Senior Network Administrator (UK)

The role

You will own the design, security, and uptime of the network supporting critical national security missions. This includes designing, deploying, and maintaining secure networks across classified and unclassified environments.

What you will do

• Design, deploy and maintain secure networks across classified and unclassified environments
• Run Palo Alto firewalls (PAN-OS, Panorama, GlobalProtect) and Aruba switching, wireless and ClearPass
• Implement segmentation, zero-trust and policy enforcement
• Monitor performance, troubleshoot complex issues and support incident response
• Handle vulnerability remediation, RMF/STIG compliance and system accreditation (ATO)

Required qualifications

• 8+ years in network administration in enterprise or DoD environments
• Hands-on Palo Alto experience (NGFW, Panorama, VPNs, threat prevention)
• Hands-on Aruba experience (switching, wireless, ClearPass NAC)
• Strong TCP/IP, BGP, OSPF, VLANs and VPNs
• Experience in classified environments (SIPR/NIPR or equivalent)
• Familiarity with RMF, NIST 800-53 and STIGs
• Active UK SC clearance (DV preferred), or eligibility to obtain SC

Nice to have

• PCNSE or higher
• Aruba certifications (ACMP, ACDX, etc.)
• Network automation (Python, Ansible, APIs)
• Cloud networking (AWS GovCloud, Azure Government)
• Zero Trust / SASE, Zscaler ZIA / ZPA or similar
• High-availability or mission-critical systems background
• Defence contractor or rapid-deployment experience

Benefits

• Private medical, dental and vision, 100% paid by the company for you and your dependents
• 5% pension match
• Pre-IPO stock options
• Relocation assistance
• Annual bonuses (coming soon)
• Fully stocked kitchen
• Free daily lunch when on-site

Before you apply

• Active UK SC clearance (DV preferred), or eligibility to obtain SC

About the company

CHAOS Industries is a defense technology company, founded in 2022, that has raised $1 billion from investors including 8VC, Accel and Valor Equity Partners.