Senior Network Engineer L3

Telefónica Tech; Newtown; On-site; GBP 45,000 - 65,000; Full time

Job summary

A leading technology solutions provider in the UK is looking for an L3 Network Engineer. This role covers the management, maintenance, and support of network infrastructure and perimeter security systems. Responsibilities include troubleshooting complex network issues, optimizing network performance, and maintaining accurate network documentation. Candidates should have experience with LAN/WAN management and possess Fortinet and Aruba certifications. Inclusion and diversity are core values, welcoming applicants from all backgrounds.

Qualifications

• Experience of enterprise LAN/WAN/WLAN management.
• Experience of managing Firewall technologies, particularly Fortinet, Cisco.
• Experience of network monitoring, troubleshooting and management tools.

Responsibilities

• Supporting network and security infrastructure (LAN/WAN/WLAN/Firewalls/Application/VPN, etc.).
• Troubleshooting complex network issues and implementing solutions.
• Maintaining accurate network documentation and preparing regular reports.

Skills

Enterprise LAN management

Fortinet

HPE

Aruba

Firewall management

Network monitoring tools

Education

Fortinet certification

Aruba certification

Job description

Overview

The L3 Network Engineer will cover management, maintenance and support of network infrastructure, perimeter security systems and network management platforms.

Responsibilities

• Supporting network and security infrastructure (LAN/WAN/WLAN/Firewalls/Application/VPN, etc.)
• 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
• 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
• This role requires participation in 24/7 On-call, which operates on a rotational basis.

Requirements

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

Additional Information

Must have the right to live and work in the UK. Due to our location, access to own transport is essential.

Telefónica Tech (part of the Telefónica Group) is a leading NextGen Tech solutions provider with a highly diversified team of over 6,000 exceptionally skilled employees and +60 nationalities. We serve more than 5.5m customers every day in over 175 countries, with a global ecosystem of market-leading partners. Global strategic hubs: Spain, Brazil, the UK, Germany. The Telefónica Tech UK&I hub has an end-to-end portfolio of market leading services and develops integrated technology solutions to accelerate digital transformation through: Cloud, Data & AI, Enterprise Applications, Digital Workplace and Cyber Security & Networking. Values: Open, Bold, Trusted Trusted Partners:

Microsoft: Top 3 Service Providers, Azure Expert Status, Fastrack & Inner Circle Partner

HPE: Platinum Partner - FY23 UK&I Solution Provider of the Year

Palo Alto & Crowdstrike: part of our NextDefense Cyber Security Portfolio

Fortinet: Elite VIP Program - one of only 2 in the UK

AWS: Advanced Solution & Managed Service Provider Program

At Telefónica Tech, we believe inclusion is the bridge that empowers everyone to be their authentic selves. We celebrate and respect our differences because diversity drives innovation and makes us stronger. Be yourself with us, and feel that you belong. We welcome applicants from all backgrounds and identities regardless of age, disability, gender reassignment, marital or civil partnership status, pregnancy or maternity, race, religion or belief, sex, and sexual orientation. We are also committed to equity, accessible hiring practices, and creating an inclusive culture through many means including TogetHer (Women\'s network) and our Employee Resource Groups which include Diversity and Inclusion, Telefónica Tech Pride, Neurodiversity, ELEVATE (African and Caribbean heritage network), and Sustainability. We don\'t believe hiring is a tick box exercise, so if you feel that you don\'t match the job description 100%, but would still be a great fit for role, please get in touch.

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

This role requires participation in 24/7 On-call, which operates on a rotational basis.