Astra Studio
Work · 02 / 03
CegidiOS and Android2022 – 2026

A mobile design system, from scratch.

The field app of an ATS, and a 50+ component system born from its real screens.

Client
Cegid
Role
Product designer, solo
Team
1 PM, 1 lead dev, 1 dev
Platform
iOS and Android
Period
Sept. 2022 – June 2026
Cegid mobile DS foundations: text color tokens, text styles and spacing tokens

Recruiting away from the desk.

Cegid wanted its recruiters to handle applications on the go or in store. The app didn’t exist, and I was hired to build it.

The desktop design system existed, but nothing in it was designed for mobile. I had to draw the screens and set up the system at the same time, as the only designer working with the engineering team.

Screens first, system second.

The obvious option was to adapt the desktop system, or to write a full mobile library before the first screen. I did the opposite: draw the first screens, spot the needs that kept coming back, and structure the system from there.

The cost: a long audit of every candidate component, then a cut to keep only those that recurred from screen to screen. The gain: a single naming scheme, from Figma to code.

Buttons named by intent, a token chain and the same name in Figma, iOS and Android
Buttons named by intent · one value, one name · one name in three tools

The AI summary, only on request.

The summary compares the candidate’s profile with the job posting, in an already dense profile screen. In the field, recruiters switched between reading directly and using the summary, so generation stayed optional. The feature was in beta when I left.

The four states of the AI summary in the candidate profile: closed, processing, summary, feedback
  1. ClosedThe profile stays readable as is.
  2. ProcessingA waiting state inside the card, without blocking the screen.
  3. SummaryKey criteria first, details second.
  4. FeedbackAn explicit AI label, feedback in one tap.
50+mobile components
100+iOS and Android screens
1naming scheme, from Figma to code
16handoff pages

Before leaving, a user manual.

On my own initiative, I wrote a sixteen-page handoff document: my rituals, the Figma conventions, the design system. It’s meant for the product teams and developers, so the system keeps living without me.

Ten of the sixteen pages of the Cegid design system handoff document
10 of the 16 pages of the handoff document
“With him, we created a new product team dedicated to mobile and laid the first building blocks of atomic research.”
Matthieu Cannizzaro · Product & Design at Cegid, Etienne’s direct manager · translated from French

What I took away.

A design system emerges from the field, from real constraints and feedback. This one was built to be used, not to look good in Figma.

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