Seiji is a senior stewardship Officer at Sumitomo Mitsui Trust Asset Management with strong global experience based in Tokyo, NYC, London, Luxemburg as a global equities portfolio manager. He has built ESG capabilities at Sumitomo Mitsui Trust Bank, and now at its subsidiary AUM of over USD600 billion after the reorganization in October 2018. Currently, Seiji is responsible for stewardship oversight of global institutional investment assets such as public funds, private Pension funds.

He is a part-time lecturer at graduate school of Tokyo University and a visiting fellow at Reading University, Henley Business school.