Associate Dean, Graduate Programs and Computing Facilities (September 2008 - Present)

Professor, Industrial Engineering, University of Houston (January 2008 - Present)

Director, Engineering Computing, University of South Florida (1998-2007)

Interim Associate Dean (Academics), College of Engineering, USF (1994-95)

Director, Graduate Programs, Industrial & Management Systems Engineering, USF (1986-89)

Director, Undergraduate Programs, Industrial & management Systems Engineering, USF (1983-86 and 1990-92)

Professor, Industrial and Management Systems Engineering, University of South Florida (1993-2008), Associate Professor (1987-1993), Assistant Professor (1983-1987)

Senior Lecturer, Operations & Systems Management, Faculty of Business Administration, Chinese University of Hong Kong (1989-1990)

Visiting Asst. Professor of Industrial Engineering, Purdue University (1981-83)