Zisis Katmeridis is an accomplished professional with extensive experience in cloud services, security, and architecture. Currently serving as the Head of Cloud Services at the UK National Audit Office, Zisis oversees key areas including IAM, architecture, AIOps, SecOps, and FinOps. As a freelance Cloud and Security Consultant, Zisis provides expertise in cyber security, AI, FinOps, blockchain, transformation, and strategy. Previous roles include Head of Cloud and Security Assurance and Cloud Security Manager at Inmarsat, Blockchain Security Consultant at Conflux Network, and Senior Manager of Data and Security Architecture at University College London Hospitals NHS Foundation Trust.