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Astreya

L3 Microsoft 365 Engineer

Chicago, IL

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hirly's read of this role

Seniority
Mid level
Country
US
Work mode
On-site / unstated
First seen by hirly
30 Sept 2026

Derived automatically from the posting. Upload your resume above to see how the role scores against it.

the posting

  • Microsoft 365 Administration
  • Provide L3 support for Microsoft 365 services and act as the final escalation point for complex incidents.
  • Design, implement, and maintain Microsoft 365 solutions aligned with business requirements.
  • Perform tenant administration, health monitoring, and service optimization.
  • Exchange Online
  • Manage Exchange Online administration, mail flow, transport rules, connectors, and compliance policies.
  • Troubleshoot complex mailbox, calendaring, mail routing, and hybrid Exchange issues.
  • Support email migration and modernization initiatives.
  • Microsoft Teams
  • Administer Teams policies, governance, voice configurations, and collaboration services.
  • Troubleshoot Teams client, meeting, calling, and integration issues.
  • Support Teams adoption and optimization initiatives.
  • SharePoint Online
  • Manage SharePoint Online sites, permissions, storage, content management, and governance.
  • Troubleshoot site performance, access, search, and integration issues.
  • Support collaboration and document management solutions.
  • Microsoft Entra ID (Azure AD)
  • Administer user lifecycle management, groups, RBAC, Conditional Access, MFA, and Identity Governance.
  • Manage SSO, application integrations, and federation services.
  • Support identity security, access reviews, and compliance initiatives.
  • Security & Compliance
  • Implement and maintain Microsoft security best practices.
  • Support audits, compliance requirements, and security investigations.
  • Collaborate with cybersecurity teams to enhance tenant security posture.
  • Automation & Continuous Improvement
  • Develop automation scripts using PowerShell.
  • Create operational runbooks and knowledge articles.
  • Identify opportunities for service improvements and operational efficiencies.
  • Required Skills
  • Expert knowledge of Microsoft 365 administration.
  • Strong expertise in:
  • o Exchange Online
  • o Microsoft Teams
  • o SharePoint Online
  • o Microsoft Entra ID (Azure AD)
  • Experience with PowerShell scripting and automation.
  • Strong understanding of Microsoft 365 security and compliance features.
  • Experience with hybrid environments and identity synchronization.
  • Preferred Qualifications
  • Microsoft Certified: Enterprise Administrator Expert.
  • Microsoft Certified: Identity and Access Administrator Associate.
  • Microsoft Certified: Messaging Administrator Associate.
  • Experience with Intune, Purview, Defender, and Power Platform is desirable.
  • Key Competencies
  • Advanced troubleshooting and problem-solving skills.
  • Strong stakeholder communication and documentation skills.
  • Ability to lead major incident resolution and root-cause analysis.
  • Experience working in global 24x7 enterprise environments.
Original posting on Astreya's site ↗

Listed on hirly, a job board. hirly is not the employer: Astreya is hiring for this role.

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