Freelancer profile translated to English.
Back to original languageAbout Alex
JavaScript Fullstack Developer — React / Node.js
I design and develop end-to-end web applications: React frontend (JSX), Node.js/Fastify backend API with Prisma, authentication (Auth.js), and Docker/Traefik infrastructure when the project requires it.
Here are some concrete examples of what I've delivered recently:
A SaaS platform with an integrated AI assistant (Vercel AI SDK, Claude/Mistral) to automate business tasks
A digital card management API (Fastify + Prisma + Docker + MinIO/S3 for storage, integrated anti-bot protection)
I deliver production-ready code: strict conventions, named exports, reusable components, no disposable code that will need to be redone in 6 months. My goal: code that your team can evolve serenely, with a tested and documented foundation from the start.
Let's discuss your project together.
French
Native or bilingual
English
Fluent
Remote only
Primarily works remotely
Experience
- Client confidentielAI Assistant Integrated into a SaaS PlatformSOFTWARE PUBLISHINGJanuary 2026 - February 2026 (1 month)Montpellier, FranceFrontend development of a conversational AI assistant integrated into a SaaS platform, with response streaming and real-time markdown rendering.**What I did**:
- Integration (UI components, response streaming, etc.)
- Connection to several language models (Claude, Mistral) depending on use cases
- Real-time markdown rendering of assistant responses
**Result**: a fluid and responsive AI assistant, natively integrated into users' daily work tools. - VET e-CardDigital Pet Health Record PlatformMEDICALMay 2025 - Today (1 year and 3 months)Montpellier, FranceFull-stack development of a collaborative platform connecting veterinarians and pet owners around a centralized digital health record, including multi-user management, medical record sharing, and dematerialized administrative procedures.**What I did**:
- API: Node.js/Fastify, Prisma
- React.js SaaS Dashboard
- Containerized infrastructure: Docker, Traefik (reverse proxy)
- File storage (documents/medical records) via MinIO
- Form security: anti-spam CAPTCHA, phone number validation and formatting
- Account management with automated cleanup of unverified registrations
- Multi-user management with custom role system and fine-grained access control
- Invitation system to join an organization (clinic, association, breeding farm)
- Internal messaging between platform users
- VET e-Card sharing between profiles (transfer upon change of ownership)
- News feed for organizations and users
- Online administrative procedures module
- Custom administration dashboard
- Push/in-app notification system
- PWA
**Result**: a complete platform, from back-end to user interface, enabling veterinarians, breeders, and associations to digitize animal health monitoring and their daily interactions. - Marie-Anna Graphiste FreelanceGraphic Designer PortfolioARTS AND CRAFTSFebruary 2023 - February 2023Montpellier, FranceDesign and development of a React portfolio website for a freelance graphic designer, intended to showcase her visual work and convert visitors into clients.What I did:
- Frontend development in React, responsive (mobile/desktop)
- Project gallery with filtering by category (illustration, branding, etc.)
- Custom interface aligned with her visual identity (palette, typography, layout)
- Integrated contact form (EmailJS) for direct contact with prospects
**Result**: an online portfolio website that the client uses to showcase her work and attract new clients.
Recommendations
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Education
- Ruby on Rails DeveloperThe hacking project2019The Hacking Project est un bootcamp de 12 semaines. La pédagogie est la même que l'école 42 c'est-à-dire un système de projet validant quotidien à respecter. Plusieurs languages et compétences informatiques nous sont enseigné ainsi que le travail en équipe, l'entraide et la rigueur. Cette formation se base sur le language Ruby avec son fameux framework Rails. Le language est vu dans son intégralité.
- Professional Title of Web and Mobile Web Developer, level 5 (bac+2)O'clock2021Développement web Formation réalisée pensant 6 mois: 5 mois – 700 heures intensives de formation 3 mois de socle : HTML5/CSS3/JavaScript/Node.js/PostgreSQL 1 mois de spécialisation : React 1 mois de projet
Certifications
- Individual Training CertificateThe hacking project2019