We have an excellent opportunity for a skilled Microsoft 365 (M365) Lead Engineer to join us on a contract basis (minimum of 3 months) in Aberdeen or London. As M365 Lead Engineer you will provide technical direction, design authority, and decision making for a complex tenant to tenant Microsoft 365 migration. The role oversees vendor led activities—approving runbooks and cutover plans, setting success/rollback criteria, assuring quality and compliance—and provides internal technical leadership where required. Acting as the primary internal owner, the Lead coordinates governance, risk and stakeholder engagement to deliver safe, secure migrations across OneDrive, OneNote, SharePoint Online, Microsoft Teams, Exchange, Power Platform (Power Apps/Automate) and Power BI with minimal business disruption.
What you’ll do
1. Act as M365 design authority for the migration: approve architecture patterns, runbooks, acceptance and rollback criteria; arbitrate technical choices across workloads and regions
2. Decision making & assurance: chair daily migration stand ups and go/no go forums; own defect triage, evidence based acceptance and hyper care exit
3. Security, identity & compliance alignment: ensure adherence to Entra ID, information protection, DLP/retention and audit obligations; own exceptions and remediations
4. Operational readiness & handover: ensure documentation, known issues and support playbooks are complete; confirm BAU support model/SLAs prior to exit
5. Stakeholder leadership: brief steering/design forums and BU leads; set clear user impact narratives and mitigation in comms and training
Key Responsibilities
6. Workload execution & assurance: Lead and assure vendor delivered migrations across OneDrive/OneNote, SharePoint Online, Teams, Exchange, Power Platform and Power BI by confirming readiness, monitoring execution, and validating post migration integrity of data, permissions, configurations and user experience
7. Planning & governance: approve scope, sequencing, freeze windows and rollback criteria; own the integrated cutover plan and risk posture
8. Commercial & licensing guardrails: validate partner SoW changes, licensing dependencies (e.g., cross tenant add ons) and cost impacts before execution
9. Regional compliance: ensure works council/region specific constraints are embedded in design, comms and execution plans
10. Continuous improvement: capture lessons learned and embed in subsequent waves, standards and runbooks
11. Acts as a bridge between subject matter experts (SMEs) and non-technical stakeholders, including project management resources, ensuring clear communication and understanding across all parties
12. Identifies and actively manages both internal and external technical dependencies to minimise risk and ensure successful project delivery
13. Serves as the key technical stakeholder for all required engagements, representing technical interests both within the project and to external partners, as well as across the business
14. Proactively identifies resourcing requirements and recommends changes in response to evolving project scope or priorities
What to bring
Essential
15. Enterprise scale leadership across OneDrive, OneNote, SharePoint, Exchange, Teams, Power Apps/Automate and Power BI, with authoritative understanding of migration boundaries and remediation patterns
16. Vendor management with authority: proven track record holding suppliers to milestones, quality gates and acceptance under a formal RACI/SoW
17. Automation & telemetry: advanced PowerShell/Graph skills for assessment/validation; ability to define dashboards/status reporting that reflect business risk and readiness
18. Change leadership: leads pilots, hyper care and user readiness at scale with measurable outcomes; excellent communication for executive and end user audiences
19. Power Platform/BI governance: environment strategy (DEV/UAT/PROD), DLP design, Dataverse/connector re binding; workspace and gateway strategies
20. Voice/meeting rooms exposure during tenant transitions and dependencies management
21. M&A / integration programmes with phased BU rollouts and complex dependency chains
22. Relevant Microsoft certifications
Preferred
How to Apply
We’re committed to creating an inclusive and accessible recruitment process. If you have any access needs or require adjustments at any stage of the application or assessment process, please let us know — we’re happy to support you.
Please note: All offers of employment will be subject to background checks and confirmation of the right to work in the UK.
📍 Location: Aberdeen or London (Hybrid working available)
📅 Apply now to be part of a team that values initiative, collaboration, and continuous improvement;