Job Title: Senior Network Engineer (Network & Security Operations) Location: Home-Based (UK) Salary: £45,000 + Benefits THE COMPANY We are seeking an experienced Senior Network Engineer to join a growing network operations team, providing senior-level support across complex enterprise network and security environments. This role is focused on BAU support, troubleshooting, and operational stability, supporting critical customer infrastructure in a home-based capacity. You will act as a senior escalation point within the team, supporting secure, resilient LAN, WLAN, and network security platforms, while helping to drive service quality and continuous improvement. ROLES & RESPONSIBILITIES As a senior network engineer within the network operations function, you’ll be responsible for maintaining, supporting, and optimising live enterprise networks and security platforms. Key responsibilities include:

Providing 3rd-line support and escalation for complex network and security incidents Supporting and maintaining Cisco Security technologies, including ASA, FirePOWER, FTD & FMC, Cisco ISE (NAC, identity and policy enforcement), Cisco Umbrella and Cisco DNA Center (DNAC) Supporting enterprise LAN environments (Cisco Catalyst switching) Supporting and troubleshooting enterprise WLAN environments, including controllers and access points Diagnosing issues across routing, switching, wireless and security domains Performing configuration changes, upgrades, patching and routine maintenance Monitoring network performance, availability and security posture Creating and maintaining operational documentation, runbooks and knowledge articles Providing technical guidance and mentorship to junior engineers

SKILLS & EXPERIENCE

5+ years’ experience supporting enterprise network and security environments Strong hands-on experience with Cisco Security platforms (ASA, FirePOWER, FTD, FMC, ISE, Umbrella) Strong enterprise networking experience across LAN and routing / switching Proven experience supporting enterprise wireless (WLAN) environments Experience operating as a senior / 3rd-line engineer Excellent troubleshooting and problem-solving skills

DESIRABLE

Experience supporting SD-WAN environments Exposure to network monitoring and management tools Cisco certifications (CCNP Enterprise, CCNP Security or equivalent) Experience within managed services or enterprise operations teams

COMPANY BENEFITS You’ll be joining a collaborative, operations-focused team responsible for mission‑critical enterprise networks, working with modern Cisco networking and security technologies. The role offers long‑term technical growth, stability, and the flexibility of a fully home‑based position. JOB ID: #3504811 #J-18808-Ljbffr