Arthur Sallé
Product Engineer · Fullstack TypeScript
AvailableI design and ship products end-to-end, from the first workshop to production. I spend most of my time in fullstack TypeScript (React, tRPC, Expo), building marketplaces, payment flows and AI features that real users rely on. Based in Angers, France, I work on-site in Angers, Nantes or Paris, or fully remote.
I work solo or in a team, and I care as much about the product as the code. I'm also part of the collective UndefinedHQ, where a designer, another developer and I ship products that are both well-crafted and business-driven.
Stack
Projects
Dropshot Coaching
Case study →AI video coaching for tennis players
WeTennix
Case study →Fantasy tennis game on web and mobile
Teamz Tennis
Case study →The marketplace connecting the tennis world
voilà eSIM
Case study →Visual overhaul of the creator dashboard
Peer2Park
Case study →P2P parking marketplace in Dubai
Vigie
Case study →Native macOS menu-bar app for dev ports
How I work
I keep a close eye on how our tooling evolves and use AI code generation as leverage: shipping faster, and investing the time saved where it matters most, in the architecture, the product decisions and the business stakes.
- 01 Discovery
Everything starts with workshops with the client. I dig into the business, build the domain vocabulary and prioritize what really matters.
- 02 Spec & decisions
I write a structured spec before any code, covering the scope and the documented product trade-offs, then break it down into Linear tickets. The product gets decided before it gets developed.
- 03 Ship
I move in short iterations all the way to production, with CI/CD and an early release. I'd rather have real feedback than frozen specs.
- 04 Iterate
Then I measure, listen to users and adjust. A shipped product is not a finished product.
Experiences
I design and ship web and mobile products end-to-end: scoping, spec, development, production. Depending on the mission, I start from scratch or take over an existing product, on my own or within an existing team.
A collective of two developers and a designer, where I design and ship client products: shared design work, cross code reviews, joint delivery.
Frontend developer within a team of several developers, on existing codebases. That's where I built my working habits: code reviews, team processes, continuous delivery.