| Employment | Date | Status |
|---|
| School of Public Health, KNUST-Kumasi | 2019- 2020 | past |
| Professor, Epidemiology and Global Health, Department of Global and International Health, School of Public Health-KNUST | 2019 | current |
| Intermittent Acting Provost, College of Health Sciences | 2018 | current |
| Perelman International Scholar, Centre for Global GHealth, School of Medicine, University of Pennsylvania, USA | 2018 | current |
| Acting Dean, School of Public Health, KNUST, Kumasi | 2017- 2019 | past |
| Associate Professor, Epidemiology and Global Health, Department of Global and International Health, School of Public Health-KNUST | 2013- 2018 | past |
| Part-time Lecturer, Nurse Anaesthetists Training School, Kumasi | 2013- 2017 | past |
| Director, Kumasi Centre for Collaborative Research in Tropical Medicine | 2012- 2017 | past |
| Deputy Director, Kumasi Centre for Collaborative Research in Tropical Medicine | 2010- 2012 | past |
| Board Chairman, King's Medical Centre, Kumbungu, Tamale | 2010 | current |
| Senior Lecturer, Department of Community Health, KNUST | 2007- 2013 | past |
| Intermittent Ag. Head, Department of Community Health, KNUST | 2004- 2006 | past |
| Examinations Officer, School of Medical Sciences, KNUST | 2003- 2006 | past |
| Lecturer, Department of Community Health, KNUST | 2002- 2007 | past |
| Oversight Medical Officer Responsibilities, Juaben Government Hospital | 2004- 2005 | past |
| Senior Medical Officer in charge, Stadium Clinic, Amakom, Kumasi | 2002- 2004 | past |
| General Medical Consultant, Aninwah Medical Centre, Kumasi | 2000- 2002 | past |
| Locum Medical Officer, Asafo Agyei Hospital, Kumasi | 1998- 2005 | past |
| Medical Officer, Wenchi Methodist Hospital, Brong Ahafo | 1998- 2000 | past |
| House Officer, Komfo Anokye Teaching Hospital, Kumasi | 1996- 1997 | past |
| Kwame Nkrumah University of Science and Technology | Oct 2020 | current |
