Senior UX/UI Designer

About Us COCONE EUROPE OÜ is the European subsidiary of Cocone Corporation, a Japanese company known for avatar-based social mobile experiences. We build consumer-facing mobile products focused on emotional connection, engagement, and long-term user relationships. About the Role We are looking for a Senior UI/UX Designer (UI & Design System-led) based in London (hybrid model) to take creative ownership of the visual experience of a live mobile product on Android and iOS with built-in gamification. This role is centered on a full visual redesign of the product and the creation of a scalable design system that defines how every screen, component, and interaction looks and feels. You will translate our target audience, brand, and emotional positioning into a cohesive, high-craft UI — and continue to refine user flows where they intersect with the visual layer. You will work closely with product managers, engineers, and artists to ensure design decisions are grounded in user nee