Network Engineer - Defence - High Security Clearance Required

Network Engineer - Defence
High Security Clearance Required
£65k + benefits
Farnborough based
This role sits within a team responsible for building and supporting secure cloud infrastructure in a highly secure environment.

The position combines traditional network engineering with cloud-native platform networking, supporting Kubernetes-based services operating within air-gapped infrastructure. You'll work across both physical and virtual networking layers, helping maintain secure, resilient and highly available platforms.

Key responsibilities include:

• Supporting and improving secure cloud platform networking
• Maintaining and troubleshooting cross-cluster communications within air-gapped Kubernetes environments
• Configuring and supporting software-defined networking technologies
• Implementing automation to reduce operational overhead and improve platform reliability
• Supporting platform upgrades, maintenance activities and incident resolution
• Participating in an on‑call rota (1 week in
  6)

The team is looking for engineers with experience in several of the following areas:

• IP networking, WAN technologies and Layer 2-7 networking
• Border Gateway Protocol (BGP)
• 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

This role would suit a Network Engineer who enjoys troubleshooting complex environments, automating repetitive tasks and working across both traditional networking and modern cloud‑native platforms.