M365 Migration Project Manager

Thomas Ren Associates Ltd; Greater London; On-site; GBP 70,000 - 110,000; Full time

Job summary

Thomas Ren Associates Ltd is seeking an experienced M365 Migration Project Manager to lead data and endpoint migrations within a large-scale, international tenant-consolidation programme. You will oversee Exchange Online and OneDrive for Business migrations using Microsoft’s native cross-tenant migration tools, alongside Windows endpoint migrations using Quest OnDemand AD.

You will coordinate technical specialists, migration delivery teams and business stakeholders to ensure readiness, effective

Qualifications

• Proven track record in M365 tenant-to-tenant migrations and endpoint migrations.
• Experience with Exchange Online and OneDrive for Business migrations using native tools and Quest OnDemand AD.
• Delivery-focused PM role; hands-on engineering is not required.

Responsibilities

• Own end-to-end migration planning and delivery with waves and milestones.
• Coordinate technical teams and stakeholders for readiness and cutovers.
• Resolve migration blockers and validate post-migration transition to hypercare.
• Provide governance, risk, issue management and progress reporting.

Skills

Project management

Stakeholder management

Migration planning

Exchange Online

OneDrive for Business

Windows endpoint migration

Intune

Team coordination

Quest OnDemand AD

Tools

Quest OnDemand AD

Microsoft migration tools

Job description

We are seeking an experienced M365 Migration Project Manager to lead data and endpoint migrations within a large-scale, international tenant-consolidation programme. You will oversee Exchange Online and OneDrive for Business migrations using Microsoft’s native cross-tenant migration tools, alongside Windows endpoint migrations using Quest OnDemand AD.

Key responsibilities

• Own end-to-end migration planning and delivery, aligning user, data and device migration waves, milestones and dependencies.
• Coordinate technical specialists, migration delivery teams and business stakeholders to ensure readiness, effective communications and controlled cutovers.
• Drive resolution of migration issues and blockers, coordinating post-migration validation and transition into hypercare and operational support.
• Maintain clear governance, risk and issue management, delivery assurance and progress reporting to programme leadership.

About you

You will have a proven track record of managing M365 tenant-to-tenant and endpoint migration projects, with experience overseeingMicrosoft-native cross-tenant migrations for Exchange Online and OneDrive for Business, and Quest OnDemand AD migrations for Windows devices.

A strong understanding of Intune-managed environments, excellent stakeholder management and experience coordinating distributed technical teams are essential.

This is a delivery-focused project management role rather than a hands-on engineering position.