Cyber Security Engineer

GCS
Brixton, London, SW9 8BH, United Kingdom
2 weeks ago
£350 – £400 pd

Salary

£350 – £400 pd

Job Type
Contract
Work Pattern
Flexible
Work Location
Hybrid
Seniority
Mid
IR35 Status
Outside
Security Clearance
Required
Posted
14 Jul 2026 (2 weeks ago)

Benefits

Outside IR35 Remote working with limited on-site days

Cyber Security Engineer - Microsoft 365 & Azure

6-Month Contract | Outside IR35 | £(Apply online only) per day | Remote (UK) | 1-2 Days per Month On-Site (South West London)

A leading public sector organisation is looking for a Cyber Security Engineer to support a major cyber security improvement programme.

Working alongside the Cyber Security, Infrastructure and Platform teams, you'll help deliver a range of security enhancements across Microsoft 365, Azure and AWS, strengthening the organisation's overall security posture while improving identity, endpoint, cloud and data protection capabilities.

This is a fantastic opportunity for someone who enjoys hands-on engineering and wants to be involved in delivering meaningful security improvements across a large enterprise environment.

Key Responsibilities

Deliver security improvement projects across Microsoft 365, Azure and AWS.

Implement and enhance security controls across identity, endpoint, cloud and data protection.

Configure and support Microsoft Intune, Microsoft Defender, Microsoft Purview and related Microsoft security technologies.

Assist with SIEM configuration, alert tuning and security monitoring.

Support Identity & Access Management improvements, including MFA, Conditional Access and Microsoft Entra ID.

Work closely with Infrastructure, Platform and Service Desk teams to plan and implement security changes.

Assist with vulnerability management and endpoint security improvements.

Support cloud security initiatives across Azure and AWS.

Produce clear technical documentation and operational handover documentation.

Work collaboratively with internal technical teams to ensure successful delivery of security initiatives.

Essential Experience

We're looking for someone with experience across several of the following areas:

Experience working as a Cyber Security Engineer within an enterprise environment.

Good knowledge of Microsoft 365 and Azure security.

Experience with Microsoft Intune and Microsoft Defender.

Understanding of Identity & Access Management, including Microsoft Entra ID, MFA and Conditional Access.

Experience supporting or configuring SIEM platforms (Microsoft Sentinel or similar).

Knowledge of endpoint security and vulnerability management.

Experience working within Azure and/or AWS environments.

Basic PowerShell scripting skills.

Experience delivering technical projects and working with multiple technology teams.

Strong communication skills with the ability to produce clear technical documentation.

Desirable Experience

Experience in any of the following would be beneficial but is not essential:

Microsoft Purview, DLP or Information Protection.

Zscaler (ZIA/ZPA).

AWS Security.

Infrastructure-as-Code (Terraform, Bicep or ARM Templates).

Experience within the UK Public Sector or another regulated environment.

Knowledge of UK GDPR, PSN or PCI DSS.

Contract Details

Role: Cyber Security Engineer - Microsoft 365 & Azure

Contract: 6 Months

Day Rate: £(Apply online only) per day

IR35 Status: Outside IR35

Location: Remote (UK)

Travel: 1-2 days per month on-site in South West London

Start Date: ASAPThis is an excellent opportunity to join a high-profile cyber security programme, working on modern Microsoft security technologies within a collaborative team while enjoying the flexibility of a predominantly remote contract.

GCS is acting as an Employment Business in relation to this vacancy

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