Graham Mainstone

Graham Mainstone is a technology leader with extensive experience in IT and telecommunications, currently serving as CTO at BT since May 2009. In this role, Graham focuses on client strategy and innovation while streamlining operations. Previous positions include Architecture and Strategy roles at BT, managing global architecture to enhance design consistency and performance, and serving as Global Network Operations Manager at ACS, where responsibilities included global WAN management and the design of a Global Data Centre. Additionally, Graham has held consultancy positions at Pipex and Fullduplex, where expertise in network security and infrastructure was developed through various project implementations across Europe and Australia. Graham's notable achievements include being a finalist for SC Magazine's 2012 Best Security Project.