OverviewThis range is provided by RedRock Resourcing. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more.A leading IT Managed Service provider in central London who provide solutions across Cloud, Connectivity, Cyber Security & Communications, are looking for an experienced 3rd Line Network Engineer to join them.You will come with strong L2/L3 Routing & Switching skills and hands-on expertise with Next-Gen Firewalls (Fortinet / Palo Alto).You’ll handle complex escalations, deliver network changes, and support customer infrastructure across a diverse tech stack.What you’ll do:Own and resolve 3rd line support ticketsDesign and implement network changesSupport project delivery and mentor 2nd line engineersDocument solutions and perform DR/failover testingAdvanced L2/L3 networking (OSPF, BGP, EIGRP, RIP)Fortinet and/or Palo Alto firewall configurationExperience with Cisco, Meraki, Aruba, JuniperStrong troubleshooting and packet analysisCCNP or equivalent level knowledgeFamiliarity with cloud (Azure/AWS) and network automation (Python/Ansible)Paying well and offering hybrid working & career progression.Responsibilities & QualificationsSeniority level: Mid-Senior levelEmployment type: Full-timeJob function: Customer Service, Information Technology, and OtherIndustries: IT Services and IT Consulting, IT System Training and Support, and Information Services #J-18808-Ljbffr