Network and Firewall Specialist

Network & Firewall Specialist

Location:-Aldermaston (100% onsite)

Contract:-12 months |-IR35:-In Scope

Rate:44.99/hr Umbrella-

Clearance:-Active DV required (Sole UK Nationals only)

Overview

We are seeking experienced-Network & Firewall Specialists-to join a secure environment. This hands-on role involves installing, configuring, and troubleshooting network devices, with a focus on Juniper technologies, network security, and high-availability infrastructure.

Key Requirements

• Strong-Juniper experience-(EX, QFX, SRX / vSRX)
• Experience installing-switches and firewalls
• Solid networking knowledge (OSPF, BGP, WAN/LAN design, clustering)
• Experience with-EVPN/VXLAN, VRFs, GRE tunnels
• Familiarity with-PKI / certificate management
• Technical background

Responsibilities

• Monitor network performance and manage incidents
• Troubleshoot and resolve network issues
• Support capacity and availability planning
• Work with stakeholders and third parties
• Produce-Low-Level Designs (LLDs)
• Provision and configure network devices

Additional Info

• Participation in on-call rota; occasional evenings/weekends
• Travel to remote sites may be required (including overnight stays)
• 1-stage MS Teams interview