Sr. Network Test Engineer
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Job Location:
Bellevue, WA - USA
Hourly Salary:
USD 55 - 65
Posted on:
4 days ago
Vacancies:
1 Vacancy
Job Summary
Senior Network Test Engineer
Company: Inabia Solutions & ConsultingLocation:Onsite (5 days)
Employment Type: Full-Time /W-2 or GC ONLY
Position Overview
Inabia is seeking a highly accomplished Senior Network Tester with deep expertise across telephony systems cellular/WiFi networks and satellite communication environments. This onsite role demands a hands-on engineer who can own the test lifecycle end-to-enddesigning enterprise-grade test environments benchmarking validating complex communication protocols and delivering precise analysis that ensures the reliability of mission-critical networks.The ideal candidate brings strong technical leadership advanced troubleshooting intuition and the ability to translate test outcomes into actionable engineering insights.
Key Responsibilities
1. Advanced Cellular & WiFi Network Testing
- Conduct comprehensive performance and functional testing across 4G LTE 5G NR and WiFi (2.4/5 GHz WiFi 6/6E) networks.
- Validate eNB/gNB connectivity handovers roaming behaviors and throughput stability under varying load conditions.
- Analyze RF signal strength SINR RSSI SNR channel utilization and interference patterns using industry-grade tools.
- Benchmark performance across mobility scenarios high-density environments and mixed traffic types.
2. Telephony Protocol & VoIP Validation
- Validate call flows signaling and control-plane behavior across SIP RTP RTCP IMS SS7 and VoIP systems.
- Analyze codec behavior (G.711 G.722 Opus AMR) MOS scoring jitter buffers and packet-loss tolerance thresholds.
- Perform regression testing on dial plans call routing failover QoS tagging and multi-site telephony environments.
- Ensure alignment with ITU-T 3GPP and IETF standards.
3. Satellite Link Analysis & Testing
- Execute end-to-end testing of satellite uplink/downlink paths modulations link budgets rain fade tolerance and latency performance.
- Evaluate communication reliability under varying atmospheric conditions and bandwidth constraints.
- Validate ground station integration antenna alignment parameters and satellite modem behavior.
- Use link simulators channel emulators and traffic generators for controlled analysis.
4. Enterprise-Grade Test Environment Ownership
- Architect configure and maintain a fully instrumented test environment including routers switches firewalls VoIP gateways traffic generators RF analyzers satellite modems and WiFi/cellular test benches.
- Ensure environment readiness for functional performance regression and stress tests across multiple domains.
- Manage firmware updates scenario modeling lab automation and continuous integration with engineering teams.
5. Deep-Dive Troubleshooting & Performance Benchmarking
- Perform advanced troubleshooting across OSI layers using Wireshark tcpdump SolarWinds iPerf NetSpot Nmap Aircrack-NG and similar tools.
- Analyze throughput latency jitter packet loss QoS behaviors and end-to-end application performance.
- Correlate anomalies with protocol-level failures RF constraints routing issues or misconfigurations.
- Produce clear root-cause analysis and optimization recommendations for engineering leadership.
6. Reporting Documentation & Cross-Team Collaboration
- Develop detailed test plans matrices acceptance criteria and traceability documentation.
- Produce executive-ready test reports with charts logs KPIs defect summaries and engineering recommendations.
- Collaborate with software network DevOps and system engineering teams throughout design integration and release cycles.
Required Qualifications
- 5 years of professional experience in network testing across telephony cellular WiFi and satellite environments.
- Mastery of network diagnostic tools: Wireshark tcpdump iPerf SolarWinds traffic generators protocol analyzers RF scanners and monitoring dashboards.
- Strong understanding of:
- SIP/RTP/IMS/VoIP protocols
- LTE/5G NR fundamentals
- WiFi standards (802.11a/b/g/n/ac/ax)
- Satellite communication architectures
- TCP/IP routing switching VLANs QoS BGP/OSPF
- Proven track record of designing and owning complex test environments.
Preferred Skills
- Background in large-scale telecom or satellite network deployments.
- Experience with RF test equipment network automation frameworks or CI/CD-driven testing.
- Strong analytical ability structured communication and stakeholder engagement skills.
Required Experience:
Senior IC
Key Skills
- Apache Commons
- Asset
- Art And Craft
- Concrete Pump
- Accident Investigation
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