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3rd Line Support Engineer

Job in London, Greater London, W1B, England, UK
Listing for: ECS Resource Group Ltd
Full Time position
Listed on 2026-02-27
Job specializations:
  • IT/Tech
    Cloud Computing, Cybersecurity, Systems Engineer, IT Support
Salary/Wage Range or Industry Benchmark: 270 GBP Daily GBP 270.00 DAY
Job Description & How to Apply Below
3rd Line Microsoft Engineer

Location:

Belgravia, London (5x days onsite per week)

Day Rate: £270.00 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 , Intune, Power Shell, 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  (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.

What We're Looking For

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

ECS Recruitment Group Ltd is acting as an Employment Business in relation to this vacancy
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