The 3rd Line Network Engineer is a senior technical position responsible for providing advanced support across complex enterprise and ISPlevel network environments. The role involves resolving escalated incidents, performing detailed diagnostics, and ensuring the stability and performance of customer networks. 

You will support a wide range of technologies across routing, switching, wireless, firewalls, and SDWAN platforms. Customers include public sector bodies, education institutions, healthcare organisations, and commercial environments with mission critical systems where reliability, accuracy, and professionalism are essential. 

You will own connectivity issues across the entire network stack, from core ISP backbone and WAN circuits right through to customer edge routers, firewalls, LAN switching, wireless networks, and any related on‑site infrastructure. 

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