Freelancer profile translated to English.

Description

Fullstack Developer React.js | Node.js | Golang

Looking for a fullstack developer capable of handling a web project from end to end, from front-end to back-end, with fast and reliable delivery? My role is to ensure that your application is performant, scalable, and easy to maintain.

I am a fullstack developer specializing in React.js, Node.js, and Golang. I work on the design and development of complete web applications: modern user interfaces, robust APIs, and integrations with your existing systems. I can assist you from technical scoping to production deployment.

I have already worked on various projects: SaaS platforms, business dashboards, real-time applications, internal tools, and technical overhauls of high-traffic websites. Each mission has allowed me to implement a clear architecture and develop solutions capable of supporting clients' business growth.

My approach is turnkey: a stable, documented, and maintainable deliverable. My goal is for you to be able to evolve your product without heavy dependencies or hidden technical debt.

I primarily use React.js for the front-end to build fluid and scalable interfaces, Node.js and Golang for the back-end to develop performant and reliable APIs, with an architecture designed for scaling. I also integrate versioning, testing, and CI/CD tools to ensure continuous quality.

If you want to move forward with your project, I suggest an initial video call to understand your needs. I usually respond within 24 hours and can be available quickly to start the mission.

Languages

French
Native or bilingual
English
Fluent

Workplace preferences

Can work on-site

Paris (up to 50km), Lille (up to 50km), Bordeaux (up to 50km), Marseille (up to 50km), Lyon (up to 50km)

Boulanger
Fullstack Developer | React.js | TypeScript
RETAIL (LARGE RETAILERS)
August 2025 - Today (10 months)
Lesquin, France
Objective:

Modernize the e-commerce platform to improve Web Performance, scalability, and SEO, reduce time-to-market, and enhance perceived quality across 500+ stores.

Achievements:

- Front-end redesign into Micro-frontends with SSR (Qwik + TypeScript) to reduce TTI and accelerate LCP: improved Web Performance, better SEO visibility, smoother experience, and enhanced perceived quality.
- UI unification via a reusable Sass design system typed in TypeScript: shared components between Micro-frontends, simplified maintenance, time saved on releases, and product consistency.
- SSR optimization and Qwik rendering strategies (islands, targeted hydration) + Web Performance audits: optimized initial loading, stable performance during retail peaks, improved conversions and visibility.

Technical Stack:

TypeScript, SSR, Micro-frontends, Qwik, React, GraphQL, Sass, Web Performance

Typescript JavaScript React.js Développement React.js Développeur TypeScript
Decathlon
Fullstack Developer React.js | Node.js
RETAIL (LARGE RETAILERS)
April 2022 - July 2025 (3 years and 3 months)
Villeneuve-d'Ascq, France
Mission Objective:
Design and deploy a cloud-native internal CRM tool for 200+ employees to optimize order processing, centralize customer information, and improve productivity.

Achievements:
- Fullstack development (React + Node.js/Fastify + TypeScript) with a fluid and scalable UI: productivity gains, improved employee experience, and enhanced perceived quality.
- Implementation of a cloud-native architecture on GCP with K8s and Docker: highly available application, automatic scalability, and increased reliability during peak activity.
- CI/CD automation and Datadog monitoring: fast and secure deployments, time saved on delivery, increased visibility into application performance.

Technical Stack:
React, Node.js, Fastify, TypeScript, GCP, Kubernetes, Docker, CI/CD, Datadog

Développeur TypeScript Développeur React Développeur Node.js React.js Node.js
Kiabi
Fullstack Next.js Developer
FASHION AND COSMETICS
January 2021 - March 2022 (1 year and 1 month)
Hem, France
Mission Objective:
Modernize the user experience and optimize e-commerce performance for a European retail brand, with a modern and scalable omnichannel architecture.

Achievements:
- Front-end redesign with React, Next.js, and TypeScript: smoother purchasing journeys, optimized UX, and enhanced perceived quality on desktop and mobile.
- Implementation of GraphQL and Sass design system: rapid integration of omnichannel journeys, visual consistency, reduced time-to-market, and productivity gains.
- Deployment on GCP with Kubernetes: automatic scalability, high availability, optimized Web Performance, and better SEO visibility.

Technical Stack:
React, Next.js, TypeScript, GraphQL, Sass, GCP, Kubernetes

Développeur TypeScript Développeur Next.js Développement Next.js Développement React.js Développement TypeScript