Freelancer profile translated to English.
Back to original languageAbout Guillaume
Lead UI Designer at ATECNA for 3 years, I design intuitive interfaces and design systems for major clients like Leroy Merlin, Auchan, Chronodrive, and Illicado. My role goes beyond simple graphic creation: I work closely with product and development teams to transform complex business needs into fluid and high-performing user experiences.
Certified Figma Trainer, I help designers and non-designers master the tool, both internally at ATECNA and directly with our clients. I firmly believe that skill transfer is essential to ensure project quality.
Beyond my design missions, I actively contribute to the agency's development: recruiting design talent, sales prospecting, and demonstrating our expertise to new clients. This business dimension allows me to have a global vision of the challenges.
With over 10 years of experience at Agence Dn'D, where I evolved from web integrator to Lead UI Designer, I have developed comprehensive expertise in the digital product lifecycle. This experience has allowed me to understand technical challenges and create designs that are not only beautiful but also realistic and maintainable.
Passionate about game design, I am currently developing Astronova, an online space strategy game inspired by the classics of the genre. This project allows me to explore UI/UX from a gaming perspective and experiment with new approaches.
I regularly share my discoveries and analyses of design tools on my blog beryldesign.fr, where I combine personal storytelling and professional expertise.
My approach? Combining methodological rigor, creativity, and pragmatism to create digital experiences that meet real user needs while serving business objectives.
Western Frisian
Native or bilingual
English
Conversational
Remote only
Primarily works remotely
Experience
- Astro NovaFounderSeptember 2025 - Today (9 months)Lille, France
Lead UI/UX Designer - Space Strategy Game
Conception and art direction of a browser-based strategy game inspired by OGame, with a modern and ethical approach to free-to-play. Design of game interfaces, creation of the design system, definition of user experience and engagement mechanics. Working in a small team (4 people) with an MVP approach and rapid iterations. - AtecnaLead UI DesignerJanuary 2023 - Today (3 years and 5 months)As Lead UI Designer at ATECNA, I design interfaces and design systems for our clients in managed services, including Illicado, Leroy Merlin, Auchan, and Chronodrive. I participate in all project phases, from user research to final mockups, in collaboration with product and development teams. I also conduct Figma training internally and with our clients to help teams improve their skills with this tool. Beyond my design responsibilities, I contribute to the agency's business development and the recruitment of design talent.
- Beryl DesignFounderJune 2022 - Today (4 years)Lille, France
Design Content Creation and Monitoring
Writing articles on digital design tools and practices. Analyzing and testing emerging tools (design systems, prototyping, AI-powered tools). Sharing expertise on Figma, UI/UX workflows, and design methodologies. Producing practical guides and experience reports for the French-speaking design community.
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Education
- Master - Digital Design ManagementICAN2016
- Professional Bachelor's Degree - Techniques and Activities of Image and SoundUniversité Paris Nord - Paris 132014Print Web Design Intégration Packaging