Network Engineer Permanent - Up to £80,000 Farnborough - fully on site Security Clearance : It is an essential requirement for candidates to obtain UK Security Clearance (DV Level) prior to appointment. We are seeking a highly skilled Network Engineer to support cutting-edge experimentation environments for a high-profile client. This role focuses on the design, implementation, and support of advanced network architectures, working across both WAN and data centre technologies. Key Responsibilities Design and implement Wide Area Network (WAN) architectures Deploy and support Software-Defined WAN (SD-WAN) solutions Configure and troubleshoot routing protocols (OSPF, BGP) Implement VPNs and network security infrastructure (e.g. IKEv2, Next-Gen Firewalls) Produce and execute configurations from High-Level and Low-Level Designs (HLD/LLD) Deliver data centre network architectures (Spine-Leaf, EVPN, BGP, Geneve) Work with High Assurance IP Encryptors (HAIPE) Support and troubleshoot VMware NSX environments Deploy and manage whitebox networking solutions (e.g. Mellanox, Cumulus Linux, NVIDIA Networking) Implement infrastructure automation using Ansible, Terraform, or similar tools Support orchestration and scalable network deployments Required Skills & Experience Strong experience across enterprise networking principles and protocols Hands-on expertise with multi-vendor switching environments Proven ability to work with firewalls and security technologies Experience in WAN technologies and architectures Ability to operate effectively in secure/protectively marked environments Strong troubleshooting skills with the ability to work independently under pressure Cisco CCNP (or equivalent experience)