DV Cleared Cyber Security Engineer: SOC & SIEM Expert

Lorien; Stevenage; On-site; GBP 105,000 - 149,000; Full time

Job summary

Lorien in Stevenage is seeking an experienced Cyber Security Engineer on a 2-year contract, onsite 5 days a week. You will maintain, evolve, and optimize a complex cyber security capability, ensuring availability, resilience, and continuous improvement of critical security technologies across enterprise environments.

This role requires DV clearance (live SC acceptable to start) and hands-on skills in SIEM, automation, scripting, and security tooling, with strong Windows/Linux and API experience,

Qualifications

• Live SC or DV Clearance required.
• Strong scripting and automation skills (PowerShell, Python, RegEx).
• Experience with SIEM and security monitoring platforms.
• Experience with APIs/HTTP/S and JSON data.
• Windows and Linux environments, AD/LDAP/IIS familiarity.

Responsibilities

• Lead maintenance and enhancement of SOC toolsets.
• Ensure health and resilience of security technologies across environments.
• Manage security platform integrations and data feeds.
• Tune alerts, model data, and manage logs for visibility.
• Implement SIEM, threat detection and monitoring tools.
• Develop and maintain automation scripts and playbooks.
• Perform patching, certificate updates, and lifecycle activities.
• Support investigations with advanced queries and scripting.
• Guide end-of-life and end-of-support roadmaps.
• Collaborate with teams to minimise disruption and improve performance.

Skills

PowerShell

Python

Regex

DV/SC Clearance

APIs/HTTP

SIEM

Automation scripts

Windows

Linux

AD/LDAP/IIS

VMware/Hyper-V

Playbooks

Threat detection

Security analytics

Job description

Lorien in Stevenage is seeking an experienced Cyber Security Engineer on a 2-year contract, onsite 5 days a week. You will maintain, evolve, and optimize a complex cyber security capability, ensuring availability, resilience, and continuous improvement of critical security technologies across enterprise environments.

This role requires DV clearance (live SC acceptable to start) and hands-on skills in SIEM, automation, scripting, and security tooling, with strong Windows/Linux and API experience,