The L3 Exchange Server Administrator is a senior-level role responsible for the design, implementation, maintenance, and troubleshooting of Microsoft Exchange environments (on-premises and hybrid/cloud). This role involves handling escalated issues, optimizing performance, ensuring high availability, and leading complex projects such as migrations and upgrades.

Key Accountabilities:
• Administer and maintain Microsoft Exchange Server 2013/2016/2019 and Exchange Online (Office 365).
• Handle L3 escalations from L1/L2 support teams and resolve complex messaging issues.
• Design and implement Exchange infrastructure solutions including DAGs, hybrid configurations, and mail flow rules.
• Monitor system performance, message queues, and logs to ensure optimal operation.
• Manage mailbox databases, perform mailbox moves/restores, and handle retention policies.
• Manage and troubleshoot Lotus Notes environments and support coexistence/migration scenarios.
• Administer and support enterprise email security and archiving tools
 Trend Micro (Email Security, Deep Discovery)
 Proofpoint (Email Protection, TAP)
 Voltage SecureMail (Data encryption and secure email delivery)
 Menlo Security (Web isolation and threat protection)
 SourceOne (Email archiving and eDiscovery)
• Automate administrative tasks using PowerShell scripting.
• Implement and manage security protocols including Exchange Online Protection (EOP), anti-spam, and anti-malware policies.
• Collaborate with Active Directory, Azure AD, and other infrastructure teams for integrated solutions.
• Lead Exchange migration projects (e.g., on-prem to cloud, tenant-to-tenant).
• Ensure compliance with IT policies, perform audits, and maintain documentation.

Requirements:
• Deep knowledge of Microsoft Exchange Server (2013/2016/2019) and Exchange Online.
• Expertise in Lotus notes, Trend Micro, Source one, Proofpoint, Menlo and voltage Appliances
• Strong PowerShell scripting skills.
• Experience with hybrid Exchange environments and migrations.
• Familiarity with Active Directory, DNS, and SMTP protocols.
• Understanding of security and compliance features in Microsoft 365Strong level of English and confident communicator.
• Good decision making and analytical skills.
• Strong team player with good interpersonal skills.
• Desire for continual learning.
• Intensively driven, proactive and delivery focused.
• Must be flexible and open minded - due to the nature of support work, each day is different, and workers must be willing to adapt and change to the changing situations