Fixed-term Project Researcher position at Toyoda Laboratory, IIS, UTokyo. The researcher will conduct R&D on Common Ground technologies, dynamic spatial representation with game engines, multi-user behavioral data processing, game AI, and interoperability specifications. Responsibilities include experimental demonstrations, project management, and dissemination through publications and conferences. Applicants must hold a Master’s degree or higher and demonstrate research experience in related areas. The position is full-time, English is the working language, Japanese proficiency is optional, and the contract runs from May 1, 2026, to March 31, 2027, with possible renewal.