Job Description

3rd Line Microsoft Engineer
Location: Belgravia, London
Day Rate: £280 - £300 per day
Length:    3 Months


About the Role

We’re looking for a highly skilled 3rd Line Microsoft Engineer to join our growing IT & Cloud Services team. This is a hands-on technical role where you’ll act as an escalation point for complex issues, drive Microsoft cloud adoption, and help enhance our modern workplace environment.
You’ll play a key part in supporting, securing, and optimising our Microsoft ecosystem — with a strong focus on Entra ID, Intune, PowerShell, Azure services, and email security (Mimecast).


What You’ll Be Doing
• Acting as a senior escalation point for 2nd Line teams and resolving complex Microsoft-related incidents.
• Administering, managing, and troubleshooting Entra ID (Azure AD) including conditional access, identity protection, authentication and SSO.
• Creating, deploying, and managing Intune policies, configuration profiles, compliance policies, and application deployments.
• Developing and maintaining PowerShell scripts to automate tasks and improve service efficiency.
• Supporting and administering Mimecast including policies, mail flow, security setups, impersonation protection and overall email continuity.
• Managing Windows 10/11, Microsoft 365, Exchange Online and related cloud services.
• Participating in project work such as cloud migrations, security uplift programmes, and endpoint modernisation.
• Ensuring systems follow security best practices and compliance standards.
• Documenting solutions, creating runbooks, and contributing to continuous improvement.

What We’re Looking For
• Strong background in 3rd Line / Senior Support roles
• Deep knowledge of Microsoft 365, Entra ID, Azure AD, and modern identity/security
• Hands-on experience building and configuring policies in Microsoft Intune
• Solid PowerShell scripting skills
• Experience supporting and configuring Mimecast
• Strong understanding of Windows client OS, device management, Exchange Online, and cloud security