Exchange Engineer II

Major Responsibilities

• Design & Administration: Architect, deploy, and maintain Microsoft Exchange environments, including Exchange Online, on-prem Exchange, and hybrid configurations.
• Mailbox Management: Administer mailboxes, shared mailboxes, distribution groups, Microsoft 365 Groups, mail contacts, and mail-enabled security groups.
• Mail Flow & Connectivity: Configure and support mail flow, connectors, accepted domains, transport rules, and routing between internal and external systems.
• Platform Availability: Monitor Exchange service health, performance, and availability; implement capacity planning and initiative-taking remediation strategies.
• Hybrid Integration: Support hybrid identity and messaging integrations between on-prem Active Directory/Exchange and Microsoft 365.
• Troubleshooting & Support: Incident Response: Diagnose and resolve complex email delivery issues, outages, latency problems, mailbox access failures, and calendar/free-busy issues.
• Tier 3 Escalations: Function as the highest technical escalation point for messaging-related incidents originating from the service desk or infrastructure teams.
• Root Cause Analysis: Perform post-incident analysis and implement preventative controls to reduce recurrence.
• Threat Protection: Configure and maintain spam filtering, anti-phishing, malware protection, and email hygiene controls using Defender for Office 365 or third-party platforms (e.g., Proofpoint, Mimecast).
• Compliance Controls: Implement and manage retention policies, litigation holds, journaling, eDiscovery, DLP, and audit logging.
• Identity & Permissions: Partner with identity teams to enforce least-privilege access, role-based administration (RBAC), and strong authentication.
• DNS & Certificates: Own DNS records related to email services and configure SPF, DKIM, DMARC; manage SSL/TLS certificates used in mail flow and hybrid configurations.

Migrations, Upgrades & Automation

• Messaging Migrations: Lead mailbox migrations, tenant-to-tenant moves, and upgrades from on-prem Exchange to Exchange Online.
• Change Management: Plan and execute platform changes with minimal business impact, following formal change control processes.
• Automation: Develop and maintain PowerShell automation for provisioning, reporting, compliance tasks, and operational efficiencies.

Messaging Resiliency & Continuity

• Backup & Recovery: Support backup, recovery, and continuity strategies for messaging systems in alignment with enterprise DR standards.
• Business Continuity: Partner with infrastructure teams to ensure messaging services meet RTO/RPO requirements.

Documentation & Collaboration

• Operational Documentation: Maintain architecture diagrams, configuration documentation, runbooks, and support procedures.
• Cross-Team Partnerships: Collaborate closely with Security, Infrastructure, Microsoft 365, and Help Desk teams to ensure cohesive service delivery.
• Audits & Reviews: Provide documentation and evidence to support internal and external audits as required.