Microsoft Defender Administration - Utilities

Hamilton Barnes Associates Limited; West Midlands; On-site; GBP 60,000 - 80,000; Full time

Job summary

A leading IT services organization in the UK is seeking an experienced Microsoft Defender Administrator for a contract role. This position involves leading the migration to Microsoft Defender for Endpoint, configuring security policies, and collaborating with teams to enhance endpoint security. Candidates should have proven expertise in Microsoft security technologies and a strong background in Legacy AV solutions. The role offers up to £450 per day inside IR35.

Qualifications

• Proven expertise in Microsoft security technologies with hands-on experience in managing Windows 10 devices.
• Strong background in Legacy AV solutions, planning, and executing migrations.
• Deep knowledge of endpoint security operations and incident investigation.

Responsibilities

• Lead endpoint migration from Legacy AV to Microsoft Defender.
• Configure and administer Defender policies, dashboards, and reporting.
• Monitor, investigate, and remediate high-priority security threats.
• Collaborate with teams to provide end-to-end Defender support.

Skills

Microsoft security technologies

Microsoft Defender for Endpoint

Collaboration skills

Problem-solving mindset

Experience with Legacy AV

Job description

Are you an experienced Microsoft Defender Administrator looking for your next contract role?

Join one of the world's leading IT services, consulting, and business solutions organization. Founded in 1968, the company consistently ranks among the top global IT service providers. With a presence in over 50 countries, the company has built a reputation for delivering high-quality technology services across industries including banking, healthcare, telecommunications, and retail.

The leading consultancy firm has partnered with a major force in the energy sector, recognized for its leadership in low-carbon solutions and sustainable innovation. With a commitment to reliability, efficiency, and environmental responsibility, the organization provides essential services that power communities, accelerate renewable technologies, and shape a cleaner energy future.

Secure your next challenge and make an impact where it matters most. Apply today!

Key Responsibilities

• Lead endpoint migration from Symantec/McAfee to Microsoft Defender for Endpoint (ATP), including deployment via GPO, SCCM, or Intune and removal of Legacy AV solutions.
• Configure and administer Defender policies (AV, EDR, ASR, AIR), dashboards, exclusions, and reporting to ensure secure and compliant endpoint protection.
• Monitor, investigate, and remediate threats using Defender EDR, Threat & Vulnerability Management, and automated remediation to resolve high-priority security issues.
• Collaborate with cross-functional teams and stakeholders to provide end-to-end Defender support, documentation, and continuous security improvement.

Requirements

• SC Clearance (preferred)
• Proven expertise in Microsoft security technologies, including Defender for Endpoint, O365, Identity, and Cloud App Security, with hands-on experience onboarding and managing Windows 10 devices.
• Strong background in Legacy AV solutions (Symantec, McAfee) with the ability to plan and execute smooth migrations to Microsoft Defender.
• Deep knowledge of endpoint security operations, including EDR, Threat & Vulnerability Management, attack surface reduction, and incident investigation/remediation.
• Collaborative and problem-solving mindset, with the ability to work across infrastructure, application, and client teams while providing clear communication and support.

Salary

• Up to £450 per day (Inside IR35)