Badrulhisyam began his career as an Investment Analyst at Permodalan Nasional Berhad (PNB), where he led the global equity research team in the International Fund Management Department. Badrulhisyam is currently the Group Chief Financial Officer of MMC Corporation Berhad. 

Holds a Bachelor of Engineering in Computing from Imperial College London, he is a Chartered Financial Analyst (CFA) charter holder, and a Chartered Global Management Accountant. He joined MMC on 11 July 2011, later becoming the Head of Group Strategy, and assumed his current position on 1 July 2020.

He oversees Group Finance, Tax, Insurance, Treasury, Group Human Resources & Administration, and the Information Systems Department.