-1984-1989: Veterinary Officer, Northern State, Sudan.

-1989-1995: Research Scientist, Central Veterinary Research Laboratories,    Animal Resources Research Corporation, Soba.

-1995-1997: Lecturer, Department of Microbiology, Faculty of Veterinary Medicine, University of Khartoum.

-1997-2000: Assistant Professor, Department of Microbiology, Faculty of Veterinary Medicine, University of Khartoum.

-2000-2005: Associate Professor, Department of Microbiology, Faculty of Veterinary Medicine, University of Khartoum.

– Secretary of  Microbiology Departmental board 1997-1999 and Faculty Research Board, Faculty of Veterinary Medicine,  University  of Khartoum, 1999 – 2001.

– Post doctoral fellow, Department of Immunology, Federal R esearch Center for Virus Diseases of Animals, Tuebingen, Germany, 2001-2003.

– May 2004: promoted to Full Professor

-Head, Department of Microbiology, Faculty of Veterinary Medicine, November 2006- March 2007.

-Director, Camel Research Center, Faculty of Veterinary Medicine, University of Khartoum, March 2007-