Part-time Project Researcher position at Toyoda Laboratory, IIS, UTokyo. The researcher will work on R&D of Common Ground technologies, dynamic spatial representation using game engines, multi-user behavioral data processing, game AI, and interoperability specifications. Responsibilities include experiments, project management, and collaboration with industry or government projects. The position requires a Master’s degree or higher and relevant research experience. Work schedule is 2–3 days/week, 7 hours/day (negotiable). English is the working language, Japanese proficiency is optional. Contract runs from April 1, 2026, to March 31, 2027, with possible renewal.