2025/08– present - Chairman, Department of Electrophysics, National Yang Ming Chiao Tung University, Hsinchu, Taiwan

2024/11 – 2027/11 - Adjunct Professor, Ton Duc Thang University, Ho Chi Minh City, Vietnam

2022/08 – 2023/07 - Visiting Scholar, Department of Physics, University of Washington, Seattle, Washington 98195, United States

2022/02 – 2024/07 - Jointly-Appointed Professor, Industry Academia Innovation School, National Yang Ming Chiao Tung University, Hsinchu, Taiwan

2021/08 – present - Joint Appointment Researcher, National Synchrotron Radiation Research Center (NSRRC), Hsinchu, Taiwan

2021/02 – present - Professor, Department of Electrophysics, National Yang Ming Chiao Tung University, Hsinchu, Taiwan

2021/02 – 2025/07 - Vice Chairman, Department of Electrophysics, National Yang Ming Chiao Tung University, Hsinchu, Taiwan

2021/02 – present - Jointly-Appointed Professor, Institute of Physics, National Yang Ming Chiao Tung University, Hsinchu, Taiwan

2019/08 - 2021/01 - Vice Chairman, Department of Electrophysics, National Chiao Tung University

2018/08 - 2020/07 - Chairman, Office of Taiwan Consortium of Emergent Crystalline Materials (TCECM) program, Ministry of Science and Technology (MOST), Taiwan

2016/08 - 2018/09 - Associate Vice President, Office of International Affairs, National Chiao Tung University

2015/01 - 2017/12 - Panelist, the Physics Research Promotion Center (PRPC) of the Ministry of Science and Technology (MOST), Taiwan

2013/08 - 2021/01 - Professor, Department of Electrophysics, National Chiao Tung University

2010/04 - 2014/12 - Distinguished Research Fellow, Industrial Technology Research Institute, Taiwan

2006/08 - 2013/07 - Assistant / Associate Professor, Department of Electrophysics, National Chiao Tung University

2003/11 - 2004/10 - Postdoctoral Researcher, Department of Electrophysics, National Chiao Tung University, Taiwan

2002/09 - 2003/06 - Visiting research at Humboldt University and Max-Born Institute in Berlin by sandwich program of NSC in Taiwan