Assistant Professor, University of Houston-Clear Lake, Environmental & Natural Sciences, School of Science & Computer Engineering, 2005 - Present
Adjunct Professor, University of Houston-Main Campus, 2007 - Present
Instructor, College of the Mainland, 2007 - Present
Instructor, Texas Engineering Extension Service, Texas A&M University, 2005 - Present
Expert Witness, 2001 - Present
Clinical Associate Professor, West Virginia University, Safety & Health Extension, 2005
Assistant Professor, West Virginia University, Safety & Health Extension, 2000 - 2005
Instructor, West Virginia University, Safety & Health Extension, 1996 - 2000
