Senior 3rd Line Network Engineer - Remote & Flexible

Leidos; Huntingdon; On-site; GBP 62,000 - 79,000; Full time

Benefits offered by this job

Contributory Pension Scheme

Private Medical Insurance

33 days Annual Leave

Flexible benefits

Flexi-Time

Job summary

Leidos is seeking a Senior 3rd Line Network Engineer in Huntingdon to provide advanced fault rectification and support for High Side IT systems supporting national security outputs. You will respond to escalations, perform proactive maintenance and liaise with stakeholders at all levels in a high-demand environment.

The role requires in-depth Cisco LAN expertise, SDN experience with VMware NSX, and strong firewall and routing knowledge, with an emphasis on security boundaries and SLA adherence.

Qualifications

• Thorough and demonstrable understanding of Cisco Enterprise LAN environments at 3rd line support level.
• Experience with Software Defined Networking (SDN) and VMware NSX.
• Strong knowledge of WAN connectivity and routing protocols (BGP/OSPF).
• Hands-on troubleshooting of Layer 2/3 switching and routing.
• Experience with configuring and troubleshooting firewalls (Fortigate, Sonicwall, Palo Alto, Juniper) and ASAv.
• ITIL ICT service delivery experience on critical infrastructure.

Responsibilities

• System Support & Ticket resolution to keep Core Network estate online and incidents resolved per KPI/SLA.
• Problem Resolution with root-cause analysis across resolver groups and manufacturers.
• Maintenance of systems usingPeriodic Preventive Maintenance and upgrades to prevent obsolescence.
• Documentation of system configuration changes and work in SD+.
• Resource Movement: configuration, installation and deployment of infrastructure components.
• Participation in Projects and CRs, contributing to implementation, testing and rollout.

Skills

Cisco Enterprise LAN

BGP/OSPF routing

VMware NSX

Firewalls

ITIL service delivery

Education

CCNP/CCDP certification

Tools

VPC/VDC

STP

BGP

OSPF

Job description

Leidos is seeking a Senior 3rd Line Network Engineer in Huntingdon to provide advanced fault rectification and support for High Side IT systems supporting national security outputs. You will respond to escalations, perform proactive maintenance and liaise with stakeholders at all levels in a high-demand environment.

The role requires in-depth Cisco LAN expertise, SDN experience with VMware NSX, and strong firewall and routing knowledge, with an emphasis on security boundaries and SLA adherence.