| 2021 – Present |
Chief Director of Center for Environment Protection and Laboratory Safety, Chiao Tung campus, National Yang Ming Chiao Tung University |
| 2008 – Present |
Professor, Department of Biotechnology, National Yang Ming Chiao Tung University |
| 2009 – Present |
Co-appointed Research Fellow, Institute of Physics, Academia Sinica |
| 2019 – 2021 |
Chief Director of Center for Environment Protection and Laboratory Safety, National Chiao Tung University |
| 2016 – 2019 |
Chairman, Department of Biotechnology, National Chiao Tung University |
| 2014 – 2016 |
Associate Vice President for International Affairs, National Chiao Tung university |
| 2010 |
Visiting Professor, Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, Canada |
| 2008 |
Vice Chairman of User Executive Committee of National Synchrotron Radiation Research Center |
| 2008 – 2009 |
Vice Chairman, Department of Biological Science and Technology, National Chiao Tung University |
| 2005 – 2009 |
Associate Research Fellow, Institute of Physics, Academia Sinica |
| 2005 – 2008 |
Associate Professor, Department of Biotechnology, National Chiao Tung university |
| 2005 – 2007 |
Associate Research Fellow, National Nano Device laboratories |
| 2004 – 2005 |
Associate Professor, Department of Physics, National Dong Hwa University |
| 2000 – 2004 |
Assistant Professor, Department of Physics, National Dong Hwa University |
