Company: Marks and Spencer
Location: London
Job Description:
Marks & Spencer is seeking a Principal EDR & XDR Engineer to lead the engineering, optimisation and strategic development of our EDR/XDR platforms. You will act as SME for Microsoft Defender XDR and CrowdStrike Falcon, ensuring endpoint visibility, threat detection and incident response across large-scale environments.
Work closely with Security Operations, Incident Response and Threat Intelligence teams to develop advanced detections and improve platform performance while aligning with MITRE
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Posted: October 21st, 2026