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# Network Engineer - SC Clearance

- **Company:** Experis
- **Location:** Corsham, UK
- **Salary:** £57,739.0
- **Contract:** Permanent contract
- **Skills:** Agile Methodology, Confluence, JIRA, Border Gateway Protocol, Cloud Computing, System Configuration, IP Addressing, Internet Protocol, Intrusion Detection Systems, Subnetting, Network Security, Network Architecture, Routing, Cisco Nexus Switches, Open Shortest Path First (OSPF), TCP/IP, Virtual Local Area Networks, Network Routers, Dynamic Routing, Computer Network Technologies, Virtual Environment, Firewalls (Computer Science), SC Clearance, SDN Network, Atlassian Tools, Enterprise Integration, Firewall Services Module, Cisco, Vmware
- **Published:** October 16, 2026
- **Apply:** https://www.adzuna.co.uk/jobs/details/5928850994

## About the Role

* Strong experience in enterprise network engineering, including design, implementation, administration, and troubleshooting
 * Excellent understanding of IP networking fundamentals, including TCP/IP, subnetting, routing, and address management
 * Hands-on experience configuring and supporting routing protocols, particularly OSPF and BGP
 * Advanced knowledge of enterprise networking equipment, including routers, switches, and firewalls
 * Experience with enterprise networking technologies such as Cisco Nexus, Cisco IOS-XE, Leaf-Spine architectures, and VXLAN
 * Strong understanding of network security technologies, including firewalls, IDS/IPS, AAA platforms, and secure network segmentation
 * Experience implementing and managing QoS policies and traffic optimisation techniques
 * Ability to produce and maintain technical documentation, including LLDs, build guides, and operational procedures
 * Strong analytical and troubleshooting skills with a methodical approach to problem solving
 * Excellent communication and stakeholder management skills
 * Relevant industry certification such as CCNP Enterprise or an equivalent networking certification
 * Must 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

## Description

* Design, implement, and support enterprise network infrastructure across physical and virtual environments
 * Configure and manage routers, switches, and firewalls
 * Deliver network architectures, including Leaf-Spine networks, software-defined networking, and virtualised networking platforms
 * Configure, maintain, and troubleshoot dynamic routing protocols, including OSPF and BGP
 * Implement and support core network services, including IP addressing, subnetting, VLANs, QoS, and traffic management
 * Deploy and manage overlay networking technologies such as VXLAN
 * Implement secure networking solutions, including firewall policies, IDS/IPS technologies, and secure communications
 * Support network integration, testing, validation, and commissioning activities
 * Produce and maintain technical documentation, including Low-Level Designs, network build guides, configuration standards, and operational runbooks
 * Work with Service Management teams to troubleshoot, investigate, and resolve incidents and service issues
 * Conduct root cause analysis and recommend improvements to increase service stability
 * Contribute to automation, standardisation, and continuous improvement across the network estate
 * Ensure solutions align with programme standards, governance requirements, and security policies

Technologies:

 * Atlassian
 * Cloud
 * Cisco
 * Confluence
 * Firewall
 * Support
 * JIRA
 * Network
 * Nexus
 * Security
 * TCP/IP
 * VMware
 * iOS, 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.