I answer for what ships, including what the AI produced
“Do you use AI?” is no longer an interesting question. Everyone uses it, myself first, every day. The question that remains open, and that few people are willing to take on, is this one: when the code produced misbehaves, who answers?
A hands-on technical director: I make the decisions, and I build them.
With your team when you have one, alone when the product has yet to grow one.
The answer is often: nobody. The model commits to nothing. The supplier who ran it commits to little more if all they read is what compiles. And the client discovers the problem on the day it costs something.
I take that place. What I deliver, I have read; I can say why each decision is there; and I answer for its behaviour, whether I wrote it by hand or a machine produced the first draft.
- I deliver nothing I could not explain.
- What matters is protected by a check, rather than by my vigilance.
- There is a company behind this, with a contract, against which what was agreed can be held.
The path
École 42, after an initial degree in the humanities. That change of direction explains a good part of how I work: this trade consists mostly of reading — a system written by others, what a team meant to say, what a rule exactly covers.
Representative of the French-speaking community at the Mozilla Foundation.
Co-founder of Shareadesk, a peer-to-peer workspace rental platform: Gold Award, Aménagement category, Worknight Awards 2022. The service has been discontinued since September 2023.
Ten years spent modernising existing codebases and designing reusable foundations. At talkspirit, the modernisation of an inherited codebase, written in an old version of the language, towards current versions; then the introduction of TypeScript, which has the machine check the code before it runs, and of Docker, which makes the environments it runs in identical. At Urbasolar, a shared foundation for its internal applications, so that each one no longer had to reinvent what the others had already solved.
Since early 2024, the SFCTCV, a learned society for thoracic and cardiovascular surgery: I design and develop the front-end of its congress application, sole human author of 776 recorded changes on the front-end between March 2024 and September 2026. I inform the architecture choices on the server without writing its code, and features are designed in pairs with a senior back-end developer. The engagement is ongoing.
What my clients say
« He took ownership of our challenges with discernment […] all while anticipating our needs and proposing well-informed solutions. »
« Excellent skills in web development, architecture and AI. He brings a genuine product vision centred on UX. »
« Quentin adapted to the architecture very quickly […] Full of initiative, a good communicator. »
The frame
Design Horizon & Development, a French limited company (SARL). I work remotely from Montpellier, with occasional travel where the engagement warrants it.
To work well together
- A technical decision still open: that is where an architect has the most to bring.
- Access to the project history, to understand the existing choices before proposing others.
- Someone to take over, in time. I can build alone during the engagement; an architecture nobody else ends up understanding dies with whoever set it.
Thirty minutes to lay out your situation and leave with a direction
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