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Senior Technician Microsoft 365 SME

ScalableOS
UKRemotefull_timeVerifiedPosted 3 Mar 2026

About the role

This is a remote position.

SUMMARY

The Senior Microsoft 365 Technician is a subject matter expert responsible for designing, implementing, supporting, and optimizing Microsoft 365 environments across a portfolio of managed services clients. This role combines advanced technical troubleshooting, billable project execution, and technical leadership to ensure secure, reliable, and scalable Microsoft cloud environments.

This is a senior, escalation-level role within the Managed Services team and requires deep expertise in Microsoft 365, Entra ID (Azure AD), Exchange Online, SharePoint/OneDrive, Teams, and Microsoft security solutions.

JOB RESPONSIBILITIES

  • Microsoft 365 Subject Matter Expertise
    • Administer and architect Microsoft 365 environments across multiple tenants
    • Design and maintain:
      • Entra ID (Azure AD) identity and access controls
      • Conditional Access and MFA policies
      • Exchange Online configurations and mail flow
      • SharePoint and OneDrive governance
      • Teams’ configuration and optimization
    • Implement and optimize security controls including:
      • Microsoft Defender
      • Secure Score improvements
      • Data Loss Prevention (DLP)
      • Compliance policies
  • Advanced Troubleshooting & Escalation
    • Serve as Tier 3 escalation resource for complex Microsoft 365 incidents
    • Troubleshoot hybrid identity, Exchange, and synchronization issues
    • Own high-impact and priority incidents through resolution
    • Engage Microsoft support and vendors when required
    • Conduct root cause analysis and preventative remediation
  • Project Execution
    • Lead and execute Microsoft 365 related projects including:
      • Migrations (Exchange, SharePoint, OneDrive)
      • Tenant consolidations
      • Security posture improvements
      • Intune deployments
      • Hybrid environment remediation
    • Deliver projects within scope, timeline, and budget
    • Document as-built configurations and handoffs to support teams
  • Technical Leadership
    • Mentor Tier 1 2 technicians
    • Develop and maintain SOPs and knowledge base documentation
    • Identify trends and recurring issues across client environments
    • Recommend service improvements and standardization initiatives

QUALIFICATIONS

Required:

  • 5+ years of IT systems or cloud support experience
  • 3+ years hands-on Microsoft 365 administration experience
  • Experience working within an MSP environment preferred

Strong understanding of:

  • Entra ID (Azure AD)
  • Exchange Online and mail flow
  • Conditional Access
  • SharePoint/OneDrive architecture
  • Experience with hybrid environments (Azure AD Connect, on-prem AD)

Preferred Certifications:

  • Microsoft 365 Certified: Enterprise Administrator Expert
  • MS-102 (Microsoft 365 Administrator)
  • AZ-104 (Azure Administrator)
  • Security-related Microsoft certifications

JOB REQUIREMENTS

  • Should be willing to accept a long-term work-from-home arrangement.
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Company

ScalableOS

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