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hirly last saw it live on 23 September 2026. See similar open roles below, or browse all jobs in London.
Kryptos Technologies limited
Microsoft 365 Engineer
London
hirly's read of this role
- Seniority
- Mid level
- Country
- GB
- Work mode
- On-site / unstated
- First seen by hirly
- 23 Sept 2026
Derived automatically from the posting.
the posting
Tasks
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.
Requirements
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
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