About this role
Salary: £55,000 - 55,000 per year
Requirements: We require a thorough and demonstrable understanding of Cisco Enterprise LAN environments at 3rd line support level, including deployment, administration, and troubleshooting.We ideally expect CCNP and CCDP-level knowledge.We require a strong focus on secure LAN environments, including security boundaries and rulesets.We require a good understanding of WAN connectivity and routing protocols, with experience in the implementation, configuration, and management of virtual and physical networking solutions.We require hands-on experience troubleshooting Layer 2 and Layer 3 switching and routing.We require hands-on experience configuring and troubleshooting VPC, VDC, STP, BGP, OSPF, and other mainstream protocols.We require hands-on experience configuring and troubleshooting Sidewinders and ASAv firewalls, with a platform focus on ISR, 6800, 3750, and 3850 series.We require hands-on experience configuring and troubleshooting Fortigate, Sonicwall, Palo Alto, ForcePoint, ASAv, and Juniper firewalls.We require excellent communication and organisational skills, with the ability to work independently and autonomously.We require the ability to tackle complex problems and incidents.We require experience in ITIL ICT service delivery on critical infrastructure.We require experience working under pressure to meet deadlines while managing multiple priorities.We require experience in patch management, including analysis and deployment.We require the ability to liaise with stakeholders at all levels of seniority, including customers.We require a High DV clearance. Responsibilities: We provide crucial Core Services support by conducting complex fault rectification for incidents.We support Problem Management, Continual Service Improvement, and occasional Change Request work on IT systems supporting key National Security outputs.We conduct reactive and proactive maintenance, primarily on High Side systems, and may occasionally support lower classification systems.We respond to escalations from 2nd Line Engineers and other Resolver Groups.We carry out advanced troubleshooting to diagnose and rectify issues as they arise.We develop technical solutions to complex issues and problems.We work to ensure issues and problems are resolved within SLA levels and that KPIs are met.We deliver system support and ticket resolution to keep the Core Network estate online and running smoothly.We work with other resolver groups, original manufacturers, users, and suppliers to perform root cause analysis and provide technical solutions.We complete and record periodic maintenance of all systems using Periodic Preventative Maintenance and routine upgrading activities.We maintain and create documentation of system configuration changes.We accurately record work in service desk systems.We assist in the configuration, installation, and deployment of infrastructure components.We engage in infrastructure-related projects and change requests, contributing to implementation, build, and testing phases. Technologies: CiscoFortiGateICTSupportITILLANNetworkSecurityAIMachine Learning More:
We are Leidos UK & Europe, a growing technology, engineering, and science company focused on making the world safer, healthier, and more efficient. We support critical capabilities and transformation across defence, healthcare, government, safety and security, and transportation. This role is based in Huntingdon, UK, and requires High DV clearance. We offer a collaborative culture, meaningful and engaging careers, a healthy work-life balance, and a strong reward package including a contributory pension scheme, private medical insurance, 33 days annual leave including public and privilege holidays, flexible benefits, and flexi-time. We are committed to diversity and inclusion, and we provide flexibility, career development, technical academies, career rotations, and development plans to help our people grow.
last updated 30 week of 2026