3rd Line Support Engineer

Location:

London, United Kingdom

Salary:

270.00

Type:

Contract

Start Date:

As Soon As Possible

Contract Period:

To be confirmed.

Main Industry:

Search Information Technology Jobs

Job ID:

133018052

Company:

ECS Resource Group Ltd

Posted On:

24 May 2026

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

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