- 1992-1996 Head of inpatient department, Head of Academic department Khonkaen Neuropsychiatric Hospital, Khonkaem, Thailand
- 1996-1998 Adolescent unit, Neuropsychiatric unit Department of psychiatry, Faculty of medicine Khonkaen University
- 1998-present Assistant Professor of Psychiatry, Department of Psychiatry , Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand