SOC Architect (Detection Engineering & Technical Lead)
London (onsite 4 days/week)
3 months - with extensions
Inside IR35 - Umbrella only
Active SC cleared or eligible candidates will be considered
Purpose: Technical owner of SIEM/XDR architecture, responsible for migrating LogRhythm to Sentinel, migrating AV to MDE, building detections, integrations, and automation, and shaping the SOC technology roadmap.
Key Requirements:
- Deep hands-on expertise with Microsoft Sentinel (KQL, analytic rules, UEBA, SOAR).
- Proven experience migrating from LogRhythm or another legacy SIEM to Sentinel.
- Strong experience building and tuning detections mapped to MITRE ATT&CK.
- Experience migrating Trend Micro → Microsoft Defender for Endpoint.
- Knowledge of integrating Trellix/McAfee, CyberArk, identity logs, cloud logs, and endpoint telemetry.
- Ability to design ingestion pipelines, schemas, normalisation and enrichment.
- Strong threat hunting and detection engineering background.
- SC clearance desirable.
Profile needed: Senior SIEM/XDR engineer capable of architecting, building, and optimising a modern Microsoft-led SOC stack.

