Salary: £48,000 - 50,400 per year Requirements: 3–7 years in manual testing with a network focus Strong SD-WAN experience (Cisco, Fortinet, Aruba, Prisma, Silver Peak) Solid networking knowledge (TCP/IP, VLANs, routing, NAT, QoS) Experience with Wi-Fi, VPNs, and network segmentation Hands-on with tools like Wireshark, tcpdump, traceroute Familiarity with JIRA, Azure DevOps, or ALM Responsibilities: Validate overlay/underlay connectivity and SD-WAN policies Test application-aware routing, traffic steering, and SLA performance Verify routing protocols (BGP/OSPF) between SD-WAN and core networks Execute failover/failback and resilience testing scenarios Validate segmentation (VRFs), zoning, and security policies Perform LAN/WAN validation (DHCP, DNS, NAT, ACLs, QoS) Test Wi-Fi networks (802.1X, RADIUS, roaming, RF performance) Validate VPN connectivity (site-to-site & remote access) Measure network performance (latency, jitter, throughput, packet loss) Analyse packet captures and logs for troubleshooting Create and execute test plans, cases, and traceability matrices Perform functional, regression, and integration testing Log and track defects with clear supporting evidence Produce status reports and Go/No-Go recommendations Ensure compliance with secure environments and SC standards Support CAB processes and change validation Technologies: Aruba Azure Cisco DevOps Support JIRA LAN NAT Network Prisma Security TCP/IP VPN Cloud More: We are supporting a major global technology organization on a large-scale enterprise network transformation program. We are seeking experienced Manual Test Engineers with strong network testing expertise to validate complex SD-WAN and enterprise network environments. This role is fully onsite, with positions available in Wokingham and Warwick. The contract duration is 6 months, with a rate of £415 per day. Immediate start preferred. last updated 15 week of 2026