMVP**, needing to **scaleyour current application, or are your tools showing their limits?

I intervene to structurenascent projects (Startups/SMEs)as well as tostrengthen teamsoncomplex architectures.My goal: todeliver a reliable productimmediately, but designed to support your future growth.

With 6 years of experience, I have acquired technical rigor within market leaders (Adeo, Leroy Merlin, Decathlon) and on international projects (Gaia-X).

Why **collaborate together**?

🚀 For Startups & SMEs: I bring you "technical excellence" from day 1. No patchwork: I build sound foundations (**Clean Architecture, SEO ready**) that will prevent you from having to rewrite everything as you grow. I am **fullstack**, therefore autonomous from the database to the pixel in the front.

🏢 For Large Corporations: I master your challenges of volume,technical debt (Legacy)**, **testing (TDD)**, and **industrialization(CI/CD, Docker) in complex environments.

Product Launches (MVP):Rapid and robust developmentof SaaS and B2B applications.

Redesign & Migration: Modernization of aging applications to modernReact.js/Nodestacks.

Infrastructure:API implementation(REST/WebSocket) and **automated deployments**.

My approach is turnkey: professional, documented, and stable code that won't force you to constantly fix the same bugs.

Technical Stack:React.js**, **Next.js**, **Typescript**, and **Node.js

Looking for a technical expert capable of giving your project a secure boost?

Contact me (response within 1 hour) for an initial discussion to schedule a video call and see how I can support you from idea to deployment.

Industry field of expertise

Languages

French
Native or bilingual
English
Fluent

Workplace preferences

Can work on-site

Lille (up to 50km)

Leroy Merlin
Front-End Web Developer | Tanstack Router | React.js | Typescript
September 2025 - December 2025 (3 months)
Villeneuve-d'Ascq, France
→ Mission Objective: Design and develop the application ecosystem for massive collection of employee feedback during strategic Vision 2035 events.

→ Achievements:
Industrialized Front-End development by creating a "Starter Kit" (**Vite, React**) accelerating the deployment of future applications.
Developed and published a library ofreusable components(hosted on Jfrog) ensuring visual consistency and facilitating the integration of complex UIs faithful toFigmamockups.
Optimized performance and data management (**Tanstack Libs**) to streamline interactions with the API and secure feedback submission.
Implemented a testing strategy (**Vitest, Playwright**) andCI/CD pipelines(Github Actions) ensuring code robustness and maintainability.

→ Technical Stack: React.js, Typescript, Tanstack Query/Table, Vite, Vitest, Playwright, Github Actions, Jfrog, Lumapps, Figma.
Web Developer Front-End Development Tanstack React.js Typescript
ADEO
Fullstack Web Developer Nest.js | NX | Typescript
June 2024 - June 2025 (1 year)
Ronchin, France
→ Mission Objective: Optimize product recommendation engines for the group's e-commerce sites (Leroy Merlin, Bricoman) and modernize the technical infrastructure through strategic migration.

→ Achievements:
Developed new recommendation strategies (personalized orchestration, dynamic zones) and implementedA/B teststo maximize conversion rates.
Complete backend overhaul throughmigration of legacy code(Java) to a modernNode.js / NestJSarchitecture, reducing technical debt.
Restructured project architecture by implementing anNX MonorepoandDockercontainerization to streamline development.
Ensured delivery reliability through writingunit and E2E tests( **Jest, Playwright**) and updating technical documentation.

→ Technical Stack: NestJS, Node.js, Typescript, MongoDB Atlas, NX Monorepo, Docker, Jest, Playwright, Handlebars.
NestJs MongoDB Handlebars Web Developer Fullstack Development
Gaia-X
Open Source Software Developer | React.js | Typescript | WebCrypto
September 2022 - December 2023 (1 year and 3 months)
Bruxelles, Belgium
→ Mission Objective: Design and develop the firstopen-source software componentsof theGaia-Xecosystem (European project) to ensure sovereign and secure data sharing.

→ Achievements:
Developed the "Gaia-X Wizard" (**Next.js**), a complex onboarding application integrating cryptographic signing (**WebCrypto**, Ubikey hardware keys) and Verifiable Credentials generation.
Architected the Compliance engine (**NestJS**) ensuring data integrity verification (JSON-LD) and interaction with decentralizedAPIs(Trust Anchors).
Created an event-based "Offline-First"PWA(**React, Vite,** Service Workers) used during international summits, includingPush notificationsand an organizer Back-office.
Automated technical documentation viaCI/CD (Gitlab CI)and provided technical support in English to international partners for service integration.

→ Technical Stack: React.js, Next.js, Express, Progressive Web App (PWA), IPFS.
React.js Next.js Express Progressive Web App (PWA) IPFS