9. Associate Professor: Faculty of Medical Laboratory Sciences, University of Khartoum, Sudan (January 2014- up to date).

8. Assistant Professor: Faculty of Medical Laboratory Sciences, University of Khartoum, Sudan (May 2013- December 2013).

7. Associate Professor: Faculty of Veterinary Science, University of Nyala, Sudan (April 2012- April 2013).

6. Assistant Professor: Faculty of Veterinary Science, University of Nyala, Sudan (July 2006-March 2012)

5. Postdoctoral researcher: College of Veterinary Medicine, Yangzhou University, China (July 2007-Aug 2009)

4. Research associate: College of Anim. Sci. and Tech., Yangzhou University, China (Sept 2004-June 2007)

3. Lecturer: Faculty of Veterinary Science, University of Nyala, Sudan (Nov 2002- Aug 2004)

2. Research assistant: Faculty of Animal Production, University of Khartoum (July 2000-Oct 2002)

1. Teaching assistant: Faculty of Veterinary Science, University of Nyala, Sudan (Oct 1998-May 2000)