· Aramco Gulf Operations of Al-Khafji Joint Operations Hospital, Khafji, Saudi Arabia (Sep 2005-Oct 2005) : Rotations in Clinical Chemistry, Special Chemistry, Haematology, Microbiology, Parasitology, and Blood Bank Departements using manual and computerized systems.

·   The Armed Forces Hospital, Omdurman, Sudan (Feb 2008-Feb 2009): Performing of routine and special laboratory tests in Clinical Chemistry, Special Chemistry, Haematology, Microbiology, Parasitology, and Blood Bank Departements using manual and computerized systems.

· Al-Rahma Medical Center, Omdurman, Sudan (May 2008-Feb 2009): Performing of routine laboratory tests in Haematology, clinical chemistry, and parasitology.

· National Health Laboratory (Estak), Khartoum, Sudan (2009-2010): Rotations in Clinical Chemistry, Haematology, Microbiology, and Parasitology Departements.

·   Faculty of medical laboratory sciences (Khartoum University) (Oct. 2010-Now): teaching assistant.