M365 Infrastructure Engineer

Systems Engineer (Microsoft 365)

Guildford (Hybrid – up to 2 Days Onsite)

Up to £58,000

2-Year Fixed-Term Contract

Why Has This Role Arisen?

An established organisation is investing heavily in its Microsoft ecosystem and growing its infrastructure engineering capability to support a broad range of Microsoft 365, identity, security and email-related initiatives. This role has been created to add specialist expertise, strengthen the team and help deliver several key platform improvement projects.

Working within a small, highly skilled engineering team, you'll take ownership of core Microsoft 365 services and play a key role in shaping, improving and supporting the organisation's Microsoft environment. This is a senior engineering position focused on platform ownership, technical delivery and continuous improvement rather than end-user support.

Key Responsibilities

• Manage and optimise Microsoft 365 tenant configuration and governance
• Administer licensing, dynamic groups and user lifecycle management
• Support and improve Exchange Online and email services
• Manage mail routing, mailbox configuration and email security
• Work closely with Cyber Security teams on authentication and access controls
• Implement and support Conditional Access, MFA and identity security policies
• Develop PowerShell automation and process improvements
• Deliver technical changes from design and testing through to implementation and handover
• Act as a senior escalation point for Microsoft 365-related issues
• Produce technical documentation, mentor colleagues and share knowledge across the team

Wanted Skills & Technologies

We're particularly interested in candidates with experience across:

• Microsoft 365 Tenant Administration
• Exchange Online
• Entra ID (Azure AD)
• Conditional Access
• Multi-Factor Authentication (MFA)
• Identity & Access Management
• PowerShell Scripting & Automation
• Microsoft 365 Licensing & Governance
• Email Security & Mail Flow Management
• Third Line Infrastructure Support
• DNS, DHCP and TCP/IP Networking Fundamentals

Why This Role?

• Take ownership of a large-scale Microsoft 365 environment supporting thousands of users
• Become a key technical SME across Microsoft 365, Exchange Online and Entra ID
• Play a leading role in platform improvements, modernisation initiatives and technical project delivery
• Work across identity, security, automation and cloud technologies rather than pure operational support
• Influence technical decisions and help shape the future direction of the Microsoft estate
• Join a collaborative engineering team that values knowledge sharing and continuous improvement
• Benefit from flexible hybrid working and an excellent work-life balance
• Gain exposure to enterprise-level Microsoft technologies within a complex environment

If this is a role that suits your experience and wants, please do apply or email d.ruthven@gravitasgroup.com for a confidential conversation. If this role isn’t exactly what you’re looking for, we are also hiring for an Azure Senior Engineer and an Automation and Identity Senior Engineer.