M365 Transition Migration Lead

As an M365 Transition Migration Lead, you will make an impact by leading enterprise-wide Microsoft 365 transition and migration programs across collaboration, messaging, identity, and productivity platforms. You will be responsible for planning and executing complex migration initiatives, ensuring seamless adoption, maintaining governance and compliance standards, and driving operational excellence across global environments. You will collaborate with business stakeholders, technology teams, security partners, and support organizations to deliver secure, scalable, and user-centric M365 solutions.

• Lead end-to-end planning, coordination, and execution of Microsoft 365 transition and migration programs with minimal disruption to business operations.
• Conduct discovery and assessment activities for existing email, collaboration, productivity, and identity platforms to develop migration strategies and technical roadmaps.
• Coordinate migration waves, cutover activities, and transition schedules across Microsoft 365 workloads.
• Administer and support Microsoft 365 environments, including tenant configuration, licensing, security policies, and service monitoring.
• Establish and maintain governance frameworks for Microsoft 365 services, including access management, data handling, and service provisioning standards.
• Collaborate with Governance, Risk, and Compliance (GRC) teams to implement controls that support regulatory requirements and data protection objectives.
• Monitor migration performance, service health, and user experience metrics to identify optimization opportunities and improve platform adoption.
• Develop and maintain migration runbooks, operational procedures, support documentation, and knowledge articles.
• Support hypercare activities and post-migration stabilization efforts, addressing technical issues and optimizing configurations.
• Manage stakeholder communications, executive reporting, project updates, risks, dependencies, and mitigation plans.
• Partner with security, infrastructure, and architecture teams to ensure Microsoft 365 integrations align with enterprise standards and resilience requirements.
• Enable secure hybrid work capabilities, including collaboration, content sharing, identity management, and remote access solutions.
• Drive continuous improvement initiatives by incorporating lessons learned into migration methodologies, templates, and standards.
• Coordinate with support and operations teams to ensure successful transition into steady-state support models.

We believe hybrid work is the way forward as we strive to provide flexibility wherever possible. Based on this role’s business requirements, this is a hybrid position requiring 3 days a week in a client or Cognizant office in Toronto, ON. Regardless of your working arrangement, we are here to support a healthy work-life balance through our various wellbeing programs.

The working arrangements for this role are accurate as of the date of posting. This may change based on the project you’re engaged in, as well as business and client requirements. Rest assured; we will always be clear about role expectations.

• 8+ years of experience in Microsoft 365 administration, migration, and enterprise collaboration platform support.
• Strong hands-on expertise with Microsoft 365 services, including Exchange Online, Microsoft Teams, SharePoint Online, One Drive, Entra  (Azure AD), and related administrative functions.
• Experience leading large-scale transition and migration programs in enterprise environments.
• Knowledge of Microsoft 365 governance, security, compliance, and information protection capabilities.
• Experience with tenant administration, policy management,…