Graham is the Head of Data for Legatum, and is tasked primarily with measuring the firm's impact across its various philanthropic and mission-based activities. He joined the organisation in 2011, relocating from London to serve in roles in both the IT and Corporate Communications teams.

Graham holds a Bachelor of Science with honours from Brunel University London, a Master of Science in Software Engineering from Westminster University, and a Master of Business Administration (MBA) from Warwick Business School in the UK.