Cyber Security Engineer (OUTSIDE IR35)

GCS Recruitment; United States; Remote; USD 86,445 - 98,795; Full time

Job summary

GCS Recruitment is seeking a Cyber Security Engineer to strengthen Microsoft 365, Azure and AWS security as part of a major security improvement programme. You will work with Cyber Security, Infrastructure and Platform teams to deliver enhancements across identity, endpoint, cloud and data protection.

The role is a 6‑month contract with a day rate of £350‑£400, remote in the UK and 1–2 days per month on-site in South West London.

Qualifications

• Experience as Cyber Security Engineer in an enterprise environment.
• Solid knowledge of Microsoft 365 and Azure security.
• Experience with Intune and Defender.
• Understanding IAM, MFA, Conditional Access.
• Experience with SIEM platforms (Microsoft Sentinel).

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, Defender, Purview and related Microsoft security technologies.
• Assist with SIEM configuration, alert tuning and security monitoring.
• Support IAM improvements, including MFA, Conditional Access and Entra ID.
• Work with Infrastructure, Platform and Service Desk teams to plan security changes.
• Assist with vulnerability management and endpoint security improvements.
• Support cloud security initiatives across Azure and AWS.
• Produce technical documentation and handover materials.

Skills

Microsoft 365 security

Azure security

Intune

Entra ID / MFA

SIEM configuration

Endpoint security

PowerShell scripting

Tools

Microsoft Defender

Microsoft Sentinel

Job description

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.