Network Engineer (Cisco ISE & Wireless)
Contract | Hybrid | Defence Sector
Our client, a leading UK defence technology organisation, is seeking an experienced Network Engineer to support the design, implementation and optimisation of secure enterprise network infrastructure.
This is a hands-on engineering role focused on Cisco Identity Services Engine (ISE) , Cisco Catalyst 9800 Wireless LAN Controllers , secure network access and enterprise wireless technologies. You'll work on critical infrastructure projects, helping to modernise and secure highly available network environments.
Key Responsibilities
- Deploy and optimise Cisco ISE and Catalyst 9800 wireless solutions.
- Lead wireless infrastructure upgrades and migration from legacy platforms.
- Implement and support 802.1X, MAB, RADIUS, EAP-TLS/PEAP authentication and policy enforcement.
- Troubleshoot complex authentication, connectivity and wireless performance issues.
- Support high-availability deployments, upgrades, patching and lifecycle management.
- Produce technical documentation and work closely with internal stakeholders and Cisco TAC.
Required Experience
- Strong enterprise networking background covering TCP/IP, VLANs, OSPF/BGP, DHCP, DNS and network security .
- Hands-on experience with Cisco ISE including policy sets, profiling, guest/BYOD, HA deployments and upgrades.
- Expertise with Cisco Catalyst 9800 Wireless LAN Controllers , CAPWAP, WLAN configuration, RF optimisation and enterprise wireless deployments.
- Experience integrating ISE and Wireless environments, including dynamic VLAN assignment, role-based access and end-to-end authentication troubleshooting.
- Strong troubleshooting skills with tools such as Wireshark and experience working within structured change management environments.
This is an excellent opportunity to join a market leading defence organisation delivering secure, business critical infrastructure projects within a collaborative engineering environment. Candidates must be eligible to undergo UK security clearance.
