O365 Admin; Exchange Online) L3 Support Engineer
Englewood Cliffs, Bergen County, New Jersey, 07632, USA
Listed on 2026-09-18
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IT/Tech
IT Support, Systems Administrator, Systems Engineer
Location: Englewood Cliffs
Job Title
Provide L3-level support for Exchange Online and hybrid Exchange environments.
Proofpoint experience is must.
Should have good experience in Powershell and should be able to develop scripts for bulk operations.
Troubleshoot and resolve complex issues related to mail flow, mailbox access, transport rules, and Exchange Online Protection (EOP).
Handle escalations from L1 and L2 teams, ensuring timely resolution within SLA.
Perform root cause analysis and implement permanent fixes for recurring issues.
Manage and support hybrid configurations (Exchange Online + Exchange On-Prem).
Collaborate with Microsoft support for unresolved or critical issues.
Monitor service health, usage reports, and alerts via Microsoft 365 Admin Center.
Assist in migration projects (e.g., Exchange On-Prem to Exchange Online).
Maintain and update technical documentation and knowledge base articles.
Participate in on-call rotations and provide support during critical incidents.
SharePoint and Onedrive experience will be an added advantage.
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