Salary: £110,000 - 120,000 per year Requirements: Secure environment experience (Defence/MOD/government etc) Network Engineering with WAN/LAN experience Proficient in networking routing protocols, particularly OSPF Experience with VPNs and Network Security Ability to create High-Level Designs (HLD) and Low-Level Designs (LLD) Experience with Data Centre network architecture Familiarity with high assurance IP encryptors Knowledge of infrastructure automation and Whitebox network infrastructure Experience with NSX Cisco CCNP certification Experience in cryptology and cryptography (preferred) Responsibilities: Collaborate with a team of technology professionals on a Defence/MOD project Build network solutions from scratch Ensure network security and compliance in a secure environment Develop and implement network architecture and design Perform troubleshooting and optimization of network services Create and maintain documentation for network designs and configurations Participate in security clearance processes as required Technologies: Cryptography Cisco LAN Network Security More: We are a Defence consultancy located in Farnborough, seeking a specialist network engineer for a contract position outside IR35. This role involves contributing to an essential project within a secure environment among a talented team of professionals. Successful candidates will need to be security cleared (SC Level) prior to appointment. We offer competitive remuneration and an engaging work environment focused on innovative solutions in network engineering. last updated 5 week of 2026