| Aug. 2009 -- | Associate Professor Department of Electrical Engineering National University of Kaohsiung (NUK) Kaohsiung, Taiwan, R.O.C. |
| Aug. 2009 -- | Associate Professor Dept of Computer Science and Information Engineering (joint appointment) National University of Kaohsiung (NUK) Kaohsiung, Taiwan, R.O.C. |
| Aug. 2006 -- Jul. 2009 | Assistant Professor Department of Electrical Engineering National University of Kaohsiung (NUK) Kaohsiung, Taiwan, R.O.C. |
| Aug. 2007 -- Jul. 2009 | Assistant Professor Dept of Computer Science and Information Engineering (joint appointment) National University of Kaohsiung (NUK) Kaohsiung, Taiwan, R.O.C. |
| Oct. 2005 - Jul. 2006 | Assistant Professor Department of Microelectronic Engineering National Kaohsiung Marine University (NKMU) Kaohsiung, Taiwan, R.O.C. |
| Feb. 2005 - Jul. 2006 | Adjunct Assistant Professor Department of Electrical Engineering National University of Kaohsiung (NUK) Kaohsiung, Taiwan, R.O.C. |
| Oct. 2003 - Oct. 2005 | Research Assistant Professor Department of Electronics Engineering National Chiao Tung University (NCTU) Hsinchu, Taiwan, R.O.C. |
| Feb. 2002 - Jul. 2005 | Adjunct Assistant Professor Department of Electrical Engineering Ming-Hsin University of Science and Technology (MUST) Hsinchu, Taiwan, R.O.C. |
| Oct. 2001 - Oct. 2003 | Postdoctoral Fellow Department of Electronics Engineering National Chiao Tung University |
| Aug. 1995 - Jul. 2001 | Research Assistant Department of Electronics Engineering National Chiao Tung University |
| Sep. 1995 - Jun. 1996 and Sep. 1999 - Jan. 2001 | Teaching Assistant Department of Electronics Engineering National Chiao Tung University |
| Jun. 1992 - Aug. 1992 and Jun. 1993 - Aug. 1993 | Instructor and Tutor Chien-Chih Cram School Kaohsiung, Taiwan, R.O.C. |