Network Engineer - Defence - High Security Clearance Required

Salary: £60,000 - 65,000 per year

Requirements:

• High Security Clearance required
• Experience in several of the following areas:
• IP networking, WAN technologies and Layer 2-7 networking
• Border Gateway Protocol (BGP)
• Linux systems administration
• Kubernetes administration in production environments
• Kubernetes networking, including CNI technologies such as Cilium
• Service Mesh technologies such as Istio
• MPLS L3 VPN or cloud-native networking
• Infrastructure automation using Bash, Python, Git or similar tools
• Supporting secure and resilient network environments

Responsibilities:

• Support and improve secure cloud platform networking
• Maintain and troubleshoot cross-cluster communications within air-gapped Kubernetes environments
• Configure and support software-defined networking technologies
• Implement automation to reduce operational overhead and improve platform reliability
• Support platform upgrades, maintenance activities and incident resolution
• Participate in an on-call rota on a 1 week in 6 basis

Technologies:

• Bash
• Cloud
• Git
• Istio
• Support
• Kubernetes
• Linux
• MPLS
• Network
• Python
• Security
• VPN

More:

We are a Farnborough-based team building and supporting secure cloud infrastructure in a highly secure environment. This role combines traditional network engineering with cloud-native platform networking, supporting Kubernetes-based services operating within air-gapped infrastructure. We offer a salary of £65k plus benefits, and the role would suit an engineer who enjoys troubleshooting complex environments, automating repetitive tasks and working across both traditional networking and modern cloud-native platforms.

last updated 31 week of 2026