M365 Infrastructure Engineer

Gravitas Recruitment Group (Global) Ltd; Guildford; Hybrid; GBP 52,000 - 64,000; Full time

Job summary

Gravitas Recruitment Group (Global) Ltd in Guildford is seeking a senior Microsoft 365 Engineer to own the platform, drive delivery and implement improvements across Exchange Online, Entra ID and security services. The role is hybrid, with up to two days onsite, and offers a fixed-term 2-year contract.

You will develop PowerShell automation, collaborate with cyber security teams, mentor colleagues and shape the future Microsoft estate while delivering projects in a busy enterprise environment.

Qualifications

• Senior-level Microsoft 365 expertise with experience across Exchange Online, Conditional Access and identity security.
• Strong PowerShell scripting and automation capabilities.
• Experience with licensing and governance of Microsoft 365.

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.
• Collaborate 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.

Skills

Exchange Online

Conditional Access

Identity & Access Management

PowerShell scripting & automation

Microsoft 365 Licensing & Governance

Email Security & Mail Flow Management

Third Line Infrastructure Support

DNS, DHCP & TCP/IP Networking

Tools

PowerShell

Job description

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:

• Exchange Online
• Conditional Access
• 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 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.