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Defender Administrator
Job Posted: 3 hours ago
Salary: £ 370 - 370 / Day
Job Type: Contract
Location: Gloucester, Gloucestershire
Expire in: a month
Job Description
Job Title: Defender Administrator (Contract)
Location: Gloucester or Warrington (Hybrid on-site)
Rate: £370/Day Inside IR35
Clearance: Must hold or be eligible for Security Clearance (minimum 5 years UK residency)
About the Role
We are recruiting an experienced Defender Administrator to support a large-scale migration programme, transitioning Windows and Linux servers from legacy antivirus solutions (Symantec/McAfee) to Microsoft Defender (ATP). You will play a key role in designing and implementing migration approaches within a complex and sensitive environment.
Key Responsibilities
* Migrate Windows and Linux servers to Microsoft Defender (ATP).
* Validate existing antivirus exclusion policies across the estate.
* Implement MDE policies and create AAD device groups.
* Develop migration approaches suitable for complex and sensitive infrastructures.
* Perform network connectivity testing and ensure readiness for deployment.
* Create and distribute Defender installation packages.
* Lead discussions with the image management team regarding MDE images for auto-scaling.
* Remove legacy AV solutions from servers.
* Provide end-to-end support for Microsoft Defender.
Required Skills & Experience
* 4+ years’ experience onboarding Windows and Linux servers to Microsoft Defender.
* Strong experience migrating from Symantec and McAfee.
* Expertise in AV exclusion management.
* Solid knowledge of Microsoft Defender for Server, O365, Identity, and Microsoft 365 Defender.
* Understanding of EDR, TVM, ASR, AIR and threat remediation.
* Proficiency with Windows OS (Client & Server) and Linux (RHEL).
* Experience deploying ATP packages via GPO, SCCM or Intune.
* Strong investigative and analytical problem-solving skills.
* Ability to document policies, deployment approaches and processes.
* Excellent communication and stakeholder-management skills.
Additional Requirements
* Willingness to work shifts, out-of-hours, and participate in an on-call rota when required.
* Strong relationship-building skills with both onsite and offshore teams.
* Ability to learn quickly and adapt to evolving technical environments.
If you have the required technical expertise and enjoy working in secure, complex environments, we’d love to hear from youBefore You Apply
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