3Rd Line Support Engineer

3rd Line Microsoft Engineer

Location:

Belgravia, London (5x days onsite per week)

Day Rate: £270.00 per day

Length: 3 months

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 , Intune, Power Shell, Azure services, and email security (Mimecast).

• Acting as a senior escalation point for 2nd Line teams and resolving complex Microsoft‑related incidents.
• Administering, managing, and troubleshooting Entra  (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 Power Shell 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.

• Strong background in 3rd Line / Senior Support roles
• Deep knowledge of Microsoft 365, Entra , Azure AD, and modern identity/security
• Hands‑on experience building and configuring policies in Microsoft Intune
• Solid Power Shell scripting skills
• Experience supporting and configuring Mimecast
• Strong understanding of Windows client OS, device management, Exchange Online, and cloud security