Provost, College of Health Sciences, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana, 2020 to date

Vice-Dean, Faculty of Pharmacy and Pharmaceutical Sciences,  Kwame Nkrumah University of Science and Technology, Kumasi, Ghana 2019 to 2020

Head, Quality Assurance and Planning Unit, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana, 2016 to 2020

Research Associate, Department of Pathology, University of California San Francisco, San Francisco, California, USA, 2013 - 2014

Adjunct Senior Lecturer, Department of Pharmaceutical Sciences, Central University College, Accra, Ghana, 2012-date

Senior Lecturer, Department of Pharmaceutics, Faculty of Pharmacy and Pharmaceutical Sciences, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana, 2011- date

Lecturer, Department of Pharmaceutics, Faculty of Pharmacy and Pharmaceutical Sciences, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana, 2003- 2010

Scientific Worker, Institute for Pharmaceutical Biology and Phytochemistry, Westfälische Wilhelms-Universität, Münster, Germany, 04/2008 - 10/2010

Teaching Assistant, Department of Pharmaceutics, Faculty of Pharmacy and Pharmaceutical Sciences, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana, 2000 - 2002

Superintendent Pharmacist, Dadamens Pharmacy, Kumasi, Ghana, 01/2001 - 12/2001

Associate Professor, Department of Pharmaceutics, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana, August 2016