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SIEM Engineer

LorienReading, Berkshire🇬🇧United KingdomPosted 17 Jul 2026

Quick Overview

Work Type
Hybrid
Schedule
Temporary/Casual
Level
Mid Senior

Job Description

Job Title: SIEM Engineer (SC Cleared)Location: Reading/HavantDuration:6 monthsDescription:

  • Lead onboarding and integration of log sources into Microsoft Sentinel to ensure complete and reliable security telemetry
  • Develop custom parsers and data transformations to normalise and enrich ingested data
  • Design and optimise KQL queries to support effective threat detection and investigation
  • Create and maintain analytic rules and detection logic aligned to emerging threats and business use cases
  • Develop Logic Apps and SOAR workflows to automate response and reduce manual effort
  • Implement CI/CD pipelines (Azure DevOps/Git) to support controlled deployment of SIEM content (rules, parsers, playbooks)
  • Automate deployment and configuration across environments to improve consistency and speed of delivery
  • Perform ongoing tuning and optimisation of detections to improve fidelity and reduce false positives

Guidant, Carbon60, Lorien & SRG - The Impellam Group Portfolio are acting as an Employment Business in relation to this vacancy.

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