Senior Microsoft 365 Specialist

CityFibre provides wholesale connectivity to multiple business and consumer service providers, local authorities and mobile operators.

Job Description

As the UK's largest independent full fibre network and wholesale platform of choice, we're busy setting new standards for what digital infrastructure can and should be.

Our network is greener, more reliable and designed for the future. The products we run over it lead the way on speed, value and service - helping businesses to innovate, communities to thrive, and people to live more connected digital lives.

At CityFibre, you'll be part of something bigger, helping to build a better-connected Britain, together.

Joining us as a Senior Microsoft 365 Specialist

You'll play a key role in operating, improving and evolving the Microsoft 365 platform that supports secure and effective working across CityFibre. Working across identity, endpoint management, security, collaboration and emerging AI capabilities, you'll combine hands-on technical expertise with platform improvement, automation and third-line support. You'll work with technologies including Microsoft 365 E5, Entra ID, Intune, Defender, Purview and Copilot, helping us strengthen security, improve the user experience and safely introduce new capabilities.

You'll receive a salary of up to £64,000 DOE , a performance-related bonus and a range of benefits to support you across your financial, physical and mental wellbeing.

This is some of what you can expect to be doing:

• Operating and improving Microsoft 365 services across Entra ID, Intune, Exchange Online, SharePoint Online, Teams and OneDrive
• Managing identity, authentication and access controls, including Conditional Access, passwordless authentication and access governance
• Managing devices through Intune, including Autopilot, compliance, configuration, application deployment and device lifecycle across Windows, Apple and Android
• Strengthening security and data protection through Microsoft Defender, Purview, Data Loss Prevention and secure configuration
• Providing third-line support for complex Microsoft 365 incidents and escalations, alongside technical guidance and knowledge transfer to our helpdesk team
• Supporting Copilot and AI governance while using PowerShell and Microsoft Graph to automate and standardise Microsoft 365 administration

What you'll bring to the role

You'll be an experienced, hands-on Microsoft 365 specialist with strong expertise across identity, endpoint management and security, comfortable taking ownership of complex technical work and driving improvements across the platform. You'll also have:

• Strong Microsoft Entra ID experience, including Conditional Access, authentication, identity security and access governance
• Strong Microsoft Intune experience, including Autopilot, compliance policies, configuration profiles and application deployment
• Broad Microsoft 365 administration experience across Exchange Online, Teams, SharePoint Online and OneDrive
• Experience with Microsoft security and compliance technologies including Defender, Purview, DLP or information protection
• PowerShell and Microsoft Graph experience for administration, reporting and automation
• Strong cyber security knowledge alongside experience troubleshooting complex Microsoft 365 issues and providing third-line technical support

Life at CityFibre

Everyone deserves to feel heard, valued and truly included. Working alongside our Employee Communities, we're committed to creating a workplace where people feel a genuine sense of belonging and pride in what they do. That's why we're proud to be a Times Top 50 Employer for Gender Equality, endorsed by WORK180, a Disability Confident Leader, a Care Leaver Friendly Employer, and a signatory of the Armed Forces Covenant Gold Award.

We'll support you to thrive inside and outside of work, with opportunities to grow your career and a flexible benefits package that adapts to your life - including generous annual leave (with an extra day off on your birthday), private medical insurance, health cash plans and family-friendly policies.

Find out more about our culture, communities and benefits on our careers site .

Additional Information

We want to create a sense of belonging for everyone. We celebrate our differences and work to ensure everyone has the best chance to succeed, starting with our recruitment process. No matter your background, family or carer status, ethnicity, sexual orientation, religion, age, disability, gender, or gender identity, we welcome your application. If you need any support or reasonable adjustments throughout the application process, please email us at We want to help!

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