2009- present            Head, Department of Forest Management,

Faculty of Forestry, University of Khartoum, Sudan

2008-presentAssisstant Professor, Department of Forest Management,

Faculty of Forestry, University of Khartoum, Sudan

2004-2008                                  Assistant Professor, Department of Forestry, College of Natural Resources and Environmental Studies, University of Juba, Sudan.

2004-2008                 Head, Department of Forestry, College of Natural                                        Resources and Environmental Studies, University of Juba.

2001-2004                 Ph.D. Student, Department of Forest Management, Faculty                                     of Forestry, University of Khartoum, Sudan.

1992-2004                 Lecturer, Department of Forestry, College of Natural                                              Resources and Environmental Studies, University of Juba.

1990-1992                 M.Sc. Graduate Student, Department of Forestry,                                                    Wageningen Agricultural University, Wageningen, the                                            Netherlands

1988-1990                 Teaching Assistant, Department of Forestry, College of                                           Natural Resources and Environmental Studies, University of                                     Juba, Sudan.

1983-1988                 Assistant Conservator of Forests, Forest Adminstration,                                            Khartoum, Sudan