Job Overview
We are seeking an experienced Senior Migration Architect to lead and govern large-scale enterprise email transformation projects, with a primary focus on migrating from Zimbra Email to Microsoft 365 (Office 365). The ideal candidate will be responsible for designing migration strategies, overseeing end-to-end program governance, ensuring secure and compliant migrations, and collaborating with business, infrastructure, security, and leadership teams to deliver a seamless migration experience.
The role requires strong expertise in Microsoft 365, hybrid identity, Azure AD (Microsoft Entra ID), email security, migration planning, stakeholder management, and enterprise program governance.
Key Responsibilities
- Lead enterprise-wide migration from Zimbra email to Microsoft O365 email
- Develop and design migration strategy, coexistence architecture, phase wise migration plans, and cutover approach.
- Conducting assessment of existing email infrastructure, mailbox dependencies, security controls, and integration requirements and filling any missing security gaps.
- Plan DLP policies for email, SharePoint and OneDrive
- Prepare migration design documents including HLD, LLD, migration runbooks, rollback plans, and user transition strategy.
- Owning end-to-end program governance, delivery oversight, milestone tracking, and risk management for migration initiatives.
- Manag stakeholders across business, IT, infrastructure, security, compliance, and leadership teams.
- Drive implementation strategy, pilot migrations, execution planning, user onboarding, and post-migration stabilization activities.
- Coordinate with Microsoft and partners, system integrators, and implementation service providers.
- Ensure secure migration with proper user's email data protection, compliance, retention policies, and identity integration.
- Support Azure AD, Intra ID connect, Conditional Access, Intune, and hybrid identity integration as part of O365 transformation.
- Define operational governance, support readiness, monitoring, and transition to BAU support teams.
- Prepare governance dashboards, migration status reports, and executive presentations for steering committee reviews.
Required Experience
- 10–15+ years of overall IT Infrastructure and Microsoft technologies experience.
- 5+ years of hands-on experience leading enterprise Microsoft 365 migration projects.
- Proven experience delivering large-scale Zimbra to Microsoft 365 migration programs.
- Strong experience in Microsoft 365 architecture, Exchange Online, hybrid environments, and enterprise messaging platforms.
- Experience managing enterprise-scale migration projects involving thousands of users.
- Demonstrated expertise in governance, stakeholder management, risk management, and executive reporting.
- Experience working with Microsoft implementation partners and system integrators.
