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Malt Strategy
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Malt Tech Trends 2026
Matthieu H.MH

Matthieu H.

Supermalter

Senior Product Design B2B · UX UI · SaaS · AI

€590/day
5 projects
Paris, FR
8-15 years
Product Design
Design System
UX/UI Design
Figma
User Experience Design

Average response time: 1 hour

Freelancer profile translated to English.
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About Matthieu

Product designer for 9 years, specializing in complex B2B interfaces: data centralization, multi-role workflows, Dashboards, AI agents.
I primarily work on SaaS products in demanding contexts (Adtech, Retail, Banking, e-commerce).

I handle the entire process, from discovery (user research, project scoping, ideation workshops, and user flow creation) to delivery (Figma mockups, coded prototypes, specifications, and validation of results with KPIs and user testing).
Software Publishing
Consulting and Audits
Digital Business Models
Banking and Financial Services
Large Retailers

  • English

    Native or bilingual

  • French

    Native or bilingual

Can work on-site
Paris (up to 50km)

Experience

  • Criteo Technology
    Malt logoOn Malt
    Senior UX Product Designer
    SOFTWARE PUBLISHING
    April 2025 - October 2025 (7 months)
    Paris, France
    Design of an AI agent to define audiences in natural language, within the innovation team
    • Framing of the agent experience and augmented targeting features
    • Close collaboration with R&D, content and design system team to lay the design foundations of the LLM ecosystem
    • Organization and animation of workshops and interviews with experts
    • Benchmarking of emerging uses in AI serving as a basis for the design of key components
    • Definition of success metrics and target paths (happy paths)

    Impact
    Criteo's onboarding on agentic AI topics, very positive internal feedback.
    Added 10 new components to the design system
    Figma User Experience Design User Interface Design Product Design Artificial Intelligence (AI)
  • relevanC
    Product Designer
    RETAIL (LARGE RETAILERS)
    March 2023 - March 2024 (1 year)
    Paris, France
    Redesign and design of two B2B SaaS products for large retailers
    Advertising space management tool
    Algorithm-assisted personalized promotion campaign programming tool

    Product design
    - User interviews
    - Facilitation of co-design workshops, rapid prototyping
    - Heuristic evaluation of features
    - Indirect user research, competitor benchmarking
    - Creation of user flows and iteration with CSMs
    - User testing with media traders
    - Content writing, business vocabulary audit, and harmonization of terms between product and sales teams

    Design system
    - Maintenance and enrichment of the design system
    - Component creation
    - UI Art Direction
    Design System User Research User Interview User Interface Design System Design
  • PrestaShop
    Product designer
    E-COMMERCE
    April 2021 - November 2022 (1 year and 7 months)
    Paris, France
    Creation of a new Design system for PrestaShop
    Redesign of the PrestaShop marketplace vendor dashboard
    Revision of the recurring payment process for Addons

    Design system
    - Design of the design system foundations
    - Development of the contribution process for designers
    - Component documentation
    - Development of guidelines and collaboration standards
    - Review of merge requests

    Product design
    - Implementation of discovery
    - Heuristic audit with Baymard
    - Mockup design
    - Tracking strategy
    - Support for developers
    Training
    - Writing a guide for Miro
    - Assisting designers on Figma
    Design System Discovery Figma
Check out Matthieu's experience

Recommendations

AC
Julie HernandezJH
Aurélie Comin and 1 other person have recommended Matthieu

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Education

  • Expert in digital communication engineering and management
    Hetic
    2017
    Activités : Élaboration de la stratégie de communication numérique Maîtrise d’ouvrage (projets internet et multimédia) Maîtrise d’œuvre Management Compétences attestées : 1. Élaboration de la stratégie commerciale et de communication numérique - Analyse stratégique - Écriture et présentation en français et en anglais - Techniques d'entretien et d'audit - Synthèse des axes de la stratégie - Technologies internet et multimédia 2. Maîtrise d’ouvrage des projets - Analyse organisationnelle - Écoute et traduction des besoins - Connaissance des métiers du e-business et de la communication numérique - Management de projets techniques 3. Maîtrise d’œuvre des projets - Réalisation internet et multimédia - Formation - Démarche qualité - Management des systèmes de communication numérique 4. Management des systèmes de communication numérique - Accompagnement du changement - Leadership - Vision globale des projets

Certifications

Skill set

Web Design
B2B
Workflow
HCI
Web Accessibility
Responsive Design
Miro
Content Square
Zeroheight
User Research
User Interview
System Design
Discovery

Categories