Microsoft Exchange Administrator

Job Summary

We are seeking a skilled Microsoft Exchange & Microsoft 365 Messaging Administrator to manage and support enterprise messaging environments. The ideal candidate will be responsible for administering Exchange Online and Exchange Server environments, ensuring secure and reliable email communication, managing mailbox lifecycle operations, and implementing security and compliance policies.

This role requires strong expertise in Exchange administration, PowerShell automation, mail flow management, and Microsoft 365 security/compliance tools.

Key Responsibilities

Exchange Mailbox Management

• Provision, configure, and decommission user, shared, resource, and archive mailboxes.
• Manage mailbox permissions including Full Access, Send As, and Send on Behalf.
• Monitor mailbox quotas and storage usage, and perform mailbox cleanup and recovery operations.
• Configure and manage Legal Hold, In-Place Hold, and retention policies to support compliance requirements.

Exchange Administration & Monitoring

• Administer and maintain Exchange Online and Exchange Server environments using Exchange Admin Center and PowerShell.
• Monitor service health, audit logs, and message trace to ensure system performance and availability.
• Manage RBAC permissions, certificates, and Exchange configuration settings.
• Develop and maintain PowerShell scripts to automate routine administrative tasks and reporting.

Mail Flow & Transport Rules

• Design, implement, and troubleshoot mail flow configurations, including connectors and transport rules.
• Manage Accepted Domains, Remote Domains, SMTP relays, and journaling configurations.
• Perform message tracing, NDR analysis, and email delivery troubleshooting.
• Optimize mail routing between Exchange Online and external or third-party messaging systems.

Security & Compliance

• Configure and maintain Data Loss Prevention (DLP), anti-phishing, and anti-malware policies.
• Implement retention and archiving policies aligned with regulatory and organizational requirements.
• Manage Microsoft Purview compliance solutions, including eDiscovery, audit logs, and sensitivity labels.
• Collaborate with security and infrastructure teams to ensure secure messaging practices and reporting.

Required Qualifications

• Proven experience administering Exchange Online and Exchange Server (2016/2019) in enterprise environments.
• Strong expertise in PowerShell scripting for Exchange administration and automation.
• In-depth knowledge of Microsoft 365 security and compliance tools, including Microsoft Purview.
• Hands-on experience managing mail flow, connectors, transport rules, and message hygiene.
• Experience with RBAC administration, mailbox recovery, and troubleshooting messaging environments.
• Excellent analytical, troubleshooting, and documentation skills.