DV-Cleared Security Engineer for Defence Systems (Hybrid)

Copello; Colne; Hybrid; GBP 60,000 - 90,000; Full time

Job summary

Copello is seeking a DV-cleared Security Engineer for a hybrid role in Cambridgeshire. You will join a high-profile secure programme and work with the Security Engineering Lead to implement, maintain and improve critical security controls across Defence environments.

The position involves coordinating across Windows, Linux, virtualization, and network security, and supporting accreditation, testing and protective monitoring activities as part of a long‑term contract.

Qualifications

• DV clearance required for this role.
• Experience in security engineering on Defence environments.
• Knowledge of Windows, Linux, virtualization and networking.

Responsibilities

• Implement and maintain security tooling and technical controls
• Develop and maintain security baselines and secure configurations
• Assess vulnerabilities and implement risk mitigation
• Support SIEM, protective monitoring and security logging
• Work across Windows, Linux, virtualization and endpoint security
• Support security accreditation, testing and verification activities
• Produce technical/design documentation and security artefacts

Skills

DV clearance

Security engineering

Windows security

Linux security

Threat assessment

Tools

SIEM

Firewalls

Networking security

PKI

Job description

Copello is seeking a DV-cleared Security Engineer for a hybrid role in Cambridgeshire. You will join a high-profile secure programme and work with the Security Engineering Lead to implement, maintain and improve critical security controls across Defence environments.

The position involves coordinating across Windows, Linux, virtualization, and network security, and supporting accreditation, testing and protective monitoring activities as part of a long‑term contract.