About
One engineer. Ten years of shipped software.
MissionMind is the studio of Alan Chauchet — a senior fullstack engineer in Paris. Ten years inside product teams, as an employee and now as a freelancer, with a strong preference for code that is still pleasant to work in two years later.
The short version
I write the code, and I answer the email about it.
I have spent a decade building web and mobile products inside product teams — long enough to have shipped the thing that worked, and the thing that had to be rewritten eighteen months later. Both taught me more than any framework did.
MissionMind is how I do that work now. There is no agency around it: no account manager translating between you and the engineer, no junior quietly assigned to your project. If we work together, the person on the call is the person writing the code.
I work best with teams that already have something real — a product with users, a roadmap longer than the team, and enough momentum that engineering decisions actually matter.
- Based in
- Paris, France
- Working
- Remote-first across Europe, on-site in Paris
- Experience
- Ten years, senior and lead roles since 2020
- Languages
- French (native), English (professional)
- Education
- Master’s, EPITECH Paris — top of the 2015 bachelor class
- Availability
- Usually two to four weeks out
Code shipped for teams at
- Annuaire des Entreprises
- Aircall
- Dashlane
- WeSave
- Henri 8
- See every engagement
Timeline
How MissionMind got here.
2016 — 2018
Agency, then fintech
Sole developer at a healthcare agency, then portfolio analysis and real-estate investment platforms at WeSave. Learning to ship against real deadlines, with nobody to hide behind.
2018 — 2020
Dashlane and Aircall
Encryption performance on a browser extension, then the full rewrite of the Aircall web phone and an event-sourced SMS feature on AWS Lambda. Product engineering at a scale where mistakes are expensive.
2020 — 2024
Four years leading frontend at Qare
An Nx monorepo shared between web and React Native, a test strategy that caught real regressions, and the feature-flag approach still used for every new development. Also where I learned how much of leading is writing things down.
2024 — 2025
Freelance: Carrefour, leboncoin, Mistral AI
MissionMind opens. Leading a team on Carrefour’s data-visualisation platform, rebuilding leboncoin’s internal landing-page tooling, then a RAG application for a Mistral AI client.
2025 — now
The French state, and two products of my own
Lead engineer on Annuaire des Entreprises, which serves more than ten million visits a month, while building and shipping Lifterly and Digimad alone — same standards, no team to fall back on.
How I work
Three things I will not trade away.
None of this is a methodology. It is just what has consistently made engagements go well.
Senior, not supervised
You get one engineer who owns the outcome.
No account manager, no rotating juniors, no handover deck. The person on the call is the person writing the code.
Small pull requests
Progress you can review on a Tuesday.
Work arrives in changes small enough to read. That is what keeps quality high and surprises rare.
Leave it better
The codebase should outlive the engagement.
Tests, types and docs are part of the work, not the thing that gets cut when the deadline moves.
Next step
Tell me what you are building.
Your product, your timeline, and the part that is currently in the way. That is enough for a useful first reply — and you will get a straight answer, including when someone else is the better fit.