L3 SOC Analyst

L3 SOC Analyst

Contract | £500 per day | Inside IR35

We are supporting a client seeking an experienced L3 SOC Analyst to provide senior-level incident response and investigation within a Security Operations Centre.

Key Responsibilities

• Lead investigation and response to complex security incidents escalated from L1/L2.

• Analyse and triage SIEM alerts, performing root cause analysis and remediation.

• Act as a senior escalation point for cyber incidents, engaging technical and business stakeholders.

• Tune and optimise SOC tools, including SIEM platforms.

• Support risk-based security controls across IT and OT environments.

• Participate in an on-call rota.

Required Experience

• Strong experience in an L3 SOC or senior cyber security role.

• Hands-on SOC experience within an enterprise environment.

• In-depth knowledge of SIEM, MFA, and PAM.

• Solid understanding of IT infrastructure and networking.

• Experience writing KQL for Microsoft Sentinel.

Apply now to discuss further details.

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