I gave the team control of its firmware tests, from launch to the next morning’s results.
~50daily users100–150flash operations nightly
Software engineer · Product-minded builder
MaximeBarthomeuf
01 / Introduction
02 / Work
Four projects I designed and built.
From an engineering platform to a product website, each one carried through to production.
An AI running coach I built to plan and adjust my training, from Messenger.
Dailyreal use since July 20261,500+automated tests
An app that tells people when their water filter needs replacing.
50k+accounts created4 yearsin production
I redesigned the website of an Apple Watch running app, from its structure to its opening film.
Solodesign, code and film5 yearson the same site
Recommendation
BMW Group
I could give him a loosely defined problem and count on him to come back with something well thought through, usually faster than I expected. I would gladly have him back, and I recommend him warmly.
03 / Capabilities
From first question to working product.
I work best where architecture, interface and delivery need one coherent direction.
Shape the product
For ÖKO, I moved the frequent refill action to the iOS home screen so it takes one gesture.
Build the system
At BMW, I connected a browser interface, orchestration and physical benches without hiding the result from users.
Ship and operate
I maintained ÖKO on two stores for four years, from client request to released update.
Make AI reliable
For Redline, the model proposes and the code decides what gets saved, sent and prescribed.
04 / About
I learned design because working software is not enough.
I’m Maxime, a final-year software engineering student at CPE Lyon. An early scraper made a school PDF faster to read, but students still had to choose their group every time. That remaining friction is what pulled me from code toward product design.
I carried ÖKO from client conversations to store releases for four years. At BMW, I built the automation and interface around a physical test fleet used daily by engineering teams.
I like work that starts with a task that takes too long or too many steps and ends with something that feels obvious to use.
05 / Archive
Earlier work that still matters.
Projects that taught me to validate early and remove the friction that remains.
01 / Student product
Kholle / CPE Prepa
A weekly PDF became a scraper, a tiny website, then a mobile app built around each student.
Read the evolution02
Iron Dive
Identity study
A compact identity built from the shapes of a diving mask and regulator.
06 / Contact
Need one person to connect product and engineering?
Write to me about a mobile product, an internal platform or a difficult workflow that still needs a clear shape.