Salary: £50,000 - 55,000 per year Requirements: Proven experience designing and implementing secure cloud or infrastructure architectures Strong background in cyber risk assessment and enterprise risk management Familiarity with risk methodologies (e.g. ISO 31000, FAIR, OWASP risk rating) Solid understanding of security frameworks, including: - GovAssure - Cyber Assessment Framework (CAF) - ISO 27001 - Cyber Essentials / CE - NIST Experience supporting audits and driving remediation activities Hands-on experience securing platforms such as: - Microsoft Entra ID (Azure AD) - Microsoft 365 E5 - Azure IaaS/PaaS - Windows, Linux, Unix environments Knowledge of security tooling (SIEM, EDR/XDR, vulnerability management platforms) Experience with access control models (RBAC, ABAC) and logging standards Understanding of incident management, threat intelligence, CVEs, and CVSS scoring Familiarity with ITSM processes and change control Experience with secure software supply chain and CI/CD security Strong stakeholder engagement and communication skills Responsibilities: Conduct technical risk assessments across IT, OT, and cloud environments Provide secure design guidance for infrastructure, cloud, and application projects Maintain and update enterprise security risk registers Lead security assurance reviews aligned to frameworks such as GovAssure, CAF, and ISO 27001 Evaluate architectural risks associated with key technical changes Support vulnerability management and remediation planning Embed risk-aligned security controls across platforms and services Develop and maintain security standards, templates, and documentation Support internal and external audits, including compliance evidence gathering Contribute to Zero Trust architecture initiatives Assess third-party suppliers against defined security criteria Deliver knowledge-sharing sessions to technical teams Represent Cyber Security within design and architecture governance forums Technologies: Azure CI/CD Cloud IaaS Support ITSM Linux Microsoft 365 OWASP PaaS RBAC Security Unix Windows Office 365 MS Teams More: We are seeking an experienced Cyber Security Assurance Specialist to support a high-profile programme focused on advancing sustainable energy solutions located in Culham, Oxfordshire. This role involves working 2–3 days onsite per week and will continue until 18 December 2026. We offer a competitive rate of £55 per hour (Umbrella) with in-scope IR35 status. You will be instrumental in strengthening our cyber security posture, combining hands-on technical expertise with strategic advisory input across a complex, hybrid technology environment. last updated 17 week of 2026