Senior Network Test Engineer - Cloud & 5G Validation

Inabia Software & Consulting Inc.; Greater London; On-site; GBP 70,000 - 100,000; Full time

Job summary

Inabia Software & Consulting Inc. is seeking a Senior Network Test Engineer in the United Kingdom to lead end-to-end verification, performance testing, and validation across cellular, WiFi, broadband, and cloud networks.

You will configure test environments, perform comprehensive testing, analyze traffic, and produce detailed reports. Strong Linux scripting, CI/CD integration, and AWS networking experience are essential.

Qualifications

• 5+ years of network testing, verification, or engineering experience.
• Strong practical knowledge of TCP/IP networking and Layer 2/3 concepts.
• Hands-on IPv4/IPv6, subnetting, VLANs, routing, DHCP, DNS, NAT, VPNs, firewall concepts.
• Experience in network performance testing: throughput, latency, jitter, packet loss.
• Proficient with Wireshark and packet-level troubleshooting.
• Experience building and maintaining network test environments and testbeds.
• Ability to design test plans, cases, and verification procedures.
• Legal right to work in the United Kingdom.

Responsibilities

• Plan and execute network verification and validation testing across telecom, broadband, WiFi, and IP-based networks.
• Perform functional, integration, regression, interoperability, performance, stability, and end-to-end testing.
• Validate throughput, latency, jitter, and service continuity.
• Configure IPv4/IPv6, VLANs, DHCP, DNS, NAT, routing, VPNs, firewalls, and LAN/WAN.
• Operate and maintain enterprise IP environments with routers, switches, gateways, and test clients.
• Test WiFi/broadband connectivity including CPE devices and access points for performance.
• Support LTE/5G testing, mobility, handovers, throughput, and service performance.
• Capture/analyze traffic with Wireshark, tcpdump, iPerf, and related tools.
• Troubleshoot issues across OSI layers, cloud services, and infrastructure.
• Develop verification strategies and test plans aligned with requirements.
• Collaborate with engineering, DevOps, and network ops to reproduce defects.
• Automate tests within CI/CD and AWS environments as appropriate.
• Document defects with logs, captures, steps, and evidence for engineers.
• Track defects through investigation, remediation, retesting, and closure.

Skills

TCP/IP fundamentals

Wireshark analysis

Network testing

IPv4/IPv6 + subnetting

LAN/WAN concepts

DNS/DHCP/NAT concepts

VPNs and firewalls

Test automation

Scripting (Python/Bash)

AWS networking basics

Tools

Wireshark

tcpdump

iPerf

Traceroute

NMAP

Job description

Inabia Software & Consulting Inc. is seeking a Senior Network Test Engineer in the United Kingdom to lead end-to-end verification, performance testing, and validation across cellular, WiFi, broadband, and cloud networks.

You will configure test environments, perform comprehensive testing, analyze traffic, and produce detailed reports. Strong Linux scripting, CI/CD integration, and AWS networking experience are essential.