Cyber Security Engineer – Inside IR35 – Up to £650 per day

Hybrid in London (2 Days per week on site)

We are seeking a Cyber Security Engineer to support and enhance enterprise security tooling, SIEM operations, and security monitoring within a global environment. The role will focus on Microsoft security technologies, detection engineering, automation, and threat monitoring.

Key Responsibilities

• Manage and optimise Microsoft Sentinel, Defender, Purview, and associated security platforms.
• Lead log source onboarding, dashboard development, data integration, and monitoring improvements.
• Develop SIEM detections, KQL queries, security use cases, and monitoring content.
• Build automation solutions using Logic Apps, DCR Filtering, PowerShell, Python, and APIs.
• Support security platform enhancements, integrations, and threat detection initiatives.

Required Skills

• Advanced KQL knowledge.
• Logic Apps, DCR Filtering, and security automation experience.
• Log source onboarding, dashboard creation, and security logging expertise.
• Use case development, detection engineering, and SIEM operations.
• Scripting skills with PowerShell and/or Python.
• CyberArk/PAM experience.
• Windows Server and Active Directory knowledge.
• Networking fundamentals (DNS, TCP/IP, Firewalls).
• General cybersecurity, incident response, and threat detection experience.
• Financial Services background and relevant security certifications (CISSP, CISM, GIAC, Microsoft, AWS, GCP).

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