Freelancer profile translated to English.
Back to original languageAbout Yoann
👉 Product Design & UX/UI - Creation of responsive and accessible Figma mockups for your SaaS project, mobile application, or other.
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⭐ Graduate of ENS, Paris-Dauphine, and ESD.
I am a Product Designer, Web Designer, and Engineer. Focused on SaaS / AI / Data.
🍹 Unique & balanced cocktail of Technical, Design & Web skills.
Creative and passionate about science and technology since childhood, I have since explored many interests. From drawing to creating a video game, to learning programming and becoming an AI research engineer, I am now interested in Product Design (UX/UI), website creation, and community management while retaining my programming skills (Python).
Far from being unrelated, these different interests and skills have made me a trueCreative Technologist - a versatile profile for your tech projects.
French
Native or bilingual
English
Fluent
Remote only
Primarily works remotely
Experience
- Mistral AIAI EngineerSOFTWARE PUBLISHINGDecember 2025 - Today (6 months)Paris, FranceAI Engineer specializing in Evaluations, Observability, and Prompt Engineering for Mistral AI's LeChat product.
- PysaeProduct DesignerSOFTWARE PUBLISHINGSeptember 2023 - December 2025 (2 years and 3 months)Bordeaux, FranceSaaS Product Design in the public transport sector, in Agile methodology
- Continuous user research, including field research with visits to transport networks across France.
- Delivery of responsive high-fidelity mockups for Desktop, Tablet, and Mobile devices.
- Specifications & monitoring of implementation with the Tech team.
- Creation & implementation of the Design System.
- Full-stack design & development (React) of an AI assistant for managing transport plans (GTFS).
- Management of innovative AI projects in the mobility domain.
- PreligensJunior Research EngineerSOFTWARE PUBLISHINGOctober 2022 - June 2023 (8 months)Paris, FranceAI R&D applied to satellite image analysis
- Detection of small objects in images of various resolutions.
- Multi-object tracking.
- Change detection on specific imagery (non-optical).
- Diffusion models for generating realistic satellite images.
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Education
- Master 2 (M2), User Experience (UX)ESD - Digital SchoolDesign Thinking, UI design, Design Systems, Recherche Utilisateur, Ergonomie, Workshops.
- Master 2 (M2), Artificial Intelligence and Data Science (IASD)Paris-Dauphine2022Deep Learning & Analyse d'images, Natural Language Processing (NLP), Projets Data Science.