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SIEM Engineer

Job in Reading, Berkshire, RG317, England, UK
Listing for: Lorien
Contract position
Listed on 2026-07-17
Job specializations:
  • IT/Tech
    Cybersecurity
Salary/Wage Range or Industry Benchmark: 650 - 700 GBP Daily GBP 650.00 700.00 DAY
Job Description & How to Apply Below

Job Title: SIEM Engineer (SC Cleared)Location:
Reading/Havant
Duration: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 Dev Ops/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, Carbon
60, Lorien & SRG - The Impellam Group Portfolio are acting as an Employment Business in relation to this vacancy.

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