Senior Lecturer

Department of Crop and Soil Sciences, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana

Research Scholar/Research Associate IV

Department of Soil and Crop Sciences, Colorado State University, Fort Collins, USA

Graduate Research and Teaching Assistant

Seed Molecular Biology Lab & Biology and Microbiology Department, SDSU, Brookings, SD

Research Fellow

Genetic Resources Centre, International Institute of Tropical Agriculture, Ibadan, Nigeria