Alemayehu is a pharmacist and pharmacoepidemiologist with expertise in pharmacovigilance and vaccine safety. He currently serves as a Senior Pharmacovigilance Technical Officer at the Africa Centres for Disease Control and Prevention (Africa CDC), where he supports continental and national efforts to strengthen systems for monitoring the safety of vaccines and medicines, including during outbreak and emergency settings.

His work focuses on the design and implementation of safety surveillance systems, including both passive and active approaches such as cohort event monitoring (CEM), sentinel site surveillance, and signal detection. He has contributed to the establishment and operationalization of pharmacovigilance frameworks across multiple African Union Member States, including the development of policies, guidelines, and standard operating procedures aligned with regulatory and public health priorities.
Alemayehu has been involved in large-scale initiatives aimed at enhancing vaccine safety monitoring capacity in Africa, including activities under the Africa CDC–Mastercard Foundation “Saving Lives and Livelihoods” program. His role includes providing technical support to national authorities, facilitating coordination between pharmacovigilance centers, immunization programs, and regulatory bodies, and supporting data-driven decision-making.

His areas of interest include vaccine safety in special populations, safety surveillance during public health emergencies, and the epidemiology of adverse drug reactions. He has contributed to scientific publications, technical reports, and training programs in pharmacovigilance, with a focus on strengthening sustainable systems in resource-limited settings.

Alemayehu holds a Bachelor of Pharmacy (BPharm) and a Master of Science (MSc) in Pharmacoepidemiology and Pharmacovigilance.