Frontier Resourcing
Network Engineer
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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.
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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.
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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.
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