Morgan McKinley
Microsoft 365 Engineer
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M365 & Proofpoint Systems Engineer
Location: Fully Remote (UK-based)
Contract Type: Fixed-Term Contract (FTC)
Rate: £375 per day PAYE
About the Role
We are seeking an immediate-impact M365 Systems Engineer to act as the technical authority and final escalation point for our enterprise collaboration and email security environment. As a senior engineer, you will hit the ground running to maintain operational stability and threat prevention across our infrastructure. Your core mandate is to ensure our Microsoft 365 tenant and Proofpoint environment are seamless, highly secure, and optimised.
Core Responsibilities
- System-Level Troubleshooting: Serve as the Tier 3/Tier 4 Subject Matter Expert (SME) resolving complex system failures, performance bottlenecks, and deep-level Exchange Online mail routing issues.
- M365 Administration & Optimisation: Own the health, configuration, and security of the Microsoft 365 ecosystem (Exchange Online, Teams, SharePoint, and OneDrive).
- Enterprise Email Security: Administer, tune, and optimise Proofpoint (TAP, TRAP, EFD, DLP) to mitigate phishing, malware, and impersonation threats.
- Mail Flow & DNS Management: Manage complex mail routing configurations, connectors, and email authentication protocols (SPF, DKIM, DMARC).
- Identity & Access Management: Support Entra ID (Azure AD), Conditional Access policies, PIM, and MFA frameworks.
- Automation: Write and maintain PowerShell scripts to automate administrative tasks, bulk changes, and security remediation.
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Key Qualifications
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- Experience: Proven track record in the UK market providing Tier 3+ system-level support and engineering within enterprise M365 environments.
- Proofpoint Mastery: Hands-on administrative expertise configuring Proofpoint gateways and a strong understanding of enterprise email hygiene.
- Autonomous Problem Solving: Ability to isolate and resolve complex, system-level issues independently without relying on vendor support.
- Core Tech Stack: Deep working knowledge of Exchange Online, Entra ID, PowerShell, and underlying network protocols (DNS, TCP/IP, SMTP).
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