Microsoft M365 Security Consultant
Up to £575 per day (Inside IR35)
9 months Contract - Fully Remote
Overview:
We are working with a leading enterprise client to hire an experienced End User Computing & Server Security Engineer to support and enhance security across their desktop and server estate.
This role will focus on securing Windows environments using Microsoft Defender and ThreatLocker, alongside supporting core infrastructure and end-user computing platforms.
The consultant will work across security, infrastructure, and support teams to strengthen endpoint protection, improve application control, and ensure a secure, stable operating environment across the organisation.
Key Responsibilities
Deploy and manage Microsoft Defender for Endpoint across Windows 11 and Windows Server environments
Lead the implementation and rollout of ThreatLocker across server estate
Support application control, allowlisting, and policy enforcement across endpoints
Secure and support Windows Server 2022 and 2025 infrastructure
Manage Windows 11 environments, including application deployment and configuration
Support installation, packaging, and troubleshooting of end-user applications
Ensure endpoint security configurations align with organisational and industry best practices
Collaborate with infrastructure teams to maintain a secure, resilient environment
Support ongoing optimisation of endpoint security posture and tooling
Required Skills & Experience
Strong experience with Microsoft Defender for Endpoint (EUC and Servers)
Hands-on experience deploying and managing ThreatLocker (or similar application control tooling)
Solid background in Windows Server (2022/2025) administration and support
Experience supporting Windows 11 environments and application installation
Strong infrastructure background, including exposure to Microsoft 365 environments
Good understanding of endpoint security, hardening, and best practices
Ability to troubleshoot and resolve security and endpoint-related issues
Desirable Experience
Experience operating in enterprise or regulated environments
Knowledge of Intune, SCCM, or other endpoint management tools
Familiarity with security frameworks or compliance requirements
Microsoft Defender Consultant - 9 months Contract - Fully Remote • London, England, United Kingdom
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