From 2004 to 2014, Oscar worked as the administrator at Bethany Kids, a medical ministry specializing in pediatric rehabilitative and corrective surgery, based in Kijabe Hospital. Before that, he was the co-founder and director of the Philemon Trust Prison Ministry from 2002 to 2004; an intern in the Worship and Missions Department at Nairobi Chapel; a marketing research assistant for East Africa Industries (now Unilever Kenya); and an assistant quantity surveyor for Costek Quantity Surveyors.
Oscar is a qualified building economist (Quantity Surveyor). Oscar received his bachelor’s in Building Economics and Management from the University of Nairobi and is finalizing his Master of Business Administration in Strategic Planning from Kenyatta University.
Oscar is married to Josephine Owingah Odhiambo, better known as Jolene.