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About the Role
Inabia is seeking a Senior Network Test Engineer to lead end-to-end network verification, performance testing, troubleshooting, and validation across cellular, WiFi, broadband, IP networking, and cloud-connected environments. This role requires deep expertise in IP networking, AWS cloud connectivity, DevOps practices, and test automation.
Responsibilities
- Plan and execute network verification and validation testing across telecom, broadband, WiFi, and IP-based network environments
- Perform functional, integration, regression, interoperability, performance, stability, and end-to-end network testing
- Validate network performance including throughput, latency, jitter, packet loss, availability, failover, and service continuity
- Configure and troubleshoot IPv4/IPv6, subnetting, VLANs, DHCP, DNS, NAT, routing, VPNs, firewalls, and LAN/WAN connectivity
- Configure enterprise IP environments involving routers, switches, access points, gateways, VPN endpoints, servers, and test clients
- Test WiFi and broadband connectivity, including gateways, routers, CPE devices, access points, and network performance
- Support cellular network testing involving LTE/4G, 5G NSA/SA, mobility, handovers, registration, throughput, and service performance
- Capture and analyze network traffic using Wireshark, tcpdump, iPerf, and related packet, protocol, and performance-analysis tools
- Troubleshoot network issues across Layer 2 through Layer 7, identifying failures originating from configuration, transport, routing, applications, cloud services, or network infrastructure
- Build, configure, operate, and maintain repeatable network test environments and testbeds
- Create comprehensive test strategies, test plans, test cases, verification procedures, defect reports, RCA documentation, and final test reports
- Work with engineering, development, network operations, DevOps, and infrastructure teams to reproduce and resolve defects
- Support testing of network services and applications deployed within AWS environments
- Validate connectivity between enterprise, telecom, lab, and cloud environments, including hybrid on-premises-to-AWS network paths
- Analyze connectivity, latency, routing, DNS, firewall, and access-control issues within cloud-connected test environments
- Work within CI/CD-driven test and verification environments
- Use Python, Bash, or similar scripting languages for test execution, log processing, configuration, and automation
- Integrate network verification activities into automated development and release processes
- Develop verification strategies based on network and system requirements
- Translate technical requirements into measurable test cases, acceptance criteria, and performance benchmarks
- Execute positive, negative, boundary, failover, resiliency, and performance testing
- Verify network configuration changes, firmware and software releases, and infrastructure updates before production deployment
- Perform regression testing following network or software changes
- Document defects with sufficient logs, packet captures, reproduction steps, and technical evidence
- Track defects through investigation, remediation, retesting, and closure
Requirements
- 5+ years of network testing, network verification, telecommunications testing, or network engineering experience
- Strong practical knowledge of TCP/IP networking and Layer 2/Layer 3 concepts
- Hands-on experience with IPv4/IPv6, subnetting, VLANs, routing, DHCP, DNS, NAT, VPNs, and firewall concepts
- Demonstrated experience performing network performance testing, including throughput, latency, jitter, and packet-loss analysis
- Strong experience with Wireshark and packet-level troubleshooting
- Experience building, configuring, and maintaining network test environments and testbeds
- Demonstrated experience developing and executing test plans, test cases, regression tests, and verification procedures
- Ability to perform structured root-cause analysis across network, infrastructure, and application layers
- Strong technical reporting and documentation skills
- Must have the legal right to work in the United Kingdom
Skills
- IP networking
- AWS cloud connectivity
- DevOps practices
- Test automation
- IPv4/IPv6
- Subnetting
- VLANs
- DHCP
- DNS
- NAT
- Routing
- VPNs
- Firewalls
- LAN/WAN connectivity
- WiFi testing
- Broadband testing
- Cellular network testing (LTE/4G, 5G NSA/SA)
- Wireshark
- tcpdump
- iPerf
- Python
- Bash
- CI/CD
- AWS networking (VPCs, subnets, security groups, route tables, VPNs, load balancers)
- Git
- Jenkins
- GitLab CI
- Azure DevOps
- Docker
- Kubernetes
- Nmap
- SNMP
- Syslog
- VoIP
- SIP
- RTP
- IMS
- VoLTE
- VoWiFi
Location
- United Kingdom
Work Type
- Full-time
Experience Level
- Senior
About the Company
- Inabia is seeking a Senior Network Test Engineer based in the United Kingdom.