Sr. Network Test Engineer Cellular, WiFi & Broadband at Inabia Software & Consulting

Senior Network Test EngineerLocation: Onsite (5 days/week)Type: Full-time W-2Work Authorization: Must be legally authorized to work in the United States without sponsorship.Position OverviewInabia is seeking a highly skilled Senior Network Test Engineer with deep hands-on experience validating cellular (LTE/5G) WiFi broadband and enterprise IP networking systems. This role demands strong technical rigor across RF IP layers protocol analysis broadband connectivity VPN setup routing and end-to-end network performance validation.You will own test planning test environment configuration field/lab validation KPI measurement and L2L7 troubleshooting for advanced telecommunications and enterprise-grade network systems.Key ResponsibilitiesCellular / WiFi / Broadband TestingConduct comprehensive testing across LTE LTE-A 5G NSA/SA WiFi 5/6/6E and residential/enterprise broadband access technologies.Validate throughput latency jitter packet loss QoE and service continuity across fixed and mobile access.Test and evaluate broadband gateways CPEs modems routers mesh systems and indoor coverage solutions.Perform multi-RAT test scenarios: attach registration CA EN-DC VoLTE/VoWiFi VoNR handovers fallback and failover.IP Networking Routing & ConfigurationConfigure and test IPv4/IPv6 addressing subnets VLANs DHCP NAT DNS and routing behaviors.Validate VPN configurations (IPsec SSL WireGuard OpenVPN) including tunnel setup failover and throughput impacts.Execute test cases involving LAN/WAN routing QoS firewall rules port forwarding and enterprise-grade security controls.Analyze L2L7 network behavior using tcpdump Wireshark iPerf TR-069/USP SNMP syslogs IP routing tables and traceroute/pathping.Test Environment Setup & ManagementBuild and maintain multi-node testbeds including 5G CPEs WiFi APs broadband gateways SIM configs VPN endpoints and core network simulators.Integrate various network elements (UEs routers switches servers) and configure network services to replicate real enterprise and residential environments.Automate test workflows where possible and ensure testbed version control repeatability and documentation.Tools Logs & Diagnostic AnalysisUse tools such as QXDM/QCAT Wireshark tcpdump TEMS X-Cal Actix iPerf spectrum analyzers to capture and interpret logs.Perform advanced log analysis for RRC NAS SIP RTP/RTCP and IP-layer events to diagnose root causes across RF and IP tech stacks.Investigate throughput bottlenecks packet loss patterns IP routing anomalies DNS failures and misconfiguration issues.Reporting Documentation & Cross-Team CollaborationProduce clear and actionable test plans test cases KPI dashboards defect logs and RCA reports.Work closely with device OEMs carrier engineering teams broadband vendors and enterprise networking teams.Provide engineering feedback for firmware updates feature improvements certification cycles and customer escalation scenarios.Required Qualifications5 years in telecom or advanced network testing (LTE/5G/WiFi/broadband).Strong knowledge of IPv4/IPv6 subnetting routing VLANs DHCP DNS NAT VPNs and enterprise network configuration.Hands-on experience with broadband gateways home routers WiFi APs 5G/LTE CPEs or ISP-grade network equipment.Proficiency in QXDM QCAT Wireshark tcpdump iPerf TEMS X-Cal or similar tools.Experience testing VoLTE/VoWiFi IMS SIP/RTP traffic mobility call flows and service continuity.Proven ability to build manage and debug complex test environments.Strong documentation troubleshooting and communication skills.Preferred QualificationsExperience with carrier broadband deployments ISP labs DOCSIS/Fiber or DSL/Copper access.Familiarity with firewall rules routing tables ACLs QoS policies and enterprise networking best practices.Exposure to Python automation frameworks or log-parsing scripts.Experience working with U.S. carriers broadband ISPs or network equipment vendors. Required Experience:Senior IC Key Skills Academics,Football,Bluetooth,Fabrication,Claims Investigation,Event Marketing Employment Type : Full-Time Experience: years Vacancy: 1 Hourly Salary Salary: 55 - 65