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SIEM Detection Engineer
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Harvey Nash
Reading, Berkshire, Berkshire; South East England; England, United Kingdom Permanent
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Job Description
SIEM Detection 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
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Job Overview
- Designation: SIEM Detection Engineer
- Offered Salary: Not specified
- Post Date: August 9, 2026
- Country: United Kingdom
- Job Type: Permanent
Harvey Nash
Reading, Berkshire, Berkshire; South East England; England, United Kingdom Permanent
Apply for job
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
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Need Assistance with Your Resume/CV?
Our experts will craft a compelling resume that is optimized for acceptance across your desired Applicant Tracking Systems (ATS).
Click Here For Help
Job Overview
- Designation: SIEM Detection Engineer
- Offered Salary: Not specified
- Post Date: August 9, 2026
- Country: United Kingdom
- Job Type: Permanent
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