- 2017/04 - 現在 北海道大学 公共政策大学院 客員教授
- 2014/04 - 2017/03 北海道大学 公共政策大学院 特任教授
- 2012/09 - 2013/08 Ministry of Land, Infrastructure, Transport and Tourism
- 2010/08 - 2012/09 Ministry of Land, Infrastructure, Transport and Tourism
- 2008/08 - 2010/08 Ministry of Land, Infrastructure, Transport and Tourism
- 2006/07 - 2008/08 Ministry of Land, Infrastructure, Transport and Tourism
- 2004/07 - 2006/07 Ministry of Land, Infrastructure, Transport and Tourism
- 2002/08 - 2004/07 Ministry of Land, Infrastructure, Transport and Tourism
- 2001/07 - 2002/08 Ministry of Land, Infrastructure, Transport and Tourism
- 2001/01 - 2001/07 Ministry of Land, Infrastructure, Transport and Tourism
- 1999/07 - 2001/01 北海道開発庁 地政課 事業計画調整官
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