Location MOD Main Building London. There is an expectation that a minimum of 60% of working time will be spent in the office. All work-related travel andsubsistence costs will be reimbursed except when travelling to your base location in line with departmental policy. About the job Job summary The Chief Information Security Officer (CISO) is a senior role within the Defence Nuclear Organisation (DNO), accountable for providing strategic leadership on cyber security matters. The role holds ownership of information security and cyber risk across DNO and provides strategic influence throughout the organisation, working across boundaries to ensure effective risk management and security practices. The position is critical for mainting a coherent enterprise view of information security risk and strengthening DNO''s overall security posture. The post-holder will operate in a challenging and evolving cyber threat environment, facing risks from hostile states, criminals, ransomware groups, and others. As DNO becomes increasingly digital and data-led, the expanding attack surface underscores the importance of strong cyber leadership to protect critical systems, information, and services. Job description Provide strategic leadership and accountability for cyber security across DNO, including policy framework, secure-by-design principles, and alignment with government and MOD requirements. Lead and develop a specialist cyber security team, managing resources, budget, capability while ..... full job details .....