1     Internship at Khartoum Teaching Hospital 1980-1981. Neurosurgery 3 months, Internal Medicine 3 months, Obstetrics and gynecology 3 months, and General surgery, 3 months.

2     Medical Officer, Children Emergency Hospital, Khartoum Sudan 1982-1983.

3     Teaching assistant, Department of Biochemistry, Faculty of Medicine, University of Khartoum-Sudan 1983-1984.

4     Teaching and Research Assistant, Department of Medical and Physiological   Chemistry, Faculty of Medicine, University of Lund, Sweden (1985-1991).

5     Assistant Professor, Department of Biochemistry, Faculty of Medicine, University of Khartoum Sept. 1991- Dec.1996.

6     Associate Professor of Medical Biochemistry, Department of Biochemistry, Faculty of Medicine, University of Khartoum since Dec. 1996.

7     Full Professor of Medical Biochemistry, Faculty of Medicine, University of Khartoum, since July 2004.

8     Head, Department of Biochemistry, Faculty of Medicine, University of Khartoum, Sudan from Jan. 1995 until now.

9     Director, Directorate of Scientific Research and Cultural Relations, University of Khartoum, September 2005- Mars 2007

10  Dean, Faculty of Medicine, University of Khartoum, Mars 2007