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Grégoire MékerGM

Grégoire Méker

Lead Product Designer | Senior Product Designer

€780/day
8 projects
Berlin, DE
8-15 years

Average response time: 1 hour

About Grégoire

Hi,

I’m Grégoire Méker, Lead Product Designer specialized in UX design, UI design, and Design Systems for web and mobile products. With 10 years of experience across Product Management and Product Design, I help companies structure, scale, and ship high-quality digital products with clarity and efficiency.

I work at the intersection of Product Strategy, User Experience, and Interface Design, supporting startups and scale-ups in building robust, user-centered solutions. My expertise includes:

- UX research, user flows, wireframing and prototyping
- UI design for SaaS platforms and mobile apps
- Design System creation (from audit to scalable component libraries)
- Design Ops and lean product processes
- Cross-functional collaboration with Product Managers and Front-end Developers
- Figma expertise (components, tokens, documentation, handoff)

I have built and scaled Design Systems and product experiences for clients such as Veesion, L’Oréal Tech Accelerator, Gorgias, SumUp, Criteo, and Mozza. My approach focuses on creating scalable UI architectures, improving product consistency, and accelerating design-to-development workflows.

Beyond execution, I help Product teams implement healthy lean processes: prioritization frameworks, discovery rituals, design reviews, and documentation standards. The objective is always the same: reduce friction, align stakeholders, and deliver measurable business impact.

If you need support on:
- UX audit and product redesign
- Design System setup or refactoring
- Mobile app UX/UI
- SaaS platform optimization
- Design Ops structuring

Let’s discuss your product challenges and build a clear, scalable design foundation.
  • English

    Native or bilingual

  • Spanish

    Fluent

  • French

    Native or bilingual

Remote only
Primarily works remotely

Experience

  • Veesion
    Lead product designer
    RETAIL (LARGE RETAILERS)
    March 2025 - September 2025 (6 months)
    Mise en place d’un design system.
    Assainissement des bases UX UI en optant pour Material 3, pour compatibilité optimale avec Flutter.
    Accompagnement du premier designer vers des méthodes UX et UI pérennes.
    Amélioration continue de l’app en collaboration avec le CPO et le Lead product manager.
    Figma Design System User Experience Design User Interface Design Product design
  • L'Oréal Paris
    Lead UX UI Designer
    FASHION AND COSMETICS
    September 2023 - January 2025 (1 year and 4 months)
    Clichy, France
    • UX & UI revamp of an internal tool for Marketing Mix Models validation.
    • UX & UI V2 for BETiq: an internal predictive calculation tool for budget split per marketing channel.
    • Design system creation and maintenance.
    • Close collaboration with Front-end team to switch from Material UI to React library ui.shadcn.com
    Figma User Experience Design User Interface Design Product design UI/UX Design
  • Gorgias
    Senior Product Designer
    SOFTWARE PUBLISHING
    March 2023 - August 2023 (6 months)
    Paris, France
    Worked as a Senior Product Designer within Gorgias Product design team.
    I led the revamping of subscription plans selection and options upselling flow.
    Figma (Software) User Experience Design User Research User Experience (UX) UI/UX designer

Reviews

5,0

Out of 3 ratings

MathieuM

Mathieu

MUUUM

Reviewed on 02/05/2020

Collaboration très agréable ! De belles avancées sur la réalisation d'un MVP d'une application mobile :) Très bonne méthodologie, je recommande :)
C

Christophe

Ayo17

Reviewed on 07/05/2019

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Education

  • Master 2 - Marketing
    Toulouse Business School
    2015

Skill set

Categories