Splunk Security Specialist SME -Contract
Splunk Security Specialist - Contract - Needed - 6 Months - London based - Financial services experience needed.
Build detections. Break threats. Level up SOCs.
We need Splunk Specialist to lead end‑to‑end Splunk ES engagements for enterprise clients. This is a delivery first contract role, designing detections, tuning alerts, and building dashboards that SOC teams actually use.
You'll sit inside a modern Security Practice covering MDR, Incident Response, Vulnerability Management, Pen Testing and Security Advisory, working on meaningful security problems - not BAU dashboard babysitting.
What You'll Do
* Design and deliver Splunk ES from requirements to production
* Build high-quality detections, correlation searches and risk-based alerting
* Write sharp SPL for threat detection and hunting
* Map detections to MITRE ATT&CK
* Onboard, normalise and enrich logs across Windows and Linux
* Create clear, operational dashboards for SOC teams
* Support automation and orchestration initiatives (SOAR exposure a plus)
* Use Python and PowerShell to automate and enrich workflows
* Work closely with SOC, IR and engineering teams
* Coach junior engineers when needed - no people management fluff
What We're After
* Strong hands-on Splunk Enterprise Security experience
* Proven delivery on complex, client-facing cyber projects
* Solid SOC knowledge (IAM, incident response, detection engineering)
* Sharp analytical mindset
* Confident stakeholder communication
* Eligibility to work in the UK
Nice to Have
* SOAR or UEBA experience
* Large-scale cyber or infrastructure programme experience
* Enjoys knowledge sharing and mentoring
Proper hands-on Splunk work
* High-impact projects
* Trusted delivery ownership
* Real influence on detection strategy
GCS is acting as an Employment Business in relation to this vacancy.
Splunk Security Specialist SME -Contract
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