◎ Professor, Department of Civil Engineering, Chung Hua University (2013~Present)
◎ Associate Professor, Department of Civil Engineering, Chung Hua University (1992~2013)
◎ Senior Geotechnical Engineer, Department of Technical Services, Public Service Electric and Gas Company, USA (1989 - 1992)
◎ Project Engineer and Project Manager, Dames and Moore Consultant, Inc., USA (1983 - 1989)
◎ Teaching Assistant, New Jersey Institute of Technolog, USA (1982 - 1983)
◎ Chief Engineer, Infrastructure Construction Section, SNEP Office, Ret-Ser Engineering Agency, Kingdom of Saudi Arabia (1978 - 1981)
◎ QA Engineer, Lungte Industrial Construction Project Office, Taiwan, ROC (1977 - 1978)
◎ Committee Member, Construction Permit Review for Development in Mountainous Area, Hsinchu City Government (2003~Present)
◎ Committee Member, Quality Assurance for Public Construction Projects, Hsinchu City Government, Hsinchu County Government, and Miaoli County Government (1999~Present)
◎ Reviewer, Government Procurement for Construction Projects, Public Construction Commission (2000~Present)
◎ Standing Director, Chinese Geosynthetics Association (2008~Present)
◎Associate Editor, Journal of Professional Engineers, TPCE (2016~Present)
◎ Consultant, City Traffic Safety Control Commission, Hsinchu City Government (2013~2014)
◎ Chief Editor, Journal of Professional Engineers, TPCE (2011~2013)
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