2009- to date     Professor at the Department of Biol. & Environ. Sc. at Qatar University – College of Arts & Sciences. Doha Qatar

2012-2014        Head of the Dept. of Biol. & Environ. Sc. at Qatar University – College of Arts & Sciences.

2011- to date     Academic Promotion Committee of Qatar University (including 8 years as Chair of APC)

2011-2013        Program Coordinator of the Master Sc. in Environmental. Sc. And the PhD in Biological and Environmental Sc. at Qatar University – College of Arts & Sciences. Doha Qatar

2009- to date    Qualified Professor of France Universities “Section 64: Molecular Biology and Biochemistry”, France

2017- to date     Official member of the Committee of Professors and Researchers of the XXXIII Cycle of the Ph.D. School in Agricultural Sciences of the University of Sassari, Italy

1996- to date    Professor, Univ. of Sfax-Tunisia, Director of laboratory at the Centre of Biotechnology Sfax. Tunisia

1992-1996        Associate Professor: University of Sfax- Tunisia, Director of laboratory at the Centre of Biotechnology Sfax. Tunisia

1995                 European Union Marie Curie fellowship: Univ. of Gent Belgium

1987-1988 Assistant Professor at the Faculty of Sciences & Techniques, Rouen, France

1989 – 1991      Post-Doc in Ciba Geigy – Pharma Division- Basle, Switzerland

Jan – Mar 1989  Post-Doc in GBF- Biotechnology, Braunschweig University- Germany