◆Director General, Department of Engineering and Technologies, National Science and Technology Council. (2022/07-2024/07)
◆Director General, Department of Engineering and Technologies, Ministry of Science and Technology. (2021/02-2022/07)
◆Vice President for Academic Affairs, National Sun Yat-sen University (NSYSU), Taiwan. (2020/8-2021/2)
◆Dean, College of Engineering, National Sun Yat-sen University (NSYSU), Taiwan. (2017/08-2020/07)
◆President, Faculty Association, National Sun Yat-sen University (NSYSU), Taiwan.  (2016/10-2017/10)
◆Vice President for General Affairs, National Sun Yat-sen University (NSYSU), Taiwan. (2016/8-2017/7)
◆Director, Joint Research and Development Center of NSYSU and Brogent Technologies, Inc. (2015/08-2016/07)
◆Chairman, Department of Electrical Engineering, NSYSU. (2012/08-2015/07) 
◆Director, International Master's Program in Electric Power Engineering (IMPEP), NSYSU. (2012/08-2014/07)
◆Professor, Department of Electrical Engineering / Institute of Communications Engineering, National Sun Yat-sen University, Kaohsiung, Taiwan. (2010/08-present)
◆Division Head, Division of Engineering Technology Research & Promotion Center, National Sun Yat-sen University. (2008/10-2009/07)
◆Associate Professor, Department of Electrical Engineering / Institute of Communications Engineering, National Sun Yat-Sen University, Kaohsiung, Taiwan. (2007/08-2010/07)
◆Division Head, Promotion Division of Research & Development Office, National Sun Yat-sen University. (2005/08-2008/10)
◆Assistant Professor, Institute of Communications Engineering, National Sun Yat-Sen University, Kaohsiung, Taiwan. (2002/08-2007/07)
◆Manager & Engineer, Acer Mobile Networks Inc. (2000/10-2002/01)
◆Member of Technical Staff, Lucent Technologies, Whippany, NJ, USA. (1998/01-2000/10)