- 2023/04 - 現在 SAKATA INX CORPORATION Data Science Advisor
- 2018/08 - 現在 Otsu City, Shiga Prefecture (Japan) Policy Coordination Department Data analysis advisor
- 2017/04 - 現在 Shiga University (National university, Japan), Faculty of Data Science, Department of Data Science Professor
- 2020/03 - 2023/03 SAKATA INX CORPORATION External Director (Independent Officer)
- 2015/12 - 2016/03 Shiga University (National university, Japan), Data Science Education and Research Promotion Office, Special Invited Professor
- 2007/04 - 2016/03 Oita University (National university, Japan), Faculty of Engineering, Department of Computer Science and Intelligent Systems, Associate Professor
- 2005/01 - 2007/03 Oita University (National university, Japan), Faculty of Engineering, Department of Computer Science and Intelligent Systems, Associate Professor
- 2000/12 - 2004/12 Radiation Effects Research Foundation, Department of Statistics, Research Scientist
- 1994/09 - 2000/11 Radiation Effects Research Foundation, Section of Statistical Analysis, Department of Statistics, Manager
- 1987/04 - 1994/08 Radiation Effects Research Foundation, Department of Statistics, Research Assistant