| April | 1979 | Joined the Company |
| April | 2002 | General Manager, River & Water Resources Div., Tokyo Main Office |
| April | 2006 | Assistant Managing Principal, Tokyo Main Office |
| April | 2009 | Deputy Managing Principal, Tokyo Main Office |
| March | 2010 | Executive Officer |
| April | 2011 | Managing Principal, Tohoku Office |
| March | 2013 | Director |
| March | 2015 | Managing Principal, Kyushu Office |
| March | 2016 | Managing Executive Officer |
| April | 2017 | Managing Principal, Tokyo Main Office |
| March | 2018 | Senior Managing Executive Officer |
| March | 2019 | Representative Director and President, CEO |
| May | 2023 | Chairman, Japan Civil engineering Consultants Association |
| March | 2024 | Representative Director, Chairman (present post) |