M365 Transition Engineer

Sanderson Government and Defence; Milton Keynes; Hybrid; GBP 48,000 - 88,000; Full time

Job summary

Sanderson Government and Defence in Milton Keynes is seeking an experienced M365 Transition Engineer to join a high-profile defence programme on a hybrid basis. The role focuses on service stabilisation, knowledge transfer, mentoring and capability uplift.

You will provide specialist Microsoft 365 support, drive improvements across incident management and 2nd line throughput, and create runbooks and SOPs to strengthen the secure estate.

Qualifications

• Strong operational experience across Microsoft 365 environments.
• Microsoft 365 administration and support experience.
• Experience with Exchange Online.
• Experience with Microsoft Teams.
• Experience with SharePoint Online.
• Experience with OneDrive.
• Experience with Azure Active Directory / Entra ID.
• Experience with Microsoft Intune.
• Experience with identity and access management.
• Experience with incident, problem, and service management processes.
• Experience developing documentation and managing operational knowledge.

Responsibilities

• Provide specialist support for complex Microsoft 365 incidents, requests, and operational issues.
• Increase 2nd Line support throughput and technical capability.
• Improve incident triage, diagnosis, and resolution processes.
• Reduce service backlog and improve overall time-to-resolution metrics.
• Improve first-time and 2nd Line resolution rates across Microsoft 365 technologies.
• Minimise avoidable escalations to 3rd Line support teams through enhanced troubleshooting and escalation quality.
• Support major incident management and service stabilisation activities.
• Create and maintain operational documentation, including run books, standard operating procedures, troubleshooting guides, and knowledge articles.
• Deliver structured knowledge transfer through team mentoring, technical coaching, pairing sessions, and support clinics.
• Drive continuous service improvement initiatives across the Microsoft 365 support function.

Skills

Microsoft 365

Exchange Online

Teams

SharePoint Online

OneDrive

Azure Active Directory

Microsoft Intune

Identity and access management

Incident management

Documentation

Tools

Active Directory

Azure

Office 365

Cloud

Incidents

Job description

Salary: £48,000 - 88,000 per year

Requirements:

• Strong operational experience across Microsoft 365 environments
• Microsoft 365 administration and support experience
• Experience with Exchange Online
• Experience with Microsoft Teams
• Experience with SharePoint Online
• Experience with OneDrive
• Experience with Azure Active Directory / Entra ID
• Experience with Microsoft Intune
• Experience with identity and access management
• Experience with incident, problem, and service management processes
• Experience developing documentation and managing operational knowledge

Responsibilities:

• Provide specialist support for complex Microsoft 365 incidents, requests, and operational issues
• Increase 2nd Line support throughput and technical capability
• Improve incident triage, diagnosis, and resolution processes
• Reduce service backlog and improve overall time-to-resolution metrics
• Improve first-time and 2nd Line resolution rates across Microsoft 365 technologies
• Minimise avoidable escalations to 3rd Line support teams through enhanced troubleshooting and escalation quality
• Support major incident management and service stabilisation activities
• Create and maintain operational documentation, including run books, standard operating procedures, troubleshooting guides, and knowledge articles
• Deliver structured knowledge transfer through team mentoring, technical coaching, pairing sessions, and support clinics
• Drive continuous service improvement initiatives across the Microsoft 365 support function

Technologies:

• Active Directory
• Azure
• Incident Management
• Support
• Microsoft 365
• Microsoft Intune
• SharePoint
• Office 365
• Cloud
• C++
• Embedded

More:

We are seeking an experienced M365 Transition Engineer to support a high-profile Defence programme in Milton Keynes on a hybrid basis. This role is focused on service stabilisation, knowledge transfer, mentoring, and capability uplift, helping to strengthen 2nd Line support functions while improving Microsoft 365 service performance across a complex and secure estate. We offer an excellent opportunity for an experienced M365 professional who enjoys combining technical expertise with mentoring and service improvement activities. We are proud of our diverse and inclusive community and welcome applications from people of all backgrounds and perspectives, and we support adjustments during the recruitment process where needed.

last updated 40 week of 2026