Heidir is a Senior Vice President in the Investments Division of Khazanah Nasional Berhad and Team Lead of its Energy Transition Cluster. He oversees asset stewardship and value creation across key portfolio companies, including Tenaga Nasional Berhad and UEM Lestra Berhad. He also serves on the Board of UEM Lestra. He previously held roles at Deloitte, Petronas, KWAP, and LTAT, building experience in corporate finance, M&A, and infrastructure investing. He is a Chartered Accountant (ICAEW ACA) and holds a Master of Engineering (MEng) in Chemical Engineering from Imperial College London.