Simon Mullis

Simon Mullis is an accomplished security architect with extensive experience in cybersecurity and technology management. Currently serving as Principal Security Architect at SentinelOne since September 2025, Simon also holds a part-time advisory role on the Technology & Strategy Advisory Board at EmberOT. Previously, Simon was the founding Chief Technology Officer at Venari Security from May 2021 to September 2025, focusing on enhancing security and compliance in an encrypted world. Simon's career includes pivotal roles at Tanium as Director of Technical Account Management, Palo Alto Networks as Global Technical Lead for Global Systems Integrators, and FireEye as Global Technical Lead for Strategic Alliances. With a strong foundation in technical management from positions at Juniper Networks and a track record in network and systems development, Simon has demonstrated expertise in driving innovation and success within the cybersecurity industry. Simon holds a Bachelor of Science degree in Chemistry from the University of Sussex.