He is the Head, Research and Programs & Obstetrician and Gynecologist, Kenyatta National Hospital (KNH). Honorary Lecturer – Department of Obstetrics and Gynecology, Centre for HIV Prevention and Research and Institute of Tropical & Infectious Diseases, University of Nairobi. He has worked as a Site Principal Investigator for the study “Mobile WACh NEO: Mobile Solutions for Neonatal Health and Maternal Support” and a Co-Investigator, Health-Professional Education Partnership Initiative.