January 2024 to date, Full Professor of Mathematics, University of Limpopo, Polokwane, South Africa.
January 2024 to date, Extraordinary Professor of Mathematics, North-West University, Potchefstroom Campus, South Africa.
January 2021 to December 2023, Full Professor of Mathematics, North-West University, Potchefstroom Campus, South Africa.
August 2020-December 2020, Associate Professor, University of the Western Cape, South Africa.
September 2017-January 2020, Associate Professor, University of the Witwatersrand, South Africa.
November 2020-to date, Visiting Professor, University of Lubumbashi, D.R. Congo.
November 2016- to date, Visiting Professor, Université Nouveaux Horizons, D.R. Congo.
January 2016-August 2017, Associate Professor and Head of the Department of Mathematical Sciences, North-West University, Mafikeng Campus, South Africa.
January 2013-December 2015, Senior Lecturer, North-West University, Mafikeng Campus, South Africa.
July 2012—December 2012, Lecturer, Walter Sisulu University, South Africa.
January 2007—December 2007, Data Manager, Public Health School of the University of Kinshasa, D.R. Congo.
May 2005—Dec 2007, Junior Lecturer, University of Kinshasa, D.R. Congo.