Salary: £105,000 - 105,000 per year Requirements: Proven leadership in security architecture within a complex enterprise environment Experience in critical infrastructure, utilities or the public sector Deep, holistic knowledge of cyber / information security Strong understanding of secure design, threat modelling, cloud and on-prem architectures, identity platforms Demonstrated ability to influence senior stakeholders and lead teams Strong familiarity with frameworks such as NIST, ISO 27001, SABSA, TOGAF Broad experience across cyber security domains (e.g. IAM/IDAM) Relevant degree and certifications (CISSP, CISM, CCSP, SABSA, TOGAF) Responsibilities: Own, define and continuously evolve the Security Architecture Strategy and its supporting frameworks. Embed secure-by-design principles across Digital, ensuring security requirements are incorporated through delivery and into operations. Lead the development, governance and optimisation of security controls across all programs, ensuring they are effective, measurable and aligned to industry frameworks and regulatory expectations. Oversee the integration of threat modelling, risk assessment and secure design principles into Digital programmes, projects and service lifecycles. Act as a senior strategic advisor within the Extended Leadership Team, advocating for security informed decision making. Build strong relationships with Enterprise Architecture, Enterprise Security Architecture, Engineering, Delivery, Operations and business leaders. Provide architectural steer and security assurance into major transformation initiatives. Ensure technical standards align to and address Information Security and Cyber requirements, controls and strategy. Support the development and maintenance of security architecture patterns, standards and reference models. Support the evaluation and selection of security technologies, ensuring they integrate effectively into the wider architecture landscape. Oversee and enhance processes for risk-based architecture decision making. Drive the assessment of control effectiveness and lead architectural strategies to address control gaps and emerging threats. Partner closely with Information Security Governance, Cyber Operations, and Security Engineering teams. Lead, mentor and inspire the security architecture team, cultivating technical excellence and a collaborative culture. Technologies: Cloud IAM Support Security TOGAF Architect More: We are the UKs largest water and wastewater company, with more than 16 million customers relying on us every day to provide essential services. Our mission is to build a better future for all, helping our customers, communities, our people, and the planet to thrive. We offer a competitive salary of up to £105,000 per annum, flexible working options, generous annual leave increasing from 26 to 30 days with service, a car allowance, performance-related pay, a robust pension scheme, private medical health care, and various benefits supporting health and wellbeing. Based at our hybrid location of Clear Water Court Reading, we are committed to fostering a diverse and inclusive workplace where all individuals are supported throughout the recruitment process. last updated 7 week of 2026