Security Monitoring & Detection Lead — SIEM & Incident Response

AJ Bell is seeking a Security Monitoring & Detection Engineering Lead to drive the technical direction of security monitoring and incident response. You will own SIEM architecture, detection engineering, and threat-informed defense, coordinating with the Cyber Defence Operations and MSSP to protect customer data and services.

You will lead complex investigations, oversee telemetry onboarding across cloud and on‑prem environments, and advance automation and playbooks while operating in a hybrid