This is a senior-level UI motion designer role for a global, realistic 3A action game. Responsibilities include defining the dynamic visual style of the game interface, creating UI transition and display animation effects, independently producing UI motion effect demos, collaborating with the development team to implement UI motion effects in the game engine, and ensuring design quality and performance. The ideal candidate will have extensive experience in UI effects, a strong understanding of UE4 particle and UI material systems, and proficiency in After Effects. They should be creative, detail-oriented, and possess excellent communication skills.