Inabia Solutions and Consulting, Inc. ยท 1 month ago
Sr. Network Test Engineer
Bellevue, WA
Full-time, Contract
Onsite
Senior Level
5+ years expInabia Solutions & Consulting is seeking a highly accomplished Senior Network Test Engineer with expertise in telephony systems, cellular/WiFi networks, and satellite communications. This role involves owning the test lifecycle, designing test environments, validating protocols, and delivering analysis to ensure reliable networks.
ConsultingInformation TechnologyStaffing Agency
Responsibilities
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
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
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
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
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
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
Qualification
Required
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
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
Company
Inabia Solutions and Consulting, Inc.
WHO Founded in 2006 and headquartered in Redmond, WA.
51-200 employees
H1B Sponsorship
Inabia Solutions and Consulting, Inc. has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (12)
2024 (4)
2023 (17)
2022 (14)
2021 (5)
2020 (9)
Funding
Current Stage
Growth StageLeadership Team
Aftab Farooqi
President and CEO
Recent News
2023-06-09
Company data provided by crunchbase