M365 Security Engineer

Salary: £120,000 - 120,000 per year

Requirements

: Substantial hands-on experience in Microsoft 365 securityDeep understanding of identity protection, access control, threat detection and complianceExperience operating in complex or hybrid environmentsProficiency in configuring, troubleshooting and enhancing services such as Conditional Access, MFA, PIM, Defender, Purview and associated governance toolsFamiliarity with interpreting and responding to cloud security threats, managing incidents end to endExperience with SIEM tooling, ideally Microsoft SentinelStrong understanding of Zero Trust principles, modern authentication, and secure baseline configurationProactive, analytical, and organized with a clear communication styleAbility to manage competing priorities and produce strong documentation Responsibilities: Lead the shaping and securing of a sophisticated Microsoft 365 estateOversee identity protection, access governance, cloud threat defense, and complianceDiagnose complex issues and conduct deep investigationsRemediate threats and ensure policies, configurations, and controls are robust and resilientCollaborate closely with cyber security, infrastructure, networking, and service delivery teamsEnsure new services and configurations are delivered securely and aligned with best practicesCommunicate effectively with colleagues at all levels and document secure standardsBring structure to complex environments and strengthen the organizations security foundations Technologies: CloudMicrosoft 365SecurityOffice 365BackboneSupport More: We are a prestigious, nationally significant scientific research organization that drives advanced and ambitious projects in the UK. Our work at the forefront of innovation manages digital and data environments of exceptional scale and complexity. As a Microsoft 365 Security Engineer, you will join a highly collaborative environment that values expertise and forward-thinking solutions.

This role offers the opportunity to influence security strategy and contribute to work that delivers national and global impact. last updated 28 week of 2026