CareerAddict

SIEM Engineer

Harvey Nash Plc

Posted on Jun 30, 2026 by Harvey Nash Plc
Reading, Berkshire, United Kingdom
IT
Immediate Start
£600 - £700 Daily
Contract/Project

SIEM Engineer - (Havant/Reading/Hybrid) - Inside IR35

Day Rate - up to £700

Duration - 6 months

Harvey Nash's Client have a requirement for a SIEM Engineer, you must be SC Cleared to commence this post.

You will support the team in:

  • 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

Reference: 3130717415

https://jobs.careeraddict.com/post/113481155
Harvey Nash Plc

SIEM Engineer

Harvey Nash Plc

Posted on Jun 30, 2026 by Harvey Nash Plc

Print
Reading, Berkshire, United Kingdom
IT
Immediate Start
£600 - £700 Daily
Contract/Project

SIEM Engineer - (Havant/Reading/Hybrid) - Inside IR35

Day Rate - up to £700

Duration - 6 months

Harvey Nash's Client have a requirement for a SIEM Engineer, you must be SC Cleared to commence this post.

You will support the team in:

  • 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
Print

Reference: 3130717415

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