About this role
Salary: £45,000 - 50,000 per year
Requirements: We are only able to represent individuals who are ex-military.Extensive experience designing, implementing and supporting enterprise network infrastructure.Expert knowledge of routing and switching technologies.Strong troubleshooting, analytical and diagnostic skills.Excellent customer-facing communication and stakeholder management skills.Experience working within secure or cryptographic environments.Strong knowledge of BGP, OSPF, VLANs, VRRP/HSRP, Spanning Tree, Quality of Service (QoS), Multicast, IPv4/IPv6, and high availability networking.Hands-on experience with NVIDIA Mellanox Ethernet switches running Cumulus Linux.Experience with modern data centre networking technologies including EVPN, VXLAN, MLAG, and leaf-spine architectures.Eligibility to obtain and maintain UK Developed Vetting (DV) clearance and STRAP access.Full UK driving licence and willingness to travel extensively throughout the UK.Desirable: Infrastructure as Code using Ansible.Desirable: Linux systems administration.Desirable: VMware ESXi administration.Desirable: Network automation and configuration management.Desirable: Monitoring, logging and network performance analysis tools.Desirable: Git-based configuration management.Desirable: Experience supporting secure or air-gapped environments.Desirable: Relevant certifications such as CCNP Enterprise, CCIE Enterprise Infrastructure, NVIDIA Networking, or equivalent. Responsibilities: Design, implement and support enterprise network infrastructure.Deploy, configure and maintain high-performance routing and switching environments.Configure and support NVIDIA Mellanox Ethernet switches running Cumulus Linux, including MSN2100, MSN2201 and MSN3420 platforms.Install, configure and support Cisco Catalyst 9300 switching platforms.Configure, administer and troubleshoot Cisco Firepower 2100 Series appliances running Firepower Threat Defence (FTD).Deliver customer site installations, upgrades, preventative maintenance and technical health checks.Diagnose and resolve complex routing, switching, firewall and connectivity issues.Produce technical documentation including implementation plans, network diagrams and operational procedures.Work directly with customers to understand technical requirements and deliver effective networking solutions.Participate in planned maintenance windows and occasional out-of-hours activities where required. Technologies: AnsibleCiscoEthernetFirewallGitSupportLinuxNetworkVMwareWindowsSecurity More:
We are an established and growing defence technology company delivering secure, high-performance networking solutions to UK Defence customers. This is a predominantly field-based role supporting the deployment, maintenance and optimisation of enterprise network infrastructure across secure customer environments. The role involves frequent travel to customer sites throughout the UK, primarily across the Midlands and surrounding areas, with mileage allowance provided for business travel. We offer a flexible working culture, 25 days annual leave with the option to purchase more, a 10% employer pension contribution, health cash plan, benefits platform, ongoing training and professional development, two annual bonus opportunities subject to company performance, enhanced family leave, recruitment referral bonus, reservist leave, modern office facilities, complimentary refreshments, smart casual dress policy, free parking or parking reimbursement, and company social events and annual training days.
last updated 29 week of 2026