Managing Security Engineer (DV Cleared)
Hemel Hempstead - 5 days onsite
£500-£700 per day Inside IR35
We're seeking a DV-cleared Managing Security Engineer to lead the design, implementation, and optimisation of security monitoring platforms feeding into a central SOC. This is a hands-on leadership role focused on building scalable SIEM solutions and strengthening client security posture.
Key Responsibilities
Lead design and deployment of security monitoring tools (Elastic & Splunk)
Build and optimise large-scale log ingestion pipelines and data models (ECS/CIM)
Develop and tune detection rules using KQL, EQL, and SPL
Drive detection engineering lifecycle aligned to MITRE ATT&CK
Implement automation, CI/CD, and Infrastructure as Code for SIEM platforms
Ensure platform performance, scalability, and resilience (HA/DR, clustering)
Collaborate with stakeholders to assess risk and deliver security improvementsEssential Skills & Experience
Proven leadership in Security Engineering and client-facing environments
Strong hands-on expertise with Elastic Stack and Splunk (Enterprise/ES)
Advanced knowledge of SIEM operations, detection engineering, and RBA
Experience with large-scale data ingestion, enrichment, and pipeline design
Familiarity with automation tools, SOAR, Terraform/Ansible, and CI/CD
Excellent communication, stakeholder management, and problem-solving skillsThis is a great opportunity to play a key role in delivering high-impact cybersecurity solutions while remaining technically hands-on.