Salary: £91,250 - 104,000 per year Requirements: Hands-on experience onboarding Microsoft and Linux servers to Microsoft Defender Must have managed complex migration projects Experience with AV exclusion management Knowledge of Microsoft technologies such as Microsoft Defender for Server, O365, Identity, 365 Defender, and Microsoft Cloud App Security Good understanding of server Detection and Response (EDR), Threat & Vulnerability Management (TVM), Attack Surface Reduction (ASR), and Auto Investigation and Remediation (AIR) Experience with Symantec Server Protection (SEPM) Experience in McAfee/Windows Defender Antivirus policy, group, and task configuration In-depth knowledge of Windows operating systems (Client 7/8/10 and Server OS 2008/2012/2016) and Linux RHEL Strong documentation skills for deployment approach and MDE policy creation Investigative and analytical problem-solving skills across Windows infrastructure Experience coordinating and maintaining organizational security procedures and practices Able to remove legacy Antivirus solutions from servers Hands-on experience in deploying ATP package through GPO, SCCM, or Intune Good understanding of threat analysis, threat hunting, and remediating security issues on endpoints Hands-on experience in creation of policy, file exclusions, monitoring dashboard, reporting, etc. Ability to ensure high level of security controls are deployed on endpoints according to best practices Minimum of 4 years of relevant experience Must be willing to work out of hours as needed after supervisor approval Responsibilities: Migrate Windows and Linux servers from Legacy AV Solutions (Symantec, McAfee) to Microsoft Defender (ATP) Validate the current AV exclusion policy in the estate Implement MDE policies and create AAD device groups for policy deployment Develop a migration approach suited for a complex, nuclear-sensitive environment Conduct network connectivity testing between source and destination Create and distribute Defender installation files Lead discussions with the Image Management team regarding MDE images for auto-scaling environments Document the deployment approach and create MDE policy documentation Provide end-to-end support coverage for Microsoft Defender Remove legacy Antivirus solutions from servers Develop and monitor dashboards for reporting purposes Communicate regularly with internal and external stakeholders to ensure efficient project execution Technologies: Cloud Support Linux Network RHEL Security Windows Office 365 DevOps Microsoft 365 More: We are a leading technology solutions provider situated in Gloucester/Warrington, committed to enhancing organizational security through top-notch solutions. Our team is dedicated to innovative migration strategies and maintaining high security standards. We offer a collaborative and dynamic work environment, with opportunities for professional growth. As part of our team, you will be involved in impactful projects while enjoying a supportive company culture. This position requires in-person collaboration 2-3 days a week, and we are looking for a candidate with active SC clearance. last updated 6 week of 2026