Osim

Letting any recruiter create a professional work sample with AI, to assess real skills rather than a résumé.

Client
Apec
Role
Product Designer, sole designer
Timeline
3 months
Deliverables
Tool and landing page
Screens from Osim
The challenge

Make generative AI simple enough for a busy recruiter, and reliable enough to trust it with an interview.

My approach

A guided assistant where the AI suggests and the recruiter validates at every key step.

The outcome

A complete work sample in about 10 minutes instead of several weeks. Live on apec.fr since November 2025.

~10 minfor a complete work sample
4guided steps
2exported documents, candidate and recruiter
0training needed to use it
Context

A résumé shows what you claim, not what you can do.

Apec, France's reference for executive employment since 1966, supported 229,000 people and more than 26,000 companies in 2025. Through its “Reinventing recruitment” tender, it was looking for a more reliable way to assess what executives can actually do. Matrice was selected to lead the project.

01

A résumé measures confidence, not skill

There is a fundamental gap between the job as written and the job as actually done.

02

A proven method that doesn't scale

France Travail's simulation-based hiring method has proven itself since 1995, but building a single exercise takes weeks.

03

No tool for executives

Apec advisors support more than 230,000 executives, with no way to create work samples at that volume.

Users

Two profiles, one shared constraint: time.

Profile 1

In-house recruiter

Manager or SME owner. Short on time, unsure how to formalize a skill, wary of AI.

Profile 2

Apec recruitment advisor

Supports executives and companies. Wants to go beyond the résumé, but has no tool to do it at scale.

In their words
“I spend hours helping executives prepare their pitch, but in the end the recruiter decides on a one-page document.”
Recruitment advisor, Apec
“I don't need someone with the right keywords on their résumé. I need someone who can do the job from day one.”
SME recruiter
“You spend twenty years building experience, and it all comes down to a résumé that does or doesn't get through a filter.”
Executive candidate
What research revealed

The market has flipped

Far more candidates than openings: companies are buried in résumés, with no reliable way to spot who can really do the work.

Résumés don't just mismeasure: they exclude

Background, school, name: everything is visible. Actual skills stay invisible.

Advisors want to go further

They understand the problem better than anyone, but without a tool they can't do it for 230,000 candidates a year.

Journey

From job description to documents, in 4 steps.

Recruiter
Drops in a job description or describes the need.
AI
Extracts the context of the role.
Design choice
A drop zone and free text input, with suggestions to get started.
Job description import screen
Designing for AI

The AI suggests, the recruiter decides.

What if generative AI could build a work sample from a job description, in minutes rather than weeks?

01

Defining the AI's behavior

The system prompt, designed as a design deliverable.

Role
Co-creator of work samples, guiding the advisor step by step.
Tone
Clear, structured, non-technical: written for recruiters, not engineers.
Constraints
Stay faithful to the job description, never invent a skill, deliver a result usable as is.
Format
A structured deliverable per step: skills, scenario, assessment grid, candidate guide.
02

Keeping the recruiter in control

Three principles applied to every screen.

Stay in control

Nothing is generated before the recruiter has validated the skills.

Make the process readable

The current step and remaining deliverables are always visible.

Plan for failure

Warnings and errors are designed screens, always with a way out.

03

Designing every state

The same Osim message, in normal, warning and error states.

Pick a state

In this first step, we present the five key skills identified in the job description or job offer you provided. If you're happy with this list, you can move on to the next step. Otherwise, you can “interact” with Osim and tell it which skills to target, keep, remove or add.

InteractContinue to the next step
The tool's real messages, recreated and translated.
Decisions

The trade-offs that matter.

4 design decisions, and what settled them

For each decision: the chosen solution, the alternative ruled out, and the reason.

Chosen

A guided conversational assistant

Ruled outA form and a “Generate” button.
WhyStep-by-step guidance reassures a recruiter discovering AI.
Chosen

Validate before generating

Ruled outGenerate everything, then fix it.
WhyCorrecting upstream avoids regenerating and builds trust.
Chosen

Two separate exports

Ruled outA single document.
WhyThe brief for the candidate, the grid and answers for the recruiter.
Chosen

GPT-5.4 as the engine

Ruled outClaude, Gemini or Mistral.
WhyThe best balance of speed, answer quality and ease of use for the team.
Screens

The tool and its landing page.

0:00
From the landing page to the exported kit: job description import, the five steps, generation and the final documents.
Osim tool screens
The landing page, the assistant, help and warnings: the key screens of the journey.
Results

What changes for recruiters.

~10 minper work sample, versus several weeks before
$0.10cost per generated work sample
230k+executives supported by Apec, now within reach
BeforeWith Osim
Creating a work sampleSeveral weeksAbout 10 minutes
Who can do itSpecialists trained in the methodAny advisor, no training
For executivesDidn't existFirst dedicated simulation tool

Live on apec.fr since November 2025.

“Three candidates, all excellent in interviews. The work sample made the difference: we saw how each one listened, handled objections and held up against a difficult client. For the first time, we didn't pick the best speech, but the best performance.”
SME recruiter
Learnings

What I take away.

My first AI product

Designing how an AI system fits into a product, not just using AI to design, opened a new direction for me.

The prompt is a design deliverable

On an AI product, you don't only design screens, you design behavior. Writing the system prompt was a design decision in its own right.

Shipping under pressure

A name change and a full redesign mid-project taught me to prioritize fast and cut what doesn't matter.