- 2009/01 - 2011/07 , 琉球大学 亜熱帯島嶼科学超域研究推進機構 特命准教授
- 2009/01 - 2011/07 , University of the Ryukyus, Transdisciplinary Research Organization for Subtropics and Island Studies, Associate Professor
- 2011/07 - - , 琉球大学農学部亜熱帯フィールド科学教育研究センター 准教授
- 2011/07 - - , University of the Ryukyus, Faculty of Agriculture, Subtropical Field Science Center, Associate Professor
- 2009/10 - - , 鹿児島大学大学院連合農学研究科 主指導員
- 2009/10 - - , The United Graduate School of Agricultural Sciences, Kagoshima University, Major Advisory Professor for Doctoral Program
- 2008/10 - 2009/09 , 鹿児島大学大学院連合農学研究科 副指導員
- 2008/10 - 2009/09 , The United Graduate School of Agricultural Sciences, Kagoshima University, Vice AdvisoryProfessor for Doctoral Program
- 2007/04 - 2008/12 , 琉球大学農学部 准教授
- 2007/04 - 2008/12 , University of the Ryukyus, Faculty of Agriculture, Associate Professor
- 2006/11 - 2007/03 , 琉球大学農学部 助教授
- 2006/11 - 2007/03 , University of the Ryukyus, Faculty of Agriculture, Associate Professor
- 1999/04 - 2006/10 , 万田発酵株式会社 (主任研究員, 琉大で所属)
- 1999/04 - 2006/10 , Manda Fermentation Co. Ltd., Chief Researcher (worked at the University of the Ryukyus)