Full Stack Developer
tl;dr: fullstack developer who loves building and shipping — React / Angular / Spring Boot, based in Rennes, France
I work with agentic AI and agile methods. I'm also a UI/UX designer: I did graphic design for a long time alongside my computer science studies, notably for clients.
I place a lot of importance on AI-driven automation: I use Claude Cowork daily, and more recently Codex (ChatGPT), and I keep an active watch on the agentic AI ecosystem. I also like keeping an eye on a project's security, networking, infrastructure and DevOps. My MIAGE* background also gave me a strong interest in finance and business management, and I'm proficient in the Agile Scrum methodology.
I adapt quickly to different contexts and enjoy owning a project end to end. Currently backup technical lead at Capgemini, I'm open to opportunities as a fullstack developer, at a company, startup or scale-up.
*MIAGE, in a sentence: a specialized Master's program combining Computer Science & Software Engineering with Business Management & Information Systems Architecture.
Committed to software craftsmanship*: clean, tested, maintainable code, with constant attention to detail and quality.
A genuine design and UI/UX sensibility, fast iteration with real feedback, end-to-end ownership.
Applies DRY, SOLID and KISS principles, and is proficient in the Spec-Driven Development (SDD) methodology.
Versatile and curious to learn, with strong interpersonal skills and professionalism.
*Software craftsmanship, in a sentence: treating code as a craft, where quality, tests and maintainability are held to the same standard as functionality itself.
Sep 2025 — Present | Capgemini — Fullstack Developer (full-time)
Web application development with Angular, Spring Boot, Git, Docker, Kubernetes and microservices architecture. Regular communication and client demos in an agile setup. Currently backup developer for the technical lead, occasionally involved in technical design. Strong grasp of the project. Rennes, France.
Sep 2023 — Aug 2024 | Capgemini — Fullstack Developer (apprenticeship)
Web application development with Angular, Spring Boot, Git and Docker. Rennes, France.
Apr 2023 — Aug 2023 | Capgemini — Java Developer (internship)
Desktop application development in Java, CI/CD with Jenkins. Rennes, France.
2023 — 2025 | ISTIC — Université de Rennes — Master's degree in Computer Science (MIAGE)
DLIS track (Integrated Software Development and Systems) · With honors
2019 — 2023 | ISTIC — Université de Rennes — Bachelor's degree in Computer Science (MIAGE)
Computer Science Methods Applied to Business Management · With merit
2019 | Lycée Chateaubriand — High school diploma, sciences
Adverse Health Event Reporting Portal — Ministry of Health · 2025 — Present
Developing the latest features and ongoing maintenance for the national platform reporting mandatory notifiable diseases.
October 2025 — Present
Company project at Capgemini for the French Ministry of Health: a national platform used by healthcare professionals and anonymous users to report certain health events.
Agentos — AI Agent Orchestration · 2026
A tool that analyzes a repository to automatically identify the AI agents and skills a project needs.
July 2026
Side project around agentic AI, built with Next.js and Claude (.claude/ folder).
Agentos imports a repository path and automatically identifies the agents and skills a project needs, based on a clear hierarchy:
Super orchestrator → Orchestrators → Experts
Graph visualization of a project's agent hierarchy
Skills assigned based on each agent's position in the hierarchy
Every agent is humanized and personalized (name, own personality)
Suggestions to improve task allocation
Reduced token consumption
Marketplace (work in progress) of skills and agents that can express themselves, for example:
"Léo (git manager): I'll rebase on develop first, then commit & push the new feature!"
An orchestrator should always know who to delegate to, and an expert should always know what to do without getting it wrong.
Portfolio Redesign · 2026
Redesign of my personal portfolio to simplify it and make it more ergonomic.
July 2026
Nibelus — Financial Calculators · 2025
Finance calculator app (P/E ratio, PEG, EPS) to study stocks and manage long-term investments.
June 2025
Personal finance app to track and study my stock market investments.
Study new stocks, ETFs and IPOs, and manage long-term investments with custom-built tools.
Powerdusk — Discord Community Management · 2024 — 2025
SaaS platform to manage Discord communities for content creators, with a bot module marketplace and automated messaging.
January 2024 — March 2025
Side project: a Discord community management platform for content creator agencies and creator-economy creators (YouTubers, Twitch streamers, Instagram creators...).
Give community managers more visibility and control by letting them manage their Discord servers from a single dashboard, and help creators stay close to their viewers.
Graphic designer and developer on the project, responsible for the concept and turning ideas into reality. Managed a team of 3.
Community Mini-Games Server · 2020 — 2023
Lead developer and art direction for a Java-based mini-games server, managing a team of builders and driving the full infrastructure.
January 2020 — December 2023
Personal project: designed and ran a Java-based mini-games server, available 24/7, where players connected freely to start a game together.
Frontend: Next.js, React, Angular, TypeScript, Tailwind CSS
Backend & Data: Spring Boot, Node.js, PostgreSQL
Architecture & Infrastructure: Microservices, Docker, Kubernetes, Helm
CI/CD: Git, GitHub CI/CD, Jenkins
Tools: VS Code, IntelliJ IDEA, Figma, Ghostty, Superset, Claude Cowork, ChatGPT/Codex
Other Technologies: TanStack Start, Shadcn, NestJS, RabbitMQ, Monorepo, Nginx
Languages: French (native) · English (close to fluent)
React Key Concepts — An In-Depth Guide to React's Core Features
Maximilian Schwarzmüller
Deepening React 19 fundamentals: Server Components, the newest hooks, and modern best practices.
Kotlin Coroutine Confidence — Untangle Your Async, Ship Safety at Speed
Sam Cooper
Deepening structured concurrency in Kotlin to write robust, readable asynchronous code.
Matthias Baccino
A solid foundation in personal finance and investing, echoing the interest in finance my MIAGE background gave me.
Le guide visuel d'éducation financière — Devenez votre meilleur conseiller !
Guillaume Simonin
A visual, approachable take on saving and investing, in the same spirit as Nibelus, my personal finance tooling project.
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