Cyber Security Officer (Interim)
London
Senior Cyber Security Engineer (Contract)
Hybrid | 6-Month Contract | Start: ASAP
Day Rate: 500p/d inside
The Opportunity
We're looking for a Senior Cyber Security Engineer to join a forward-thinking public sector environment at a critical point in its cyber maturity journey.
With a newly implemented outsourced Security Operations Centre (SOC) powered by Splunk and CrowdStrike, this role is key to maximising both investment and capability. You'll act as the senior technical lead-optimising tooling, strengthening detection and response, and upskilling the internal team.
This is a hands-on, high-impact role suited to someone who can hit the ground running and elevate an evolving security function.
Key Responsibilities
Endpoint Security Leadership: Own deployment, configuration, and optimisation of CrowdStrike Falcon
SIEM Optimisation: Partner with the SOC to enhance Splunk dashboards, alerts, and data models
Incident Response: Act as escalation point for high-priority incidents, driving rapid containment
Threat Hunting: Proactively identify hidden threats using advanced queries and telemetry
Automation (SOAR): Build workflows to streamline response and reduce manual effort
Capability Building: Upskill internal teams across CrowdStrike, Splunk, and security analysis
Required Experience
5+ years in Cyber Security Engineering or SOC (Tier 3 level)
Deep hands-on experience with CrowdStrike Falcon (Prevent, Insight, Discover)
Strong Splunk expertise, including SPL and Enterprise Security (ES)
Solid understanding of:
Network protocols
Cloud security (AWS/Azure)
MITRE ATT&CK frameworkAdditional desirable experience:
Vulnerability Assessment tools
Penetration Testing / Web Application Testing exposure
Security policy and standards development
Certifications (Desirable)
Cyber Security:
CompTIA Security+, Network+, CySA+, GSEC
CISSP, GCIH, GCIA, CCSPCrowdStrike (ideally 2+):
CCFA (Falcon Administrator)
CCFR (Falcon Responder)
CCSE (SIEM Engineer)Splunk:
Splunk Certified Cybersecurity Defense Engineer (preferred)
Why Apply?
Shape and optimise a modern SOC capability
Work with best-in-class tools (CrowdStrike & Splunk)
High-impact role with visibility across the organisation
Opportunity to leave a lasting legacy through capability uplift and knowledge transfer
If you're a senior cyber specialist who thrives in hands-on, technically challenging environments and enjoys building capability as well as solving problems, this is worth a conversation
Eden Brown Synergy is an equal opportunities employer.
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