Network Architect - Extremely Competitive Salary

The Role

We are looking for a highly technical Network Engineer/Architect with strong hands-on experience across Cumulus Linux, EVPN/VXLAN and modern data centre networking.

This is a genuinely hands-on position. You'll be designing, building and troubleshooting complex network fabrics down to packet level, working across Linux networking, BGP EVPN, VXLAN and high-performance switching environments.

• Design and implement large-scale EVPN/VXLAN data centre fabrics, including L2/L3, IRB, multi-VRF and multi-tenant environments.
• Build and operate networking environments based on Cumulus Linux.
• Troubleshoot complex control-plane and data-plane issues across BGP EVPN, VXLAN, Linux Kernel networking and switching hardware.
• Work extensively with the Linux networking stack including iproute2, netlink, nftables/iptables, bridges and VRFs.
• Work with BGP and FRR at an expert level, including route targets, routing policy and scale considerations.
• Diagnose packet-level issues using tools including tcpdump, dropwatch, perf and bpftool.
• Collaborate with engineering and automation teams to build scalable and repeatable network solutions.

• Deep hands-on Cumulus Linux experience.
• Strong production experience with EVPN/VXLAN.
• Expert-level BGP knowledge.
• Strong Linux networking and packet-flow knowledge.
• Experience with FRR or similar routing stacks.
• Strong understanding of data centre switching and ASIC behaviour.
• CCIE-level Routing & Switching/Data Center knowledge; certification is not essential.
• Experience working within large-scale data centre environments.

• £100,000+