This job posting is for a Unity3D Development Engineer based in Beijing or Guangzhou, China. The role involves designing and developing core client-side modules for a game, including but not limited to combat, city building, and large-world systems. Responsibilities encompass performance optimization (memory, frame rate, rendering), cross-device compatibility, and the creation of visual editing tools (e.g., animation editor, map editor). The successful candidate will collaborate closely with planning and art teams, ensuring technical implementation aligns with design requirements. The ideal candidate will have at least 3 years of Unity3D development experience, preferably with a released SLG game. Proficiency in C#, understanding of Unity's underlying architecture and UGUI framework, and strong architectural design skills are essential.