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# Network Engineer - Aruba

- **Company:** CBS Butler Limited
- **Location:** Redhill, United Kingdom
- **Experience:** Expert
- **Salary:** £59,729
- **Contract:** Temporary contract
- **Skills:** IEEE 802.1X, Wireless LAN, Amazon Web Services, User Authentication, Microsoft Azure, Border Gateway Protocol, Cloud Computing, Complex Networks, Dynamic Host Configuration Protocol, Monitoring of Systems, Python (Programming Language), Network Security, Network Troubleshooting, Network Layer, Network Control, Network Monitoring, Routing, Packet Analyzer, Open Shortest Path First (OSPF), Paessler Router Traffic Grapher, Ansible, SAP Sales and Distribution, TCP/IP, Wireshark, Virtual Local Area Networks, Wireless Access Point, Computer Network Technologies, Grafana, ARUBA, HybridCloud, SC Clearance, SolarWinds (Software), Wireless Technologies, TACACS+ Protocol, Restful APIs, Open Network Automation Platform, Splunk
- **Published:** November 10, 2026
- **Apply:** https://www.adzuna.co.uk/jobs/details/5959167996

## About the Role

* Active SC clearance and sole UK national status
 * Minimum 5 years experience supporting enterprise networking environments
 * Strong hands-on experience with HPE Aruba networking technologies, including Aruba CX and ArubaOS switching
 * Extensive knowledge of Aruba wireless solutions, access points and mobility controllers
 * Practical experience administering Aruba Central
 * Strong experience implementing and managing Aruba ClearPass
 * Good understanding of NAC, 802.1X, RADIUS, TACACS+ and certificate-based authentication
 * Strong networking knowledge, including TCP/IP, VLANs, routing, switching, BGP, OSPF, DNS and DHCP
 * Experience troubleshooting Layer 2 and Layer 3 network issues
 * Knowledge of network security, segmentation and high-availability architectures
 * Experience working within ITIL-based service management environments
 * Desirable: experience with Aruba AirWave and SD-Branch; large-scale campus and multi-site enterprise network deployments; Defence, Government, CNI or other highly regulated environments; network automation using Python, Ansible or REST APIs; hybrid cloud networking across Azure or AWS; monitoring tools such as SolarWinds, PRTG, Splunk and Grafana; and relevant Aruba certifications such as ACSA or ACMA
 * Strong analytical and troubleshooting skills; ability to work independently, manage complex network incidents, and engage with technical teams and stakeholders

## Description

* Design, configure, implement and support HPE Aruba network infrastructure
 * Manage and maintain Aruba CX and ArubaOS switching environments
 * Configure and support enterprise wireless networks, including Aruba access points and mobility controllers
 * Administer and optimise Aruba Central for network monitoring, management and reporting
 * Implement and manage Aruba ClearPass, including 802.1X, RADIUS, TACACS+ and certificate-based authentication
 * Support network refresh, migration and transformation projects
 * Maintain network availability, resilience, performance and security across LAN and WLAN environments
 * Troubleshoot complex network issues involving routing, switching, wireless connectivity, authentication and network performance
 * Conduct packet analysis and root-cause investigations using tools such as Wireshark
 * Undertake software upgrades, patching and network lifecycle management
 * Produce technical documentation and contribute to continuous service improvement

Technologies:

 * AWS
 * Ansible
 * Aruba
 * Azure
 * Cloud
 * Grafana
 * Support
 * ITIL
 * LAN
 * Network
 * Python
 * REST
 * Security
 * Splunk
 * TCP/IP
 * WLAN