Barry O'Brien

Barry O'Brien is an accomplished technology professional specializing in operational technology (OT) security, with extensive experience across various roles in the field. Currently serving as a Principal Architect OT at Armis since April 2022, Barry O'Brien previously held positions such as Solutions Architect at Armis and Security Consultant at Integrity360, where the focus was on network security architecture in the UK and Ireland. Prior experience includes roles as Senior Manager of OT Security at McKesson, overseeing security for OT and Industrial Automation and Control Systems (IACS) networks across multiple countries, and as an OEM Security Architect at McAfee and Intel Corporation, focusing on industrial control systems for critical infrastructure. Additional experience includes engineering roles at STEC Inc., EMC, and Whalley Computer Associates. Barry O'Brien holds a Higher National Diploma in Multimedia from Coláiste Stiofáin Naofa and a Higher Certificate in Information Technology from St. Johns College.