Reuben holds a Bachelor of Science Honours Degree in Applied Chemistry from National University of Science and Technology (NUST) and a Masters in Business Administration (MBA) degree from University of Zimbabwe (UZ). He also holds a Postgraduate Diploma in Marketing Management from Institute of Marketing Management (IMM). He joined Zimasco in 1999 as a Chemist Graduate Trainee after which he was promoted to Analytical Chemist on completion and then to Laboratory Manager in 2005. He held several Middle Management positions at the Zimasco Kwekwe Division, namely, Alloy Processing and Recovery Manager, Alloy Production Manager, Raw Materials Manager. In 2020, he was promoted to Sales and Marketing Manager, the position he held before being promoted General Manager Marketing in April 2024.