Freelancer profile translated to English.
Back to original languageAbout Valentin
I build reliable and structured backends for web applications and SaaS, using Node.js, NestJS, or Express, and PostgreSQL.
Whether it's starting a project from scratch or structuring an existing backend, I handle everything that happens on the server-side: API design, database modeling, authentication, role management, CI/CD.
On the frontend, I'm also comfortable with React / Next.js, which allows me to work on full-stack projects without any blind spots between the two layers.
What I bring concretely:
- REST APIs with Express or NestJS
- PostgreSQL modeling with Prisma or Sequelize
- JWT authentication, role management, and route security
- CI/CD setup and Docker containerization
- Third-party API integration (Stripe, Shopify Storefront, etc..)
Whether you're a startup launching its MVP, an SME looking to structure its existing backend, or a founder with an idea to realize, if you need a developer capable of handling the server-side, let's talk.
Available remotely anywhere in France.
French
Native or bilingual
English
Conversational
Spanish
Fluent
Can work on-site
Avignon (up to 40km), Aix-en-Provence (up to 20km), Valence (up to 20km), Lyon (up to 10km), Montpellier (up to 10km)
Experience
- Sorenza PatisserieLanding Page for "CRÈME" CoachingDIGITAL AND ITMay 2026 - June 2026 (1 month)Avignon, France- Development of a landing page with Astro.js for a coach specializing in independent pastry chefs- Integration of a conversion-oriented design to highlight the coaching offer- Deployment and production launchResult: a high-performing landing page ready to convert, delivered within the deadline (10 days).
- Elith PaysagesOne-Page Astro.js WebsiteARTS AND CRAFTSApril 2026 - April 2026Avignon, France- Design and development of a responsive one-page website with Astro.js- Implementation of fluid navigation and a user-centered design- Deployment and production launch of the siteResult: a lightweight and performant showcase website, SEO optimized and delivered turnkey.The project was developed in 5 days.
- AnonymeLP Redesign - Lovable to Astro.js MigrationHEALTH AND WELLNESSFebruary 2026 - February 2026Avignon, France- Analysis of the existing site's performance and identification of friction points- Complete migration to Astro.js for a performance-oriented architecture- Optimization of build and static rendering to improve Core Web VitalsResult: Lighthouse performance score 49 → 99, best practices 58 → 100.
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Education
- Web & Mobile Web DeveloperEcole O'clock2025Formation intensive orientée pratique, axée sur le développement fullstack d’applications web en environnement JavaScript. Conception et réalisation de projets concrets en autonomie et en équipe: Node.js, Express, PostgreSQL, Docker, React / Next.js, TypeScript.
- Bachelor's Degree in Marketing & CommunicationCFC Vincent de Paul2021Formation orientée stratégie digitale, communication et compréhension des enjeux business, utile pour concevoir des applications alignées avec les besoins clients.