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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Network Operations Engineer L3 - **Company:** Wifinity Limited - **Location:** London, UK (Remote available) - **Experience:** Experienced - **Salary:** £42,696.0 - **Contract:** Permanent contract - **Skills:** Border Gateway Protocol, Complex Networks, Computer Networks, System Configuration, Virtual Private Networks (VPN), Multi-protocol Systems, Network Security, Network Layer, Network Architecture, Routing, Network Administration, Open Shortest Path First (OSPF), Wide Area Networks, Wireless Networks, Zabbix, Wi-Fi Technology, Computer Network Operations, Firewalls (Computer Science), SC Clearance, Fortinet, Network Optimization - **Published:** August 11, 2026 - **Apply:** https://www.adzuna.co.uk/jobs/details/5835849115 ## About the Role You will be a highly motivated and technically driven engineer with the ability to lead complex investigations and remain composed under pressure. You enjoy solving challenging technical problems, continuously developing your knowledge and supporting others to grow. You take ownership of issues from initial investigation through to resolution, communicate effectively with both technical and non-technical stakeholders, and always strive to deliver an exceptional customer experience. Essential * Proven experience working within an ISP, MSP or Enterprise Network Operations environment. * Advanced knowledge of TCP/IP networking, Layer 2 and Layer 3 switching and routing. * Strong experience with enterprise wireless technologies and Wi-Fi troubleshooting. * Experience supporting routing protocols including OSPF and BGP. * Experience configuring and troubleshooting enterprise firewalls, VPNs and network security. * Experience supporting WAN technologies including leased lines, MPLS or similar connectivity solutions. * CCNA or equivalent experience * Minimum 3-5 years experience within a Network Operations or Network Engineering role. Desirable * Experience with MikroTik, Fortinet, Ruckus, Cambium and TP-Link technologies. * Experience with monitoring platforms such as Zabbix and network management platforms such as NetBox. * Experience designing, implementing and supporting highly available network solutions. * Experience supporting Service Transition and large-scale customer deployment projects. * CCNP or other networking certifications * SC clearance or the ability to obtain ## Description As an L3 Network Engineer within our Network Operations Centre (NOC), you will act as the highest technical escalation point for complex network incidents, major outages and problem management across our estate. You will play a critical role in maintaining the stability, resilience and performance of our wired, wireless and WAN infrastructure while supporting the delivery of strategic customer projects. You will have the opportunity to work with a broad range of enterprise networking technologies whilst mentoring engineers and influencing the future direction of our network. This role plays an integral part in ensuring operational excellence, improving customer experience and supporting the continued growth of the business. Key Areas of Focus: The team is responsible for providing the highest level of technical support across Network Operations and plays an important role in maintaining the stability, security and continuous improvement of Wifinity's nationwide network infrastructure. Your role will consist of the following responsibilities: * Act as the highest technical escalation point for complex network incidents, major incidents and problem investigations. * Lead technical troubleshooting across enterprise wired, wireless and WAN infrastructure. * Own Root Cause Analysis (RCA), Post Incident Reviews (PIRs) and technical recommendations following major incidents. * Deliver complex project implementation, configuration and migration activities across the network estate. * Provide technical leadership and mentoring to L2 Network Engineers, Technical Services and Field Engineers. * Develop and maintain technical standards, operational procedures, automation and best practice documentation. * Work with internal teams, vendors and third-party suppliers to resolve complex infrastructure issues. * Identify opportunities for continual service improvement, network optimisation and operational efficiencies. * Deliver all agreed objectives in line with departmental and business priorities. * Undertake any other duties aligned to the scope and level of the role. ## Related Videos - [WeAreDevelopers LIVE - Back to CODE100](https://www.wearedevelopers.com/videos/1909-wearedevelopers-live-back-to-code100) - [Creating a routing app with Google Maps API from scratch](https://www.wearedevelopers.com/videos/831-creating-a-routing-app-with-google-maps-api-from-scratch) - [What makes Cybersecurity different for critical infrastructure?](https://www.wearedevelopers.com/videos/571-what-makes-cybersecurity-different-for-critical-infrastructure) - [Demystifying application networking in the cloud](https://www.wearedevelopers.com/videos/675-demystifying-application-networking-in-the-cloud) - [A Technical Introduction to Bitcoin's 2nd Layer- The Lightning Network](https://www.wearedevelopers.com/videos/15-a-technical-introduction-to-bitcoin-s-2nd-layer-the-lightning-network) - [Unlocking the potential of Digital & IT at Vodafone](https://www.wearedevelopers.com/videos/602-unlocking-the-potential-of-digital-it-at-vodafone) ## Related Articles - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [IT Salaries in UK](https://www.wearedevelopers.com/magazine/288-it-salaries-in-uk) - [Best Companies to work for in London: Top 25 Companies in 2023](https://www.wearedevelopers.com/magazine/187-best-companies-to-work-for-in-london-top-25-companies-in-2023) - [Software Engineer Salary London](https://www.wearedevelopers.com/magazine/252-software-engineer-salary-london) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [Where To Find Software Engineering Jobs](https://www.wearedevelopers.com/magazine/396-where-to-find-software-engineering-jobs)