Microsoft 365 Engineer

Senior Microsoft 365 Engineer

Location: London UK
Contract: 4-Month Fixed Term Contract

Onsite role

Role Summary

We 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 OneDrive Power Platform and Entra ID.
• 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 ID Hybrid Identity Conditional Access MFA and Identity Governance.
• Manage Exchange Online mail flow transport rules messaging security and hybrid environments.
• Develop automation using PowerShell 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.

Required Skills & Experience

• 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
• OneDrive for Business
• Microsoft Entra ID
• Power Platform
• Experience with:
• Hybrid Identity and Active Directory integration
• Conditional Access and MFA
• Microsoft Purview DLP Sensitivity Labels Retention & eDiscovery
• PowerShell scripting and automation
• Microsoft Graph API
• Enterprise-scale Microsoft 365 environments
• Governance security and compliance frameworks
• Git/GitHub

Preferred Skills

• 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

Certifications (Preferred)

• Microsoft 365 Certified: Enterprise Administrator Expert
• Microsoft Certified: Identity and Access Administrator Associate
• Microsoft Certified: Messaging Administrator Associate