Before joining ESSA, Caleb Annobil served as a Teaching Assistant at the Department of Health Information Management at the University of Cape Coast, where he made significant contributions to research projects within the field of digital health.

He also worked as a Graduate Executive at Vodafone Ghana, leading projects such as the 2023 Employee Volunteer Programme (EVP) edition.

Caleb is a graduate with a Bachelor's Degree in Health Information Management from the University of Cape Coast, and he holds a certification in Initiating and Planning Projects from the University of California, Irvine Institute.