Chair of the Department of Medical Microbiology & Immunology, University of Nairobi
Projects Coordinator, Amref International University (AMIU)
Chief Executive Officer of Action for Batwa Empowerment Group (ABEG)
Founder and Executive Director of Ogiek Peoples' Development Program (OPDP)
Global Technical Lead - Health, VSO
Managing Director, MSD South Africa & Sub-Saharan Africa