637295 Senior Infrastructure Engineer

Senior Cisco Network Engineer Location: Leicester , UK (Hybrid) Salary: Up to £60,000 + BenefitsThis is a hands-on senior engineering role where you'll become the technical escalation point for an experienced infrastructure team, providing expert guidance on complex Cisco networking challenges while helping shape the future of a business-critical network estate.Supporting an environment of over 7,000 endpoints, 1,600+ Cisco LAN devices and 220+ WAN links, you'll play a key role in maintaining, optimising and evolving a predominantly Cisco network.What You'll Be DoingAct as the senior technical escalation point for Network and Infrastructure Engineers.Provide technical leadership, mentoring and guidance to engineers working across the Cisco estate.Configure, maintain and optimise Cisco network infrastructure across a large multi-site environment.Design, implement and troubleshoot complex LAN, WAN and Wireless networking solutions.Lead the resolution of high-level networking incidents and provide 3rd line support.Deliver network upgrades, migrations and infrastructure improvement projects.Strengthen network resilience, performance and security.Work closely with internal teams and third-party vendors to deliver successful projects.Essential ExperienceThis role is heavily weighted towards advanced Cisco networking within a large enterprise environment. We're looking for someone with extensive hands-on experience across Cisco technologies who can confidently lead from a technical standpoint.Advanced Cisco routing and switching experience.Strong commercial experience supporting enterprise LAN, WAN and Wireless networks.Advanced practical experience with BGP, OSPF and EIGRP in production environments.Strong understanding of network security best practices.CCNA, CCNP or equivalent commercial experience.Advanced experience with Cisco Firepower Management Centre (FMC).Advanced experience with Cisco Identity Services Engine (ISE).Advanced experience with Cisco Passive Identity Connector (ISE-PIC).Advanced experience with Cisco Catalyst switching.Advanced experience with Cisco Wireless technologies.Experience operating within a large-scale enterprise network supporting thousands of endpoints and multiple sites.The ability to act as the senior escalation point, providing technical advice, guidance and leadership to experienced engineers across the team.Desirable ExperienceVMware or Hyper-V.Storage Area Networks (SAN).Enterprise backup and disaster recovery solutions.Microsoft Active Directory, Windows Server, Exchange and SharePoint.Azure, AWS or Google Cloud.PowerShell, Ansible or Terraform.Cisco Unified Communications / VoIP.