Freelancer profile translated to English.
Back to original languageAbout Thomas
Product Designer | UX/UI · Design Systems · Complex Interfaces
Complex interfaces to design but need to align stakeholders and deliver quickly?
Are your components derived from code, your Figma lacks governance, and design consistency is lost as teams grow?
This is exactly where I come in.
Specializing in SaaS B2B and business tools,I support Design, Product, and Tech teams in designing complex interfaces and building design systems that hold up in production: governance, component library, design tokens, Design/Code synchronization, adoption.
What I do:
►Facilitate co-creation workshopswith stakeholders
►Design complex user journeys:wireframes, prototypes, high-fi mockups, dev handoff
►Audit existing systemsand produce actionable recommendations
►Build or strengthen a Design System:roadmap, Figma components, tokens, Figma/code parity (Storybook, MUI, Tailwind)
References:
BTP:Multi-tool DS from scratch: tokens, component library, React/MUI Design/Code sync.
Eurazeo:B2B/B2C investment platform -> 90% of users migrated in 3 weeks
FDJ:Illiko.fr game prototypes -> adoption +60%
SNCF:Internal tool UX audit -> 30 recommendations, adoption 0→1
MNGRS.AI:Early-stage SaaS, DS
Ubisoft, Marriott (UI Kit), Tribe Digital
Supermalter · 41 missions · 11 reviews· Recurring and long-term collaborations.
Available to chat. Quick response.
French
Native or bilingual
English
Fluent
Can work on-site
Paris (up to 50km), Lyon (up to 50km), Marseille (up to 50km), Bordeaux (up to 50km), Lille (up to 50km)
Experience
- Française des Jeux
On Malt
AI UX/UI DesignerENTERTAINMENT AND LEISUREMarch 2025 - June 2025 (3 months)Paris, FranceAI and UX/UI design of game prototypes for Illiko.fr's innovative web exclusives.Main tasks:- UX UI design, audit and user research, application of strict regulator rules- Design of interactive prototypes for FDJ's 300 beta testers- AI Art direction for game interfacesResults delivered:-> 4 prototypes delivered-> Adoption rate increased by 60% (Rating increased from 5/10 to 8/10 on average among beta testers) - SNCFProduct DesignerTRANSPORTATIONFebruary 2025 - March 2025 (1 month)Paris, FranceEvaluation of an internal cost simulation business tool atSNCFTelli: user feedback, improvement points, and recommendations to simplify usage and enhance ergonomics to increase tool adoption within cross-functional teams.Main tasks:- CompleteUX Auditof the internal tool- Collection and synthesis of user feedback- Ergonomic improvement recommendationsResults delivered:-> 30 UX recommendations provided with several priority levels (P0, P1, P2)-> Adoption 0 -> 1From a complex business tool used by one person to a tool used by cross-functional teams for cost simulations for commercial purposes.
- MNGRS.AIFreelance Product DesignerSOFTWARE PUBLISHINGJanuary 2025 - April 2026 (1 year and 3 months)Paris, FranceProduct Design for an early-stage SaaS product in the audiovisual/music industry. Structuring projects in a rapidly evolving context.Main tasks:- User flow, low-fi prototyping, and high-fi mockups- Designing an onboarding and paywall system from scratch- Building the foundations of the design system and contributing to its evolution, MCP implementation with Figma Make- Design handoff to development with usable deliverablesResults delivered:-> More readable user experience. Better product consistency, feature iteration based on user feedback.-> Transition from MVP to a product launched on the market, with the first 25 paying subscribers acquired within 2 weeks of release.-> Recommended by the COO for missions requiring quick structuring and clean delivery.
Reviews
Recommendations
TQ
VB
+3
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Education
- Master 2 Digital CreationUniversité du Québec en Abitibi-Témiscamingue2020
- Master 2 (M2) Digital Creation, Experience Design and Interface Design (UX/UI) trackInstitut Ingemedia2020
Certifications
- CSR - CD3 PRÉ (cert_bNyZ0-8qwH)C3D2024
- edX Verified Certificate for Introduction to Web Accessibility (W3C - WCAG)edX - ID: 008bf961c420474282e918e87114ff262024