Reuben is currently the CEO – Life & Health Cluster, at First Mutual Holdings Limited, a position he was appointed to in October 2021. Previous roles within the First Mutual Group were, Managing Director (MD) of First Mutual Life (2005) and Founding MD of First Mutual Health (2009), which is currently the second largest private sector medical insurer in Zimbabwe. Other executive roles he has held in the past were CEO of Fidelity Life Zimbabwe (2017), Country CEO of Old Mutual Kenya (2013) and General Manager of Old Mutual Life Zimbabwe (2010).

He is an Actuary and has attended a number of international business schools which include INSEAD (Paris, France) and GIBS (SA).

His past directorships include Trust Finance Limited Zimbabwe, Old Mutual Finance Limited Zimbabwe, Faulu Microfinance Bank Limited Kenya, Fidelity Life Zimbabwe and Vanguard Life Malawi.