L3 Microsoft 365 Engineer

astreya· Astreya Partners, LLC
Apply Now ↗
📍 Chicago, ILFull time

About this role

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.

Frequently Asked Questions

Is the salary disclosed for the L3 Microsoft 365 Engineer position at astreya?
The salary for this L3 Microsoft 365 Engineer role at astreya is not publicly listed. Click "Apply Now" to learn more about the compensation package on their official careers page.
Where is the L3 Microsoft 365 Engineer position at astreya located?
This L3 Microsoft 365 Engineer role at astreya is based in Chicago, IL. The position is listed as on-site or hybrid. Check the full job description or apply directly to confirm the work arrangement.
Is the L3 Microsoft 365 Engineer role at astreya full-time or part-time?
This is listed as a Full time position. It is posted as a L3 Microsoft 365 Engineer role in the Astreya Partners, LLC department at astreya.
Which team or department does the L3 Microsoft 365 Engineer at astreya belong to?
This L3 Microsoft 365 Engineer position is part of the Astreya Partners, LLC department at astreya. See the full job description for more information about the team structure and responsibilities.
How do I apply for the L3 Microsoft 365 Engineer position at astreya?
Click the "Apply Now" button on this page. You will be redirected to astreya's official application portal hosted on workday where you can submit your application directly.
When was the L3 Microsoft 365 Engineer job at astreya posted?
This L3 Microsoft 365 Engineer position at astreya was posted on Sep 29, 2026. Apply as soon as possible — early applications are often reviewed first.
L3 Microsoft 365 Engineer
astreya
Apply for this role ↗

You'll be redirected to astreya's official application page on Workday.