12/2019 - present: Associate Professor (Division of Mathathematics University of Tsukuba)
5/2012 - 11/2019: Assistant Professor (Division of Mathathematics University of Tsukuba)
4/2012 - 4/2012: GCOE Reserach Fellow
4/2009 - 3/2012: JSPS Research Fellow (PD) (RIMS, Kyoto University)
5/2008 - 3/2012: Part-time Lecturer (Kyoto University)
4/2008 - 3/2009: Part-time Researching Fellow (RIMS, Kyoto University)
4/2008 - 8/2008: Part-time Lecturer (IBU)
4/2008 - 8/2008: Part-time Researching Fellow(Department of Mathathematics Kyoto University)
4/2007 - 3/2008: COE Researching Fellow (Department of Mathathematics Osaka University)
6/2006 - 3/2007: JSPS Research Fellow (PD) (Department of Mathathematics Kyoto University)
4/2005 - 5/2006: JSPS Research Fellow (DC2) (Department of Mathathematics Kyoto University)
4/2003 - 3/2005: Teaching and research assistant (Department of Mathathematics Kyoto University)