About this role
Salary: £85,000 - 90,000 per year
Requirements: Proven expertise in network architecture and network designExperience working for an ISP or within an ISP/carrier-grade network environmentAdvanced Cisco networking experience across enterprise and service provider technologiesCCIE (Service Provider or Enterprise preferred) highly desirable, or equivalent CCIE-level capabilityStrong knowledge of BGP, OSPF, IS-IS, MPLS, MPLS VPNs, IPv6, Multicast, and firewallsExperience producing HLDs, LLDs, migration plans, and technical documentationStrong project delivery, technical leadership, and stakeholder management skills Responsibilities: Lead network projects from scope and design through implementationOptimise networks and support operational handoverProvide senior escalation support and drive improvements in network performance, resilience, and securityMentor engineers and support maintenance and migration activitiesParticipate in an on-call escalation rota and collaborate with technical teamsSupport operational and leadership stakeholders to deliver business-critical network initiatives Technologies: CiscoSupportMPLSNetworkSecurity More:
We are offering a permanent Principal Network Engineer opportunity in London with a hybrid working model, requiring two days per week at our London HQ. We are looking for an experienced network professional to lead the architecture, design, delivery, and optimisation of large-scale carrier-grade networks, acting as the senior technical authority across network infrastructure projects. This role offers a salary of £80,000pa to £90,000pa plus benefits, and we will consider candidates based across the UK Midlands, London, and the South East UK, provided they can attend our London HQ twice weekly.
last updated 31 week of 2026