Mathis Beauville
I design the system, I write it, I deploy it.
Freelance fullstack developer with a soft spot for architecture and infrastructure.
Available for a fixed project, alongside my contract at E.Leclerc (SIPLEC).
Work
- Role2026 – ongoingE.Leclerc (SIPLEC)Development and architecture of applications integrated into the information system, in the e-mobility teamSee the role
- Role2022 – 2025EssilorLuxotticaThree years in R&D: 7 internal applications, shared libraries, and teams given better toolsRead the case study
- Product2025 – 2026FitexTailoring a CV to each job offer, without ever letting it lieRead the case study
- Product2026SalonBoard games on the TV, phones as controllersRead the case study
FitexJoin your team
I work where your team needs it: on the product, on the architecture, all the way to deployment. At E.Leclerc, I write code and take part in the architecture decisions.
No minimum length. Remote, with the occasional day on site when it helps.
- TypeScript
- Angular
- React
- Node.js
- NestJS
- Docker
- Kubernetes
- Flux
- CI/CD
Deliver a project
A website, an internal tool, an application that takes payments.
You walk away with the code, the access and short documentation: nothing depends on me afterwards. On your side, I need one person who can decide.
- 1. We talk30 minutes to understand what you need. Book a slot
- 2. I make a proposalA clear scope and a clear quote.
- 3. I buildYou watch the project take shape.
- 4. Go-liveOn your hosting or on my infrastructure, then support and maintenance.
Already delivered
- A website and its admin area.
- A landing page for an IT services company.
Two clients who would rather not be named here.
About
I have always wanted to understand how things work. One day someone put a computer in my hands, and I never put it down.
Since 2022 I have worked inside teams at large groups: more than three years in R&D at EssilorLuxottica, and since April 2026 on a contract at E.Leclerc (SIPLEC), in the e-mobility team.
I don’t stop at the code: the authentication service shared across applications, the CI/CD pipelines, the architecture decisions, the deployment on Kubernetes.
I run infrastructure at home too: this site is served from my own cluster, deployed with GitOps.
I am trusted with subjects to run on my own. I like passing things on (I trained around a hundred colleagues in Git), and I never say no to a good architecture debate.
Based in the Paris region. I work in French and in English (C1, TOEIC 940).
On a motorbike when I’m not coding. Definitely not (struck out) a coffee drinker: the job made me one.
Also
- VS Code theme2024Vesper++Peppermint and orange, published on the Marketplace.See it on the Marketplace (new tab)
- Hackathon2022 – 2024La Nuit de l’InfoThree editions on the organising team, in Évry, with more than 250 participants.nuitdelinfo.com (new tab)
- ThesisA tutor that doesn’t give the answerA chatbot that guides students through their programming exercises, evaluated with a before-and-after protocol.Read the thesis (70 pages, in French)PDF (new tab)
- EducationMaster’s degree in MIAGE, software engineering for the webUniversité Paris-Saclay
- EducationBachelor’s degree in MIAGEUniversité Paris-Saclay
Vesper++
La Nuit de l’Info
Master’s degree in MIAGE, software engineering for the webContact
A few lines are enough to start. Tell me what you want to achieve, and I’ll reply with questions or a proposal.