professor, Dept. of Mechanical Engineering, Hong Kong University of Science and Technology, since July 2011
Associate Professor, Dept. of Mechanical Engineering, Hong Kong University of Science and Technology, July 2006 - June 2011
Assistant Professor, Dept. of Mechanical Engineering, Hong Kong University of Science and Technology, July 2001 - June 2006
Chief Engineer, Allvox Inc., Michigan, USA, 2001
Senior Software Specialist, Applicon Inc., Michigan, USA; May 1991-June 2001
Senior Engineer, Optimal CAE Inc., Michigan, USA; 1987-1990