Job Title: Senior Network EngineerLocation: London / Hybrid (UK and Europe travel)Salary: 60K- 75KA leading smart buildings and enterprise IT consultancy is seeking an experienced Senior Network Engineer to support the delivery of advanced Cisco-based network solutions across landmark sites in London and throughout Europe.Role OverviewThe business is seeking a technically strong and client-focused Senior Network Engineer based in London. The successful candidate will design, deliver, and support enterprise network infrastructures while acting as a trusted technical advisor to clients. From project delivery to Tier 3 troubleshooting and optimisation, this role requires a blend of deep technical expertise, consultancy skills, and hands-on implementation.Key ResponsibilitiesDesign and deliver Cisco-based network infrastructure projects across London and EuropeProvide remote and on-site technical support to clientsInvestigate and resolve incidents in line with ITIL processesLead Tier 3 troubleshooting and network optimisationAct as a client-facing technical consultant, leading meetings and providing strategic adviceOversee voice and data networks for key client environmentsEnsure successful project delivery while maintaining high service standardsThe Ideal Candidate5 - 10 years'' experience in networking or similar rolesCCNP certified (CCNA desirable)Strong expertise in Cisco routers, switches, wireless, and voice technologiesProven experience in network design, implementation,