Freelancer profile translated to English.
Back to original languageAbout Arnaud
Looking for aProduct Builderwho can design and deliver your SaaS product, not just mockups?
Want aFigma Design Systemthat saves your design and development teams time?
You've come to the right place.
I am a Product Designer / Product Builder with over 14 years of experience, specializing in complex B2B SaaS interfaces and AI-augmented Design Systems.
I have supported software publishers and startups:Foncia, Elior, Semji, Stafiz, La Loupe Immo, State Startup
What I can concretely bring you:
A product supported end-to-end. As a Product Builder, I cover the entire chain: from business needs to the interface, from functional prototypes to code.
A Design System that saves the whole team time.I structure your Figma libraries (tokens, components, etc.) so your designers stop reinventing the wheel and your developers integrate without guessing. And I go further: I make these **Design Systems usable by AI**, to generate compliant screens.
I place great importance on transparency with my clients: you are kept informed of progress at every stage, and I respond to any request within 24 hours. You always know where your project stands.
I can assist you with:
• Scoping and defining your product needs (UX audit, journeys, friction points)
• Designing complex B2B SaaS interfaces
• Building complete Figma Design Systems: design tokens, components, variants, guidelines, documentation, and governance
• AI-augmented Design Systems (generating compliant screens via Claude / AI tools)
• Design ↔ code alignment: Figma to React / Tailwind synchronization, Code Connect
• Development handoff and Design Ops automation (states, specs, documentation)
Shall we discuss your project?
Describe your context or problem in a few lines. I will reply within 24 hours.
French
Native or bilingual
Can work on-site
Paris (up to 50km)
Experience
- SemjiLead Design System / AISOFTWARE PUBLISHINGMay 2026 - June 2026 (1 month)Paris, FranceAudit & DiagnosisAudit of the Figma Design System AI Readiness Score, production of a structured report with a prioritized remediation plan and tracking.AI Mockup Generation PipelineImplementation of a Claude × Figma workflow to generate high-fidelity screens compliant with the DS from text prompts or wireframes with compliance pre-flight, automatic fallback to native components, and post-generation auto-review.Structured DS Context (YAML/Markdown)Creation of a complete Design System index: components, variants, slots, recipes, patterns, and 9 foundation files (colors, typography, spacing, radius, icons, quality, charts, tables, context) consumed by AI skills.Design System → React ConnectionMapping Figma components to their React/shadcn equivalents via Code Connect, and generation of synchronized .tsx files from Figma screens (regenerates only modified screens).Custom MCP Server (FastMCP Cloud)Deployment of a hosted MCP server (GitHub mcp-semji) exposing the DS context to AI agents (foundations, components, reports, skills) with cancellable consolidation of learning.ai-powered workflow design
- LA LOUPE IMMOProduct designerREAL ESTATEMarch 2026 - April 2026 (1 month)Paris, FranceAudit & Optimization of the UX Journey | Tunnel Simplification: Reducing cognitive friction on contact or simulation forms.Information Hierarchy:Restructuring sections (Hero banner, reassurance, key benefits, testimonials) to naturally guide the eye towards action.Call-to-Action (CTA) Strategy:Strategic placement, impactful wording, and contrasting design to encourage clicks.
- StafizLead Design SystemSOFTWARE PUBLISHINGJanuary 2026 - February 2026 (1 month)Paris, FranceComplete redesign of the interface for a B2B affiliate SaaS, used by advertisers and publishers to manage their campaigns.The mission covered three areas:UX Audit:analysis of existing user journeys, mapping of friction points, prioritized recommendations to simplify complex business workflows.Design System (Figma UI Kit):building a complete Design System from scratch: design tokens (colors, typography, spacing, radius), reusable components with their variants and states, graphic guidelines, and usage rules. Implementation of documentation and Design System governance to ensure product-wide consistency and facilitate team scaling. The goal: an actionable Design System that avoids redesigning the same components for every screen.Mockups & Prototypes:design of responsive interfaces (desktop, tablet, mobile) entirely based on Design System components, testable and ready for development handoff.
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Education
- Création et Développement Numérique en LigneGobelins l’école de l’image