About this role
Salary: £? - ? per year
Requirements: Strong experience in enterprise network engineering, including design, implementation, administration, and troubleshootingExcellent understanding of IP networking fundamentals, including TCP/IP, subnetting, routing, and address managementHands-on experience configuring and supporting routing protocols, particularly OSPF and BGPAdvanced knowledge of enterprise networking equipment, including routers, switches, and firewallsExperience with enterprise networking technologies such as Cisco Nexus, Cisco IOS-XE, Leaf-Spine architectures, and VXLANStrong understanding of network security technologies, including firewalls, IDS/IPS, AAA platforms, and secure network segmentationExperience implementing and managing QoS policies and traffic optimisation techniquesAbility to produce and maintain technical documentation, including LLDs, build guides, and operational proceduresStrong analytical and troubleshooting skills with a methodical approach to problem solvingExcellent communication and stakeholder management skillsRelevant industry certification such as CCNP Enterprise or an equivalent networking certificationMust hold or be eligible to obtain UK Security Clearance (SC)Advantageous: Experience in Defence, Government, National Security, or other highly regulated environments; knowledge of defence-grade networks and secure gateway architectures; experience supporting large-scale, virtualised, or software-defined infrastructure; familiarity with Agile delivery methodologies and Atlassian tools such as JIRA and Confluence; experience designing and managing secure multi-tenanted network architectures; exposure to networking automation and infrastructure-as-code; additional certifications such as CCIE, VMware VCP-NV, or Chartered Engineer (CEng); knowledge of cloud networking and hybrid infrastructure Responsibilities: Design, implement, and support enterprise network infrastructure across physical and virtual environmentsConfigure and manage routers, switches, and firewallsDeliver network architectures, including Leaf-Spine networks, software-defined networking, and virtualised networking platformsConfigure, maintain, and troubleshoot dynamic routing protocols, including OSPF and BGPImplement and support core network services, including IP addressing, subnetting, VLANs, QoS, and traffic managementDeploy and manage overlay networking technologies such as VXLANImplement secure networking solutions, including firewall policies, IDS/IPS technologies, and secure communicationsSupport network integration, testing, validation, and commissioning activitiesProduce and maintain technical documentation, including Low-Level Designs, network build guides, configuration standards, and operational runbooksWork with Service Management teams to troubleshoot, investigate, and resolve incidents and service issuesConduct root cause analysis and recommend improvements to increase service stabilityContribute to automation, standardisation, and continuous improvement across the network estateEnsure solutions align with programme standards, governance requirements, and security policies Technologies: AtlassianCloudCiscoConfluenceFirewallSupportJIRANetworkNexusSecurityTCP/IPVMwareiOS More:
We are seeking an experienced Network Engineer for a high-profile programme delivering critical infrastructure capabilities in a secure, complex technical environment. The role supports enterprise-scale, mission-critical systems and services throughout the project lifecycle, from design and build through integration, testing, and operational support. This is an opportunity to deliver resilient networking solutions in a highly regulated environment. The position is based in the UK, with hybrid working and on-site attendance as required. The rate is up to £675 per day via an approved umbrella company.
last updated 41 week of 2026