Network Engineer

Telefónica Tech; Cambridgeshire and Peterborough; On-site; GBP 60,000 - 80,000; Full time

Job summary

A leading telecommunications provider in the UK is seeking an L2 Network Engineer to manage and support network infrastructure, including perimeter security systems and network management platforms. The role involves troubleshooting complex issues, optimizing performance, and maintaining documentation. Candidates should have experience with enterprise networks and tools like Cisco and Fortinet. This role requires participation in a 24/7 on-call rotation and access to own transport is essential.

Qualifications

• Experience in enterprise LAN/WAN/WLAN management.
• Proficient with Cisco, HPE, and Aruba devices.
• Knowledge of firewall technologies, especially Fortinet and Cisco.

Responsibilities

• Support network and security infrastructure.
• Troubleshoot complex network issues.
• Optimize network infrastructure for performance.

Skills

Enterprise LAN/WAN/WLAN management

Cisco

HPE

Aruba

Firewall technologies

Network monitoring tools

Tools

Cisco

Fortinet

Aruba

Job description

The L2 Network Engineer will cover management, maintenance and support of network infrastructure, perimeter security systems and network management platforms.

Responsibilities

• Supporting network and security infrastructure
• Troubleshooting complex network issues, identifying network bottlenecks, and implementing solutions to ensure optimal network performance
• Optimizing network infrastructure to ensure maximum performance and scalability.
• Maintain accurate network documentation, including network diagrams, configurations, and inventory records
• Prepare regular reports on network performance, availability, and security
• Day‑to‑day patching, maintenance and operation of the above in secure environments
• Continual improvement of the systems based on changing demands
• Liaising with various departments within the business
• Coordinating with 3rd party suppliers and partners to support, maintain and implement these systems

Essential Requirements

• Experience of enterprise LAN/WAN/WLAN management
• Experience of Cisco, HPE, Aruba
• Experience of firewall technologies, particularly Fortinet, Cisco
• Experience of network monitoring, troubleshooting and management tools

Desirable

• Cisco certification
• Fortinet certification
• Aruba certification

Additional Information

• This role requires participation in 24/7 on‑call, which operates on a rotational basis.
• Must have the right to live and work in the UK.
• Due to our location, access to own transport is essential.
• Must meet Security Clearance requirements if this is a requirement of the role and any offer would be conditional upon the successful candidate passing BPSS which includes a criminal record check.