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Day Studio designs experience systems for complex, real-time products.
Led by Jean-Sébastien Day, a UI/UX & Experience Systems Director with experience across AAA games, automotive concept programs, and advanced autonomy platforms, the studio bridges structure, behavior, and execution.
Projects move from concept to in-engine validation and production-ready refinement.
Day Studio works as a senior embedded partner, aligning creative direction with real technical implementation.
What We Do
Day Studio builds structured experience systems for real-time products.
We focus on:
• Experience architecture
• Interaction & flow design
• In-engine prototyping (Unreal / real-time)
• Interface system refinement
• Visual & motion direction
From concept to playable validation to vertical slice maturity.
Engagement
Day Studio operates in two modes:
Embedded Leadership
Joining teams as a senior experience architect or design lead.
External Partnership
Delivering focused architecture, prototypes, and production-aligned refinement for defined milestones.










