1. 1998 ~ 2001：Lecturer, National Taiwan University 2. 2001 ~ 2005：assistant professor, National Taiwan University 3. 2005 ~ 2009：Associate professor, National Taiwan University 4. 2009 ~：professor, National Taiwan University 5. 2005 Aug ~ 2007 July: Chief of Department of Surgery, National Taiwan University Hospital, YuLin Branch 6. 2013 – 2017: Chief of Cardiovascular Department, National Taiwan University Hospital. 7. 2016 Aug ~: Director, Cardiovascular Center, National Taiwan University Hospital. 8. 2015 – 2017: President, Taiwan Society of Thoracic and Cardiovascular Surgery. 9. 2002 ~ 2004 and 2011 ~ 2013: Secretary General, Taiwan Society of Thoracic and Cardiovascular Surgery 10. Asia Pacific ELSO Society, Organizing member 11. Chairman, Asian Pacific Cardiovascular and Thoracic Surgery, Annual Meeting, 2016, Taipei 12. Chair, Asia Pacific ELSO steering Committee: 2016, Chair: 2017 ~ 2021

1. Cardiovascular physiology 2. Mechanical support, extracorporeal circulation 3. Innovative procedure and invention 4. Stem cell therapy