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Microsoft 365 Security Escalation Engineer

Job Description - Microsoft 365 Security Escalation Engineer

SUMMARY

We’re seeking a Senior Microsoft 365 engineer to operate behind the scenes, focusing on security, complex escalations, and assigned project work. This is not a frontline, not client-facing, and not a leadership role. It’s designed for someone who prefers deep technical work over meetings and noise. You’ll work as a back-of-house escalation specialist, reporting to the Operations Manager. Your time will be split approximately:
  • 60% Microsoft 365 security & escalation BAU
  • 40% planned project delivery (e.g. SharePoint and security uplift work)
There is no on-call, no after-hours, and no presales or account management.

JOB RESPONSIBILITIES
  • Resolve complex Microsoft 365 security and identity issues escalated from the service desk
  • Design, adjust and troubleshoot:
  • Entra ID / Azure AD (MFA, Conditional Access, access models)
  • Microsoft Defender for Office 365
  • Secure mail flow and phishing protections
  • Deliver assigned projects such as SharePoint Online migrations and tenant security uplift
  • Perform root-cause analysis and document outcomes for operational handover
  • Improve internal standards, runbooks and repeatability across client environments

QUALIFICATIONS
  • Strong hands-on experience with Microsoft 365 in an MSP or multi-tenant environment
  • Proven capability with Entra ID, Conditional Access and M365 security tooling
  • SharePoint Online administration and migration experience
  • Ability to work independently on assigned tasks with minimal supervision
  • Clear documentation and practical problem-solving skills
  • Microsoft certifications are welcome but not essential.


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