Location: 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-end—designing 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.
Top Skills
What We Do
WHO
Founded in 2006 and headquartered in Redmond, WA. Our Senior Leadership team has more than 137 years of combined experience in the Telecommunications and Software Industry. Inabia is built on family values and close-knit culture. This commitment extends to the relationships we build with both our employees and our business partnerships.
As a Minority Certified business, we strive to positively impact society through technology, people, and innovation.
WHAT
For over a decade, we have been providing powerful IT and business solutions to individuals and businesses alike. Here at Inabia, we believe that our success reflects our clients’ success.
HOW
We are fortunate to be situated in a city where technology and innovation is not only appreciated; but part of day to day lives. We are a growing company that has adapted and evolved our approach, helping us to exceed the ever-changing needs and requirements of our clients.
WHY
We are a company that fosters and values relationships, as a result many of our clients have been with us from the start of our journey. We ensure that our partners have access to best-in-class professional support, management consulting and staffing services. We make sure our consultants are carefully screened and selected based on their experience. This process ensures that we meet or exceed the specific needs of our clients.
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