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Senior Microsoft 365 Engineer
Job in
Greater London, London, Greater London, W1B, England, UK
Listed on 2026-09-26
Listing for:
Go Fractional
Full Time
position Listed on 2026-09-26
Job specializations:
-
IT/Tech
M365, SharePoint & Power Platform, Cybersecurity, Cloud Computing: Infrastructure & Operations
Job Description & How to Apply Below
Senior Microsoft 365 Engineer
Location: London, UK
Contract: 4-Month Fixed Term Contract
Work Arrangement: Onsite role
Role SummaryWe are seeking an experienced Senior Microsoft 365 Engineer to design, implement, administer, and optimize Microsoft 365 services across a large enterprise environment. The role focuses on collaboration, messaging, identity, security, governance, and automation within the Microsoft ecosystem.
Key Responsibilities- Design and support Microsoft 365 services including Exchange Online, Teams, SharePoint Online, One Drive, Power Platform, and Entra .
- Provide Tier 3 support for complex identity, collaboration, and messaging issues.
- Manage Microsoft 365 tenant administration, licensing, governance, and user lifecycle management.
- Implement and maintain security, compliance, retention, and information protection solutions.
- Administer Entra , Hybrid Identity, Conditional Access, MFA, and Identity Governance.
- Manage Exchange Online mail flow, transport rules, messaging security, and hybrid environments.
- Develop automation using Power Shell and Microsoft Graph API.
- Monitor platform health, performance, security, and adoption trends.
- Create technical documentation, operational procedures, and knowledge articles.
- Collaborate with security, infrastructure, and business teams on enterprise solutions.
- Mentor junior engineers and contribute to Microsoft 365 roadmap and architecture decisions.
- 7+ years of infrastructure/platform engineering experience.
- 5+ years of Microsoft 365 engineering and administration experience.
- Strong hands-on expertise in:
- Exchange Online
- Microsoft Teams
- SharePoint Online
- One Drive for Business
- Microsoft Entra
- Power Platform
- Experience with:
- Hybrid Identity and Active Directory integration
- Conditional Access and MFA
- Microsoft Purview, DLP, Sensitivity Labels, Retention & eDiscovery
- Power Shell scripting and automation
- Microsoft Graph API
- Enterprise-scale Microsoft 365 environments
- Governance, security, and compliance frameworks
- Git/Git Hub
- Microsoft Defender for Office 365
- Microsoft Defender XDR
- Microsoft Copilot for Microsoft 365
- Power Apps, Power Automate, and Power BI administration
- Multi-tenant/global Microsoft 365 environments
- Microsoft 365 Certified:
Enterprise Administrator Expert - Microsoft Certified:
Identity and Access Administrator Associate - Microsoft Certified:
Messaging Administrator Associate
Position Requirements
10+ Years
work experience
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