Level 3 Network Engineer (Data Centre & Security)

About the role

Telefónica Tech, part of the Telefónica Group, is looking for a Level 3 (3rd line) Network Engineer in Huntingdon. The post holder manages, maintains and supports data centre network infrastructure, perimeter security systems and management platforms, working in secure environments.

Key responsibilities

• Support data centre network and security infrastructure (LAN / WAN / WLAN, firewalls, application and VPN delivery controllers).
• Troubleshoot complex network issues, identify bottlenecks and implement solutions to ensure optimal performance.
• Optimise network infrastructure for performance and scalability.
• Maintain accurate network documentation, including diagrams, configurations and inventory records.
• Carry out day-to-day patching, maintenance and operation of the systems.
• Improve systems continuously in response to changing demands.
• Liaise with internal departments and coordinate with third-party suppliers and partners.

Required profile

• Extensive experience of enterprise data centre, LAN and WAN network management.
• Extensive experience of Cisco ACI, switching and routing.
• Extensive experience of Cisco and/or Fortinet firewalls.
• Extensive experience of network monitoring, troubleshooting and management tools.
• CCNP certification.
• Right to live and work in the UK; access to own transport is essential due to the location.
• Ability to meet security clearance vetting requirements (SC and NPPV3), as offers are conditional on passing them.

Required skills

• Cisco ACI, switching and routing
• Cisco and/or Fortinet firewalls
• Network monitoring and management tools
• Clear communication with non-technical people, report writing, attention to detail, multitasking

Desirable: Fortinet, Aruba and Juniper certifications.