Network Engineer - SC Cleared in London

Network Engineer

SC Cleared

We are looking for an experienced SC Cleared Network Engineer to join a busy infrastructure and network operations team, supporting critical customer environments. This is a hands-on role requiring a strong background in enterprise networking, wireless technologies, network security, and data centre infrastructure. The successful candidate will be responsible for the installation, maintenance, troubleshooting, and optimisation of complex network environments while travelling to supported sites to resolve incidents and deliver infrastructure upgrades.

Key Responsibilities Configure, support and troubleshoot Cisco enterprise networking environments. Deploy and maintain

Cisco Wireless

and

Meraki Wi-Fi

solutions. Manage and support

Cisco ISE

for network access control and authentication. Carry out wireless site surveys and wireless leakage surveys using

Ekahau

surveying equipment. Support LAN/WAN infrastructure, including switching, routing, patching and fault diagnosis. Manage patch panels, structured cabling and cabinet documentation. Support Cisco ACI environments and undertake hardware maintenance, including battery replacements. Configure and manage firewalls including

Cisco ASA ,

Palo Alto , and

Meraki , including VPN configuration and access control policies. Administer and troubleshoot

F5 Load Balancers (Aqua) . Configure, manage and maintain

Catapan encryptors , including keying processes. Monitor network performance using

SolarWinds . Travel to customer sites to remediate faults involving firewalls, routers, switches and Catapan devices. Manage

Cisco Smart Licensing . Diagnose and resolve complex network incidents while ensuring minimal disruption to business operations. Produce accurate technical documentation and maintain asset records.

Essential Skills & Experience Active

SC Clearance

(mandatory). Strong Cisco networking experience across enterprise environments. Cisco Wireless and Meraki Wi-Fi deployment and support. Cisco ISE administration. LAN/WAN technologies including routing, switching and structured cabling. Physical installation of networking equipment, racking and patching. Cisco ACI experience. Firewall administration including Cisco ASA, Palo Alto and Meraki. VPN technologies and network access control. F5 Load Balancing. SolarWinds monitoring and diagnostics. Cisco Smart Licensing. Excellent fault-finding and network troubleshooting skills. Willingness to travel regularly to customer sites across the UK. Full UK driving licence.

Desirable Skills Knowledge of Avaya telephony systems. Experience managing Catapan encryptors and associated security procedures. Relevant Cisco certifications (CCNA, CCNP or equivalent). Experience working within ITIL service management environments.

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