Sr. Network Test Engineer – Wireless, Broadband & IP
Inabia Software & Consulting Inc. · GB
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About the Role
Inabia is seeking a highly skilled Senior Network Test Engineer to support advanced testing across 5G/LTE, Wi-Fi, and broadband/IP networking environments for a leading telecommunications program based in London. This role blends wireless test engineering with enterprise and broadband networking validation, requiring hands-on experience testing radio networks, IP connectivity, and customer-premises equipment (CPE) in both laboratory and field environments.
Responsibilities
- Test residential and enterprise routers, gateways, modems, mesh Wi-Fi systems, and CPE devices.
- Validate performance, reliability, and stability across fiber, DSL, wireless broadband, and Ethernet backhaul.
- Execute LAN/WAN configuration workflows, device onboarding, and end-to-end connectivity validation.
- Configure and validate IPv4/IPv6, subnetting, VLANs, DHCP, DNS, NAT, port forwarding, and firewall rules.
- Test VPN technologies including IPsec, SSL VPNs, WireGuard, and OpenVPN.
- Troubleshoot Layer 2–Layer 7 connectivity using tools such as Wireshark, tcpdump, traceroute, and iPerf.
- Build and maintain test environments combining broadband routers, switches, servers, VPN endpoints, and test tools.
- Ensure test repeatability through documentation, configuration management, and version control.
- Integrate new firmware, OS builds, and network parameters into test cycles.
- Use tools such as Wireshark, tcpdump, iPerf, and Rasberry Pi.
- Perform deep log analysis (RRC, NAS, SIP, RTP/RTCP, system logs) to identify root causes across wireless and IP layers.
- Produce clear test plans, defect reports, KPI dashboards, and root-cause analyses.
- Collaborate closely with broadband engineers, device OEMs, and network operators.
Requirements
- Professional experience in broadband/CPE validation, IP networking.
- CCNA strongly preferred.
- Strong understanding of IP networking fundamentals (routing, VLANs, NAT, firewalls, DHCP, DNS).
- Hands-on experience with network test and diagnostic tools (Wireshark, iPerf, tcpdump).
- Ability to design, configure, and troubleshoot complex testbeds across wireless and IP domains.
- Strong analytical, troubleshooting, and documentation skills.
- Fluent or professional working proficiency.
Skills
- 5G/LTE
- Wi-Fi
- Broadband/IP networking
- Radio networks
- IP connectivity
- CPE testing
- LTE/5G RAN
- Drive-testing
- Broadband/IP networking
- IPv4/IPv6
- Subnetting
- VLANs
- DHCP
- DNS
- NAT
- Port forwarding
- Firewall rules
- IPsec
- SSL VPNs
- WireGuard
- OpenVPN
- Wireshark
- tcpdump
- traceroute
- iPerf
- Rasberry Pi
- RRC log analysis
- NAS log analysis
- SIP log analysis
- RTP/RTCP log analysis
- System log analysis
Location
- London, England
Work Type
- Onsite
- Full-Time
- Contract
- Long Term
Experience Level
- Senior
About the Company
- Inabia is seeking a highly skilled Senior Network Test Engineer to support advanced testing across 5G/LTE, Wi-Fi, and broadband/IP networking environments for a leading telecommunications program based in London.