- 2012 – Present: Professor, Dept. of Clinical Nutrition and Dietetics, College of Health Sciences, University of Sharjah (UoS).
- 2010 – 2012: Visiting Academic, Dept. of Clinical Nutrition and Dietetics, College of Health Sciences, UoS.
- 1994 – 2010: Professor, Dept. of Nutrition and Food Technology, Jordan University of Science and Technology.
- 2001 - 2002: Visiting Researcher, Dept. of Food Science and Human Nutrition, Washington State University, USA.
- 1984 – 1987: Demonstrator, Dept. of Food Technology, Massey University, New Zealand.