He is a Fellow of the West African College of Physicians and African Public Health Leaders Fellow of the Chatham House Royal Institute of International Affairs, UK. He has years of senior level experience in Child Health, Health System Management, Health System Strengthening, Health Diplomacy, Maternal and Child Health, and Health in Humanitarian Emergencies.  He is currently the Head of Public Health Institutes and Research at the Africa Centres for Disease Control and Prevention (Africa CDC), African Union, Addis Ababa, Ethiopia. He coordinates the establishment and strengthening of National Public Health Institutes across the 55 African Union Member States. He coordinates the Africa CDC Health Workforce Development portfolio.  He oversees the public health research agenda of the Africa CDC. Tajudeen heads the healthcare preparedness and countermeasures section of the Africa CDC COVID-19 response. He co-chairs the case management technical working group of the Africa Taskforce on COVID-19. He leads the Saving Lives and Livelihoods Programme (partnership to accelerate COVID-19 vaccination in Africa) of the African Union.