Freelancer profile translated to English.
Back to original languageAbout Guillaume
I help companies transform their complex tools into simple, effective, and truly used products — by integrating AI at the core of the experience.
With 12 years of experience on critical products (Sanofi, Michelin, SEB), I design solutions tailored for demanding environments: business tools, B2B SaaS, complex systems.
🚀 My specialty
I design and build functional prototypes in React, directly integrating LLM logic.
👉 Result
- Rapid validation of AI concepts
- Reduced development cycles
- Lower product risk
⸻
🧠 Areas of expertise
Human-AI Interaction
Designing reliable and understandable AI interfaces: human-in-the-loop workflows, conversational UX, trust management (explainability).
Design Systems at Scale
Structuring robust design systems for complex, multi-team products (Michelin, SEB).
AI-Augmented UX Research
Using LLMs to accelerate user data analysis and product decision-making.
⸻
🎯 Service Examples
UX Performance Sprint (2 to 4 weeks)
Rapid improvement of your internal tools' efficiency and adoption.
AI Product Discovery Sprint (1 to 2 weeks)
Transforming an AI idea into a concrete, testable product concept.
AI Interface UX Audit (1 to 2 weeks)
Identifying UX, trust, and friction points related to AI.
AI UX Lead (support)
Structuring and integrating AI into your products over time.
⸻
🤝 Les Composants Agency
I also work with Audrey Dauzet at Les Composants, our UX Design & AI agency for major clients.
→ 👉 Available for high-stakes product missions (Lead / Staff Product Designer)
French
Native or bilingual
English
Fluent
Can work on-site
Lyon (up to 50km), Lyon (up to 100km), Paris (up to 50km), Marseille (up to 50km), Genève (up to 50km)
Experience
- SanofiCX Product Designer AIMEDICALJuly 2025 - June 2026 (11 months)Lyon, FranceDesigning AI-driven decision interfaces for the pharmaceutical industry.
- User-centered digital product design to optimize pharmaceutical production site productivity.
- User research (field observations, interviews) with production teams to identify pain points.
- Design of AI model-based decision interfaces in contexts of sensitive and regulated data.
- Collaboration with engineers and data experts to ensure intuitive and operationally viable solutions.
- Groupe SEB SASProduct designerSOFTWARE PUBLISHINGApril 2024 - August 2025 (1 year and 4 months)Écully, FranceLeading the industrialization of design through the implementation of Design Tokens (primitives and semantics), ensuring perfect consistency and technical scalability across all group business applications and embedded interfaces.
- Design of business applications, complex interfaces, and internal tools for web, mobile, and embedded systems.
- Reference expert on Design System: definition of foundations, creation and documentation of UI components.
- Management of technical integration (HTML, CSS, JavaScript, React, Angular) and cross-functional governance.
- Les ComposantsUI/UX DesignerDIGITAL AND ITJanuary 2013 - Today (13 years and 7 months)Lyon, FranceNearly 10 years of experience as a UI designer for major clientsMichelin, Masternaut, EDF, Aldes, Arté, Bollé, AlstomProjects carried out on all digital media (responsive web, native iOS or Android...)
- Scoping workshops (needs assessment, personas, experience map...)
- Co-design workshops (functional prioritization, sketching, 6to1, card sorting...)
- User journey improvement (user flow, information architecture...)
- Interface creation - ergonomics, usability, UI...
- Interactive prototype
- Qualitative and quantitative user testing
- Graphic charter creation (logos, moodboards, GUI...)
- Specific 3D illustrations
Reviews
Asmaa
Michelin - BVCM
Reviewed on 12/15/2021
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Education
- Bachelor's Degree - Graphic & Digital DesignAries - Brassart2005
- Foundation Year - Drawing PreparationÉcole de Condé Marseille2003
Certifications
- Design thinking: PrototypingLinkedin Learning2016