M365 Senior Systems Engineer
Atlas Search
A major global financial services organization is looking for a Senior Systems Engineer to own their Microsoft 365 platform — a complex, multi-tenant environment reshaped continuously by M&A activity. This senior IC role blends day-to-day M365 operations with leading cross-tenant migration and integration programs whenever a deal creates one. What you'll do: Lead M365 workstreams arising from acquisitions, mergers, and divestitures Plan and execute cross-tenant migrations: mailboxes, Teams, SharePoint/OneDrive, licensing Manage multi-tenant org (MTO) configuration: cross-tenant sync, shared address book, Teams Connect Own Exchange Online, SharePoint Online, Teams, and OneDrive governance at enterprise scale Administer Entra ID (Azure AD) and Power Platform environments, including app registrations and service principals Handle eDiscovery, compliance, and email security operations Triage M365 incidents and manage Windows server/virtualization infrastructure What you bring: 5+ years in Microsoft 365 / enterprise systems engineering at scale Required: hands‑on experience delivering M&A‑driven cross‑tenant migrations — mailboxes, Teams, SharePoint, and identity consolidation tied to an actual acquisition, merger, or divestiture Strong MTO, Entra ID, and Power Platform administration skills Familiarity with email security standards (DMARC/SPF/DKIM) and formal ITSM/change management Genuine enthusiasm for applying AI and automation to reduce operational toil #J-18808-Ljbffr Atlas Search
Vacancy posted 3 days ago
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