Exchange Online Migration & Mobility Lead 100%

Lead Exchange Online Migration and Mobility Transformation

Drive the strategic transition of mailboxes from on-premises Exchange to Exchange Online while replacing legacy BlackBerry Work and Access solutions with a modern mobile experience. This role requires leading the migration of hybrid-prepared environments, ensuring seamless coexistence, and delivering a robust mobile access strategy for a regulated environment.

Core Responsibilities

• Design and execute the comprehensive mailbox migration approach, including wave planning, pilot execution, cutover, rollback strategies, coexistence management, and hypercare support.
• Plan for critical messaging components such as mail flow, calendar free/busy status, public folders, shared mailboxes, archives, and larger mailbox sizes.
• Design BYOD mobile access using Outlook mobile with Intune MAM to replace BlackBerry Work and Access, including Intranet access capabilities.
• Coordinate with Endpoint and Security engineers to ensure compatibility for the new Outlook client and add-ins.
• Manage migration tooling, automation, reporting, and wave readiness checks to maintain operational efficiency.
• Supervise nearshore and offshore migration engineers to ensure consistent quality and adherence to standards.

Required Experience and Skills

• Over seven years in messaging engineering, with at least three completed Exchange hybrid-to-online migrations involving 5,000 or more mailboxes.
• Deep proficiency in PowerShell and automation skills.
• Experience in mobile mail modernization, specifically transitioning from BlackBerry or similar platforms to Outlook mobile and Intune.
• Proven experience in regulated environments, including journaling, retention policies, and compliance archiving.
• Strong planning capabilities and strict runbook discipline.

Preferred Qualifications

• MS-102 certification or equivalent.
• Experience with third-party migration tools.
• Familiarity with multi-region tenant and data-residency considerations.