Microsoft 365 Engineer

Microsoft 365 & Email/Messaging Engineer The Senior Microsoft 365 & Email/Messaging Engineer leads Hillenbrand's Exchange Online, Teams and Microsoft 365 collaboration services across a large, global enterprise. The role focuses on standardization, security, cost optimization and resilience. It drives consolidation of acquired and legacy environments into a single Microsoft 365 tenant, directs managed service providers, and owns eDiscovery. Key Responsibilities ·       Lead engineering, architecture and operations for Exchange Online, Teams, and OneDrive, including the small on-premises Exchange footprint. ·       Own mail flow and messaging: domains, connectors, transport rules, shared and resource mailboxes, permissions, and secure mail relay for applications and devices. ·       Lead tenant and domain consolidation toward one tenant, including assessment, migration, coexistence and cutover. ·       Manage Microsoft 365 licensing: assign, reclaim and consolidate SKUs and add-ons (Teams Phone, Audio Conferencing, Teams Premium, Teams Rooms) and report cost savings. ·       Administer Teams on the Microsoft side: Direct Routing and Calling Plans, policies, call quality and Teams Rooms, coordinating with the telephony team and carriers. ·       Own eDiscovery in Microsoft Purview: holds, searches, exports and case management, in partnership with Legal and HR. ·       Contribute to Defender for Office 365 and DLP: SPF/DKIM/DMARC, anti-phishing and anti-spam policies, policy tuning and incident follow-up with the security team. ·       Share ownership of Entra Connect and hybrid identity sync with the data center team. ·       Support retention, sensitivity labels, audit logging, guest and external sharing controls, and mailbox and Teams lifecycle management. ·       Direct and hold accountable managed service providers for Microsoft 365 and messaging operations. ·       Use PowerShell, Microsoft Graph, automation and AI to improve efficiency and produce reporting on licenses, mail flow, Teams usage and call quality. ·       Define and report KPIs for mail delivery, Teams quality, license utilization, security posture and project progress. ·       Partner with identity, infrastructure, network, security, application and service-desk teams, and with ServiceNow for incident, change and CMDB processes. ·       Maintain standards, runbooks and documentation, and participate in a light on-call rotation. Required Qualifications ·       10+ years of enterprise experience with Exchange (Online and hybrid) and Microsoft 365. ·       Deep knowledge of mail flow and messaging security: SPF/DKIM/DMARC, connectors, transport rules, Autodiscover and mailbox permissions. ·       Proven M&A experience: tenant-to-tenant migrations, domain and mail-flow consolidation, and legacy rationalization. ·       Hands-on Teams administration, including Direct Routing, Calling Plans and meeting rooms.