Cyber Security Engineer (OUTSIDE IR35)

Reference: Cyber-OUTSIDE_1784018669

Cyber Security Engineer - Microsoft 365 & Azure

6-Month Contract | Outside IR35 | £350-400 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: £350-400 per day
  • IR35 Status: Outside IR35
  • Location: Remote (UK)
  • Travel: 1-2 days per month on-site in South West London
  • Start Date: ASAP

This 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.

£350.00 - £400.00
Per day
GBP350 - GBP400 per day + Remote
Added 14/07/2026
Reference: Cyber-OUTSIDE_1784018669

Cyber Security Engineer (OUTSIDE IR35)

Greater London, United Kingdom Contract Cyber engineer Remote

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