Associate Professor,   Department of Pharmaceutics, FPPS, KNUST, Kumasi, Ghana (August 2014-Date)

Visiting Scholar,  University of Michigan, Ann Arbor, Michigan, United States of America (January – December, 2011)

Senior lecturer,  Department of Pharmaceutics, FPPS, KNUST, Kumasi, Ghana (August 2009-July 2014)

Lecturer, Department of Pharmaceutics, FPPS, KNUST, Kumasi, Ghana (October 2002-July 2009)

Lecturer,  Department of Dispensing Technology, Kumasi Polytechnic [Kumasi Technical University] Kumasi, Ghana (September, 1996 – September, 2002)

Superintendent Pharmacist & Production Manager, Archdiocesan Hospital Pharmacy, Production Unit, Kumasi, Ghana (October, 1995 – August, 1996)

Demonstrator, Department of Pharmacology, Faculty of Pharmacy and Pharmaceutical Sciences, College of Health Sciences, Kwame Nkrumah University of Science and Technology (KNUST), Kumasi, Ghana (January, 1994 – September, 1994)

Pharmacist Intern, Kwame Nkrumah University of Science and Technology, KNUST Hospital, Kumasi, Ghana (October, 1992 – December, 1993)

Teaching Assistant & National Service Person, Department of Pharmaceutical Chemistry, Faculty of Pharmacy and Pharmaceutical Sciences, College of Health Sciences, Kwame Nkrumah University of Science and Technology (KNUST), Kumasi, Ghana (October, 1992 – December, 1993)