L3 Network Engineer

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 everyday 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, 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 Fortinet: Elite VIP Program – one of only 2 in the UK Palo Alto & Crowdstrike: part of our NextDefense Cyber Security Portfolio The L3 Network Engineer is responsible for management, maintenance and support of datacentre network infrastructure, perimeter security systems and management platforms. Key Responsibilities: Supporting datacentre network and security infrastructure (LAN / WAN / WLAN / Firewalls / Application/VPN, Delivery Controllers 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 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 In addition to the above duties and responsibilities the post holder must be prepared to