Simon has more than 15 years of experience developing software companies from the ground up. He co-founded and is CTO at Bromium, a computer software company that is re-defining cyber security through technological innovations. He is currently Advisor to various software companies including Vyatta, AppFog,, BlueStacks, and more.

Previously, Simon was CTO at Citrix Systems, where he focused on helping cloud service providers deliver enterprise-class, scalable, secure and cost effective cloud-based services. Prior to that he founded and was CTO at XenSource, a leading enterprise-grade virtual infrastructure solutions provider. Simon began his career as a Fellow and Lecturer in Computer Laboratory at the University of Cambridge.