1975-1982:

Faculty of Medicine, National Yang-Ming University

1982-1984:

Institute of Microbiology and Immunology, National Yang-Ming University(NYMU)

1986-1990:

Department of Cancer Biology, Harvard School of Public Health, Boston, MA, USA

2010-2011

Dean, Office of Research and Development, National Yang-Ming University

2010-2011

Director, Main Research Center, National Yang-Ming University

2008-2010

Director, Program in International Health, National Yang-Ming University

2009-2010

Dean, Office of International Affairs , National Yang-Ming University

2007-2009

Director, Center for International Academic Cooperation, National Yang-Ming University

2009-2012

Distinguished Professor, National Yang-Ming University

2007-2012

Professor, Department of Microbiology and Immunology, National Yang-Ming University

2007-2012

Co-Hiring Professor, Institute of Microbiology and Immunology, National Yang-Ming University

2007-2012

Co-Hiring Professor, Institute of Clinical Medicine, National Yang-Ming University

2008-2010

Co-Hiring Professor, Institute of Brain Science, National Yang-Ming University

2002 Oct -2003 Feb

Visiting Scientist, HIV Drug Resistance Program, NCI, NIH, USA

1998-2007

Professor(2000-2005 Chairman), Institute of Public Health, National Yang-Ming University

1992-1994

Associate Research Member, Institute of Biomedical Sciences, Academia Sinica

1992-1998

Associate Professor(1994-1997 Chairman), Institute of Public Health, National Yang-Ming University

• Education and Culture Award, Significant Contribution to the Scientific Education for the Public, from the Ministry of Education, 1993.
• Research award, from the National Science Council, 1993, 1994, 1995, 1997, 1999 and 2000.
• Young Investigator Award, First Joint Annual Conference of the Society of Oncology, 1996.
• Scholarships from the National Science of Council of ROC for short-term training, 2003.
• Outstanding alumnus, Fu-Xin Primary school , 2004.
• Best Paper Award from the Urbani Foundation 2005 and 2007.
• Award to Special contribution to harm reduction program, 2007, Ministry of Health. （衛生署減害計畫特殊貢獻獎）
• Outstanding Research Award from National Science Council, 2008. （97年度國科會傑出研究獎）
• Outstanding alumnus (Academic achievement), National Yang-Ming University, 2009 （陽明大學第六屆學術類傑出校友獎）.
• The 8th National Innovation Award (國家新創獎) in the Academic Research Category by Institute for Biotechnology and Medicine Industry, 2011.
• Award of the “Science Tour-Health Research in ” from German Academic Exchange Service, 2011.