| 2005-Present |
Karin Audit Company Limited |
Founder |
| 2003-Present |
Mahachai Hospital Public Company Limited |
Director and Audit Committee |
| 2020-Present |
TPP Healthcare International Company Limited |
Director and Audit Committee |
| 2015-2017 |
TPP Healthcare Accreditation Institute (Public Organization) |
Audit and Assessment Committee |
| 2004 |
Pipat and Associates Co.,Ltd. |
Partner |
| 1998-2004 |
Dharmniti Auditing Company Limited |
Director and Partner |
| 1998-1999 |
Mahanakorn University of Technology |
Lecturer |
| 1998-1999 |
Mahachai Hospital Public Company Limited |
Head of Internal audit department |
| 1987-1996 |
SGV-Na Thalang & Co.,Ltd. |
Lecturer |