- Academic position
- 1979 Instructor 4,Department of Surgery,Faculty of Medicine,Chiang Mai University, , Thailand
- 1983 Assistant Professor 6, Department of Surgery, Faculty of Medicine, Chiang Mai University, Thailand
- 1991-present Associate Professor 9, Department of Surgery, Faculty of Medicine, Chiang Mai University, Thailand
- Administrator position
- 2004- present Head Department of Surgery, Faculty of Medicine, Chiang Mai University, Thailand