Defence Network Engineer – SC/DV Cleared

CBSbutler Holdings Limited trading as CBSbutler; West of England; On-site; GBP 88,000 - 95,000; Full time

Job summary

CBSbutler is seeking an experienced Network Engineer to support a highly secure defence network environment. You will ensure network availability, implement architectural changes and support mission-critical services within a specialist team.

The role requires strong networking and firewall expertise, with responsibility for design, security and documentation in a high-assurance setting. You will collaborate with defence stakeholders and international partners.

Qualifications

• Extensive professional network engineering experience.
• CCNP or equivalent networking certification.
• Palo Alto firewalls experience and strong firewalling skills.
• Experience with multi-vendor networking environments across complex data centres.
• Experience operating in secure defence or government environments.

Responsibilities

• Operate and maintain a complex secure network environment, including gateways and cross-connects to international networks.
• Monitor network performance, identify outages and ensure SLAs are met.
• Design and implement network changes aligned with project requirements.
• Provide technical guidance to delivery teams and senior stakeholders.
• Collaborate with defence stakeholders and international partners on network initiatives.
• Manage perimeter security and internet-facing security policies.
• Support software-defined networking and inter-enclave firewalling.
• Contribute to service provider and data centre network solutions.
• Develop technical documentation using Confluence.

Skills

Palo Alto

SC / DV clearance

CCNP or equivalent

Firewalling

Multi-vendor networking

Cryptographic technologies

Tools

Confluence

Job description

CBSbutler is seeking an experienced Network Engineer to support a highly secure defence network environment. You will ensure network availability, implement architectural changes and support mission-critical services within a specialist team.

The role requires strong networking and firewall expertise, with responsibility for design, security and documentation in a high-assurance setting. You will collaborate with defence stakeholders and international partners.