Network Engineer

Salary: £55,000 - 55,000 per year

• 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.

• 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.

• Cisco
• Forti Gate
• ICT
• Support
• ITIL
• LAN
• Network
• Security
• AI
• Machine Learning

We are committed to diversity and inclusion.