Freelancer profile translated to English.
Back to original languageAbout Quentin
👋 Hello and welcome to my profile!
I'm Quentin, a Fullstack Web Developer specializing in the modern Javascript ecosystem (React & Next.js). With a strong "Product" approach, I support companies and project owners from the idea to the deployment of their web applications, SaaS, and MVPs.
My goal? To deliver clean, performant code and an application ready to acquire its users.
🎯 My areas of expertise:
✔️ Creation of SaaS / Micro-SaaS (architecture, multi-tenancy, monetization)
✔️ Development of MVPs (Minimum Viable Product) to test your market quickly
✔️ Fullstack Web Applications and PWAs (Next.js, React, TypeScript)
✔️ Integration of payment solutions (Stripe) and authentication
✔️ Backend & Database Architecture (Supabase, Vercel, REST API)
🚀 Why work with me?
🔸Pragmatism:I don't do tech for tech's sake; I code to solve your business problems.
🔸Quality & Maintainability:Use of TypeScript and current standards for a sustainable project.
🔸Transparency:Fluid communication and regular updates at each stage of development.
💬 Have a project in mind or a technical need?
Don't hesitate to send me a message to discuss your vision. I'm very responsive and happy to chat about your challenges!
French
Native or bilingual
English
Conversational
Can work on-site
Mâcon (up to 50km), Lyon (up to 50km), Paris (up to 10km), Chalon-sur-Saône (up to 50km), Paray-le-Monial (up to 50km)
Experience
- KronozenExpert Web Developer - SaaS Suite for Construction Industry "Offline-First" (Timesheets & Scheduling)SOFTWARE PUBLISHINGFebruary 2026 - Today (6 months)Chalon-sur-Saône, FranceΞ Mission BriefConception of KronoZen, a modular business suite dedicated toconstruction tradespeople and small businesses. The goal: replacepaper timesheets and scheduling boards with amobile-first solution, usable without a network on construction sites.Ξ Technical Solutions Implemented🔸Modular Architecture: Suite composed of twoindependent modules — Timesheet (data entry, calendar, PDF/Excel exports)and Schedule (drag-and-drop grid, team management,automatic slot placement algorithm).🔸Offline Synchronization: Dexie.js (IndexedDB) coupled with Supabasefor uninterrupted experience, with automatic sync upon reconnection.🔸Employee Portal: Dedicated interface for employees (30-second entry,schedule consultation) with QR code authentication — no account creation.🔸Field PWA: Installable on mobile/tablet, large touch areas, high contrast for outdoor use with gloves.🔸Compliant Exports: Generation of PDF timesheets and exports for accountants, with timesheet management.Ξ ResultA complete suite covering the lifecycle of a construction team:site planning → time entry → accountant exports. Deployed as SaaS with per-module billing(LemonSqueezy).
- ObjectivelyLead Fullstack Developer - Creation of B2B SaaS (Next.js / Stripe)SOFTWARE PUBLISHINGOctober 2025 - Today (10 months)Paray-le-Monial, FranceΞ Mission BriefLead Developer for the design and complete development of a complex B2B SaaS. The objective was to create a robust platform capable of managing recurring subscriptions and large data flows with maximum performance for companies with multiple users.Ξ Actions & Architecture🔸Frontend: Modern architecture with Next.js (App Router) and TypeScript for easier maintenance.🔸Payment & Monetization: Advanced integration of Stripe (Webhooks, subscriptions, automatic billing).🔸Backend & Data: Implementation of Supabase for PostgreSQL database management, authentication, and storage.🔸UI/UX: Development of a responsive and high-performance interface with TailwindCSS.Ξ ResultA complete, scalable, and production-ready SaaS product. Implementation of an optimized conversion funnel and an architecture allowing for rapid feature additions.
- DIDIER CARLETFullstack Developer - WordPress Headless ArchitecturePRESS AND MEDIASeptember 2023 - September 2023 (1 month)Chalon-sur-Saône, FranceΞ Mission BriefTechnical design and development of the new institutional web portal for Mecateamcluster. The challenge: create an ultra-performant site optimized for search engines (SEO), while allowing the client team to continue using WordPress for daily content management.Ξ Actions Taken🔸Headless Architecture: Complete decoupling of the system. Using WordPress solely as an API (Backend) to serve data.🔸Frontend Development: Development of a modern and performant front-end with Next.js hosted on Vercel.🔸Data & SEO Optimization: Implementation of a GraphQL API to efficiently query complex databases (directories of 150 members, news, training) with server-side rendering (SSR/SSG) for optimal SEO.Ξ ResultAn institutional portal that is both robust for administrators (familiarity with WordPress maintained) and extremely fast for end-users (minimized loading times).
Reviews
M
Marvin
CEO - Welya
Reviewed on 6/11/2026
Quentin quickly grasped the project and was able to address our issues promptly. Professional and proactive in suggesting improvements.
Didier
DIDIER CARLET STUDIO
Reviewed on 7/15/2024
This was the first time I asked Quentin to develop a website for an ambitious, complex, and demanding project. Quentin demonstrated great professionalism, being very attentive to the client's requests. He fully committed to the development and creation of the website, showing qualities up to the project: rigor, punctuality, creativity, and a sense of initiative. His commitment and integrity make Quentin a safe bet. By hiring him, you will absolutely not be disappointed, quite the contrary...
Recommendations
AT
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Education
- Web and Mobile Web Developer, Computer Programming / Development, GeneralEcole O'clock2023Développeur web et web mobile, Programmation / développeur informatique, général
- BTS Architectural Environment Fitting, Building / Construction Finishing, Management and InspectionCité scolaire Albert Londres2014BTS Agencement de l'Environnement Architectural, Bâtiment / finition de construction, gestion et inspection
Certifications
- Web and Mobile Web DeveloperEcole O'Clock2023