We are currently recruiting for an experienced Network and Firewall Specialist to work a 12-month contract for our client 100% on-site in Aldermaston, Reading. Essential: Strong understanding of network fundamentals and troubleshooting processes. Experience working with Juniper Virtual Chassis and Clustering technology. Juniper most essential. Experience with configuring/troubleshooting EVPN/VXLAN on Juniper equipment. Experience of configuring GRE tunnels and Routing Instances/VRFs. Experience of PKI/certificate generation and renewal. Networking: strong routing skills (OSPF, BGP), Firewall configuration, WAN/LAN design, device clustering, high availability. Juniper Technologies: EX, QFX, switch configuration, SRX, vSRX Firewall and policy config, Junos Space, Security Director, Apstra. Security Platforms: FortiGate, F5 BIG-IP (Load Balancing/AWAF), Pulse Secure/Ivanti, high-grade encryption. Identity & Access Management: Cisco ISE (full life cycle), Windows NPS (RADIUS/802.1X). Monitoring & Observability: SolarWinds, Splunk. Core Network Services: IPAM, DHCP, DNS. Effective communication with technical and non-technical stakeholders. Willingness to work flexibly and to occasionally work evenings and weekends where exceptional circumstances require it. Travel to remote sites wh...