1984 – 1987 Agricultural engineer (Yemen Arabic Republic)

1987 – 1989 M.Sc. student and par time teaching assistant (U of K)

• 1989 – 1990 Agricultural Manager (Yemen Arabic Republic)

• 1990 – 1993 Teaching assistant (staff), U of K.

• 1993 – 1997 Lecturer (U of K)

• 1997 – 2001 Ph.D. student (UPM), Malaysia

• 2001 – 2002 Assistant Professor, Department of Soil & Environment Sciences, (U of K)

• 2002 – 2007 Coordinator of Desert Cultivation and Desertification affected Soils

• 2004 – 2010 Associate Professor

• 2010- to date Professor

• 2007 – 2015 Director of Desertification and Desert Cultivation Studies Institute, U of K.

• 2015-To date Coordinator desert cultivation and desertification affected soils, Desertification and Desert Cultivation Studies Institute.

• 2017- To date Director of Unesco Chair for Desertification, University of Khartoum.