1977 – 1980:Medical Laboratory Technologist, Microbiology Laboratory, Soba University Hospital and Department of Microbiology, Faculty of Medicine, University of Khartoum.

19** – 1988: Chief Medical Laboratory Technologist, at same Laboratory and department running the hospital routine work as well preparing and demonstrating the practical sessions for the 4th . Class medical students Faculty of Medicine, University of Khartoum.

1981 – 1988: In-charge of the Central Sterilization & the cross-Infection Units, Soba University of Khartoum.

1986 – 1988: Part-time Medical Laboratory Technologist & demonstrator for the practical sessions of Microbiology, Board of Post-Graduate Medical Studies Faculty of Medicine, University of Khartoum.

1987 – 1988: Part-time Medical Laboratory Technologist & Demonstrator for the practical sessions of Microbiology for the medical students, Faculty of Medicine, University of Juba.

1988 – 1990: Chief Medical Laboratory Technologist, College of Medicine & Medical Sciences, King Faisal University, Kingdom of Saudi Arabia.

1996 – 1997: Establishment and in-charge of the Microbiology Laboratory The Academy Charity Hospital.