Manual Test Engineer – Network Testing

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