Stanley has over 20 years of experience in finance with Diageo and Deloitte. His immediate former role before joining Safaricom was as the Finance & Strategy Director and a member of the Board at Guinness Nigeria PLC, a Diageo company. In total, he has 13 years of experience with Diageo in senior finance roles in different markets/businesses in Africa, Europe, and Asia.

Prior to joining Diageo, Stanley spent eight years in Deloitte in tax consultancy in Kenya and Ethiopia and has also worked at Barclays Bank Kenya as Head of Business Performance Analytics & Tax.

Stanley is a graduate of University of Nairobi and a qualified accountant.