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Senior Network Administrator (Palo Alto / Aruba) - Defence Technology

CHAOS Industries • United Kingdom
Relocation
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AI Summary

Own and secure classified/defence networks for national security missions, designing, deploying, and maintaining Palo Alto and Aruba solutions. Requires 8+ years in network administration, Palo Alto/Aruba expertise, and UK SC clearance. Focus on zero-trust, compliance, and incident response.

Key Highlights
Owns secure network architecture and operations for UK defence programme
Requires 8+ years in network administration with Palo Alto/Aruba expertise
Active UK SC clearance (DV preferred) or eligibility mandatory

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Key Responsibilities
Design, deploy, and maintain secure networks across classified/unclassified environments
Manage Palo Alto firewalls (PAN-OS, Panorama, GlobalProtect) and Aruba infrastructure
Implement zero-trust policies, segmentation, and compliance (RMF/STIG, NIST 800-53)
Technical Skills Required
Palo Alto (PAN-OS, Panorama, GlobalProtect) Aruba (switching, wireless, ClearPass) Network security (zero-trust, segmentation, RMF/STIG compliance)

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Benefits & Perks
Private medical, dental, and vision (100% paid for you and dependents)
5% pension match
Pre-IPO stock options and relocation assistance

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Nice to Have
PCNSE or higher certification
Aruba certifications (ACMP, ACDX)
Network automation (Python, Ansible, APIs)

Job Description

Own the design, security, and uptime of the network that supports critical national security missions.

What you’ll 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)

You’re a fit if you have:

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Job Overview
Posted Nov 04, 2026
Employment Full-time
Experience Mid-Senior level
Location United Kingdom
Category Networking
Company CHAOS Industries
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