Salary: £33,000 - 48,000 per year Requirements: Minimum 3 years experience in 3rd Line network support Strong knowledge of LAN/WAN, routing, switching, and firewall technologies (NSX, Palo Alto, Cisco, Checkpoint, Juniper) Experience with load balancers and authentication technologies Proven problem-solving skills and ability to work under pressure Excellent communication and organisational skills ITIL process knowledge and experience in a NOC or multi-customer environment Responsibilities: Provide advanced technical support and fault management for customer environments Deliver technical projects and manage escalations Mentor 2nd Line analysts to enhance team capability Support service integration and design for new customers Implement proactive improvements and tooling integration Maintain accurate documentation and adhere to security policies Technologies: Cisco Firewall Support ITIL LAN Network Security More: We are excited to offer a fantastic opportunity for an experienced 3rd Line Network and Security Analyst to join our Networking team. Our team supports customers across the UK and globally, delivering top-notch technical solutions and driving service excellence. This role is based in Hatfield, Nottingham, or Milton Keynes, and we require candidates to be SC Cleared or willing to undertake clearance. We value collaboration and innovation, ensuring our team members thrive in a supportive environment. last updated 8 week of 2026