Freelancer profile translated to English.
Back to original languageAbout Clément
Fullstack Developer | Node.js NestJs Vue.js React.js
Is your **application slow, accumulating technical debt, or showing its limits**?
Do you need to **launch a reliable and secure product quickly**?
I step in totake over an existing codebase, audit it,ordesign a solid, performant, and scalable productwithNode.js, NestJs, Vuejs& **Reactjs**.
ℹ️A little about me:
- Expertise inNode.js, NestJs, Vuejs, Reactjs, DevOps (Docker, Kubernetes) & integrated AI (local or remote)
- Expertise insecurity (OAuth2, 2FA, OWASP) & Performance
🏗️Recent achievements:
- Modernization of a CRM inNestJs, Node.js & Vuejs → 10 hours of weekly support saved per user
- Redesign of aSaaS NestJs, Node.js & Reactjsorder funnel→ 33% of orders recovered after abandonment
- Redesign of anOAuth, 2FA, Captcha Node.js & Express.jsauthentication system→ +51% platform registrations
- AI exam platformNestJs, Node.js & VueJs tested at the scale of a hundred users → automated feedback
- Software inNestJs, Node.js, VueJs & local LLMto create technical documentation vocally and streamline generational knowledge sharing
- + other projects
💡Why do my clients trust me?
- I deliver alasting architecture, not just code
- I understand your business challenges
- Regular updates, technical simplification, and responsiveness
🤝Shall we work together?
- Based inLyon, available for travelthroughoutFrance
- Availablefully remote
Response within an hour, 7 days a weekvia Malt messaging
French
Native or bilingual
English
Fluent
German
Basic
Can work on-site
Lyon (up to 50km), Paris (up to 50km), Marseille (up to 50km), Bordeaux (up to 50km), Nantes (up to 50km)
Experience
- WoodstockDevelopment of a Warehouse Management System (WMS)LOGISTICS AND SUPPLY CHAINFebruary 2026 - April 2026 (2 months)Paris, FranceDevelopment of a complete Warehouse Management System (WMS) for a multi-site logistics operator managing teams of handlers.
- Administration Dashboard: team management, task assignment, real-time tracking
- PWA application for portable terminals (PDA): offline-first interface, QR code scanning
- Automatic dispatch of products among handlers based on workload and availability
- Multi-role authentication, complete stock movement traceability
- Stack: NestJS, PostgreSQL, Vue.js / Quasar (PWA), Docker, TypeScript, Prisma ORM
- GreenbayMulti-brand E-commerce PlatformRETAIL (LARGE RETAILERS)December 2025 - April 2026 (4 months)Lyon, FranceDesign and development from scratch of a multi-tenant SaaS platform for franchise networks. Each brand has an independent storefront, isolated inventory management, and separate financial flows.
- Multi-tenant architecture with data isolation by middleware (request-level role filtering)
- Stripe Connect integration in Direct Charges: each franchise receives its payments directly, with application fees collected
- 3 delivery methods: Colissimo, click & collect (6-digit code, 24h deadline), courier with real-time geolocation PWA
- Loyalty program, automatic generation of compliant PDF invoices, 19+ event-driven workflows
- 5 independently deployed applications: 4 Next.js storefronts on Vercel, backend on Railway
- Stack: MedusaJS v2, Next.js 15, PostgreSQL, Redis, Docker, TypeScript
- SODIGITALEKanban Module Refactoring React 19 | Migration @dnd-kit & Modular ArchitectureDIGITAL AND ITDecember 2025 - January 2026 (1 month)Lyon, FranceDevelopment and complete refactoring of a Kanban module within an industrial performance management React application.Migration from React 18 to React 19 with incompatibility resolution and replacement of the obsolete drag'n drop library (react-beautiful-dnd) with @dnd-kit.Design of a modular TypeScript frontend architecture:reusable componentscustom hooksdata adapters and React contextsImplementation of a high-performance drag'n drop system (60 FPS) with native mobile and touch support.Creation of a UI abstraction layer with 30+ wrapper components allowing for progressive dependency migration.60% reduction in code volume per componentImplementation of unit tests with Vitest and complete technical documentation
Reviews
A
Abderrahim
EQUANS
Reviewed on 11/6/2025
Clément is very competent, accommodating, and very responsive. I highly recommend him.
Tony
Tony Bano
Reviewed on 7/22/2025
I called on Clément to assist me with the back-end development of a SaaS. He was super responsive, involved, and offered great technical suggestions. The work was done rigorously, on time, and with excellent communication. A true trusted partner, I recommend 100%.
Recommendations
HC
OC
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Education
- Digital Technology Architect42 Paris- Apprentissage des langages C et C++ - Formation sur Node.js, Vue.js et son écosystème - Apprentissage de plusieurs méthodologies, notamment Agile et Scrum - Apprentissage de plusieurs modèles ( conventionnel, Kruchten, ...) et d’architectures (en couches, en flots de données, orientés objets) Quelques exemples de projets : - Un serveur HTTP/1.1 fonctionnant comme Nginx, et fonctionnel en production - Un moteur de jeu en raycasting avec format de création de carte - Un site internet pour jouer à Pong en multijoueur, avec un chat complexe intégré
- D2e - Student EntrepreneurUniversité Lyon 22018Formation juridique sur la création et la gestion d’entreprise Rendu de fin d’études portant sur la création d’une entreprise (business plan, plan comptable, ...) devant un jury de chef d’entreprise reconnu