Network Engineer - Aruba

Salary: £? - ? per year

Requirements:

• 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

Responsibilities:

• 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

More:

We are seeking an experienced Network Engineer with strong HPE Aruba expertise to support the design, implementation and management of enterprise network infrastructure. The role supports highly available LAN and WLAN environments, network security services, and infrastructure refresh, migration and transformation projects. This is a six-month contract based in Kent, with two days per week onsite, paying up to £585 per day inside IR35.

last updated 45 week of 2026