Joined the Ministry of International Trade and Industry (currently the Ministry of Economy, Trade and Industry ) in 1987. After working for the Ministry of Foreign Affairs and the Embassy of Japan in Malaysia from 1994 to 1997, he worked at the Office for New Business , the Distribution Industry Department, the Cabinet Office, etc., from 1997 to 2003, promoting the establishment of systems such as PFI, special zones for structural reform, and market testing, as well as regulatory reforms in areas such as healthcare, education, and agriculture. As Director of the Environmental Economy Office from 2006 to 2009, he led the establishment and implementation of the “Voluntary Action Plan” and “Domestic Credits and Emissions Trading” systems to achieve the 6% target of the Kyoto Protocol . As Director of the Technology Promotion Division from 2011 to 2013, he expanded the R&D tax credit. As a Deputy Director General in the Cabinet Secretariat and Cabinet Office from 2013 to 2017, he was in charge of planning, proposing and implementing the overall system of “National Strategic Special Zones.” In 2019, he retired from the Ministry of Economy, Trade and Industry (as Deputy Director-General of the Minister's Secretariat).
Joined Frontier Management Inc. as an Advisor in February 2020. In the same month of the same year, he was appointed as a policy and external affairs advisor for Rakuten, Inc. (currently Rakuten Group, Inc.), vice chairman of the Outlook Foundation , director of SRA Holdings, Inc. in 2021, and policy advisor for Seven & i Holdings Co., Ltd. in 2022 (all of which he is still currently holding). In addition, he is active as a policy advisor for local governments