Define end-to-end architecture for Exchange Online, Exchange Hybrid, and hybrid identity solutions in enterprise Microsoft 365 environments.
Lead architectural planning for messaging modernization initiatives, including tenant onboarding, hybrid coexistence, cloud migrations, tenant-to-tenant transitions, and archive strategies.
Develop architecture patterns for Exchange Online integration with on-premises Exchange, Microsoft Entra ID, identity synchronization services, mail hygiene platforms, and enterprise security controls.
Design hybrid mail flow, authentication, namespace, routing, and coexistence strategies that support business continuity and phased migration execution.
Establish migration strategies, wave planning frameworks, readiness criteria, cutover models, rollback approaches, and post-migration stabilization guidance for enterprise-scale programs.
Evaluate and define target-state architectures for identity and messaging services, including synchronization scope, authentication dependencies, directory hygiene, object governance, and access control alignment.
Lead technical assessments of current-state environments and translate findings into architectural recommendations, decision papers, roadmaps, and implementation guidance.
Provide architectural oversight for complex issues involving mail routing, hybrid connectivity, directory synchronization, client authentication, legacy dependencies, and service interoperability.
Partner with security and compliance stakeholders to ensure messaging and identity architecture aligns with regulatory obligations, audit expectations, retention requirements, and enterprise protection standards.
Define engineering standards, design principles, reference architectures, and implementation guardrails for messaging and hybrid identity services.
Requirements
10+ years of experience in Microsoft messaging, identity, and enterprise infrastructure architecture.
Microsoft 365 Certified: Administrator Expert (MS-102) Certification
Identity and Access Administrator Associate (SC-300) Certification
Deep expertise in Exchange Online and Exchange Hybrid architecture for large or complex environments.
Strong experience with Exchange Server in support of coexistence, hybrid dependencies, recipient management, and legacy messaging integration.
Strong experience with Active Directory and multi-domain and multi-forest scenarios.
Advanced knowledge of Microsoft Entra ID, hybrid identity architecture, Entra Connect / Azure AD Connect, authentication models, and identity lifecycle dependencies.
Proven experience architecting and guiding enterprise messaging migrations, including hybrid migrations, large-scale mailbox moves, tenant transitions, or coexistence programs.
Advanced understanding of mail flow architecture, including SMTP routing, connector strategy, DNS dependencies, namespace planning, message hygiene, and secure relay patterns.
Tech Stack
Azure
Cloud
DNS
SMTP
Benefits
Competitive Salaries
Qualified Overtime
Paid Time Off (PTO)
Flexible Holiday Leave (88 hours per year)
Parental Leave
Immediate Healthcare: Medical, Dental, Vision, and Life Insurance
Employee Stock Ownership Plan (ESOP)
401(k) Retirement Plan (5% match on base compensation, immediate 100% vesting)