Freelancer profile translated to English.
Back to original languageAbout Fabien
Solutions Architect | Next.js, React Ecosystem & AI
I help companies and technical teams build high-performing platforms and automate their business processes through AI. Recently, I designed and developed a monorepo SaaS architecture (Next.js, Turborepo) integrating intelligent agents (context engineering).
With 25 years of experience and as a trainer in engineering schools, I support SMEs in their digital transformation. My approach is that of a craftsman: I don't sell gadgets, but tools designed to last and serve your business.
My expertise at your service for your growth:
- IT Architecture and Strategy:I design scalable and robust information systems. My role is to ensure that your technological choices today do not become technical debt tomorrow.
- Custom Product Development:From complex business applications to mass-market SaaS, I build your web (Next.js) and mobile (React Native) platforms with a focus on performance and security.
- Generative AI Optimization:I integrate intelligent agents and language models to automate your workflows and enhance the value of your business data.
- Scoping and Management:I ensure the transition between your business needs and technical reality. Each project is broken down into clear steps with validated deliverables, ensuring complete transparency on progress and budget.
French
Native or bilingual
English
Fluent
Remote only
Primarily works remotely
Experience
- KOALITYSolutions Architect and Lead DeveloperFebruary 2012 - Today (14 years and 4 months)Within Koality, I lead the technical strategy and the execution of high-value digital projects.My daily work involves building robust solutions across a broad technological spectrum, from PHP foundations (Symfony, WordPress) to the most modern JavaScript ecosystems (Next.js, React Native, AI). My focus is on the architecture of these complex environments to translate business needs into high-performing, secure, and technically sound products with no debt.
- ISEN / UBO / IUT / GRETA / CESIExpert Speaker and TrainerJanuary 2012 - Today (14 years and 5 months)In parallel with my design activities, I share my expertise by regularly speaking at engineering schools and higher education training centers (ISEN, UBO, GRETA...).I teach web architecture, Full-Stack application development, and best practices in UI/UX design. This knowledge-sharing activity guarantees my clients constant technological monitoring and the ability to explain complex technical subjects in a simple way.
- Projet 2025AI-Powered Structured Content Generation SaaS Platform - Proprietary ProductSeptember 2025 - October 2025 (1 month)Challenge:Faced with the slow creation of my training content, I developed an internal tool.Objective:Automate and accelerate content production, with the vision of eventually transforming it into a marketable product.Task:Architect a "creator" platform where an AI assists in content generation by following specific business frameworks and constraints, all through a simple and intuitive interface.Actions:- AI Expertise: The core of the system relies on my expertise in Contextual Engineering (CE). I developed a system of structured and dynamic prompts (agents) that guide a language model to generate coherent, high-quality narratives, adhering to a predefined "voice" and format.- Robust Architecture: I designed a monorepo architecture (pnpm, Turborepo) to isolate the business logic of the game engine from the different interfaces (creator and player applications).- Creator UI/UX: The frontend is a complex Next.js application with a polished creation experience, including drag-and-drop for sequencing and dynamic forms.
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Education
- CQP Multimedia Product Designer/DeveloperGRETA2002Cette formation a posé les fondations de ma double compétence en design et en développement. J'y ai acquis les principes fondamentaux de la conception graphique pour le web, de l'intégration (HTML/CSS) et du développement d'applications dynamiques avec gestion de base de données.