Cyber Security Engineer

Company: GCS
Apply for the Cyber Security Engineer
Location: London
Job Description:

Salary: £? – ? per year

Requirements

  • 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, such as 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.
  • Beneficial experience in Microsoft Purview, DLP or Information Protection.
  • Beneficial experience with Zscaler (ZIA/ZPA).
  • Beneficial AWS Security experience.
  • Beneficial Infrastructure-as-Code experience, such as Terraform, Bicep or ARM Templates.
  • Beneficial experience within the UK public sector or another regulated environment.
  • Beneficial knowledge of UK GDPR, PSN or PCI DSS.

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.

Technologies

  • ARM
  • AWS
  • Azure
  • Cloud
  • Support
  • Microsoft 365
  • Microsoft Intune
  • PowerShell
  • Security
  • Terraform
  • Office 365

More

We are a leading public sector organisation delivering a major cyber security improvement programme. This is a 6‑month outside IR35 contract offering a predominantly remote working arrangement across the UK, with 1–2 days per month on‑site in South West London. You will work alongside our Cyber Security, Infrastructure and Platform teams on modern Microsoft security technologies in a collaborative environment, supporting meaningful improvements to our overall security posture.

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Posted: July 17th, 2026