> Markdown version of [/jobs/ext/216728-modem-chipset-field-test-engineer](https://www.wearedevelopers.com/jobs/ext/216728-modem-chipset-field-test-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Modem Chipset Field Test Engineer - **Company:** BTI Solutions Inc - **Location:** Bellevue, WA, United States - **Contract:** Permanent contract - **Skills:** Universal Mobile Telecommunications Systems, LTE (Telecommunication), Bluetooth, W-CDMA (UMTS), Protocol Stack, Modems, Database Testing, Global Positioning Systems (GPS), Global System for Mobile Communications, Mobile Application Software, OSI Models, Python (Programming Language), Log Analysis, Microsoft Office, Network Connections, Packet Analyzer, Network Protocols, TCP/IP, Wireshark, Wi-Fi Technology, Scripting, Performance Testing, 5G NR, Hardware Testing, Information Technology, GNSS, Satellite Networks - **Published:** May 13, 2026 - **Apply:** https://www.indeed.com/viewjob?jk=cf028fe0e4394828 ## About the Role Do you have a valid Driver's License license?, Do you have experience in Telecommunication?, * Bachelor's degree in Telecommunications, Electrical Engineering, Computer Science, or equivalent experience * Hands-on experience in mobile field testing / wireless / telecom testing * Strong knowledge of 5G NR, LTE, WCDMA/UMTS, GSM * Working knowledge of NTN / satellite communications (LEO/GEO, latency, coverage) * Experience with log analysis tools (QXDM, QPST, XCAL, Shannon DM or similar) * Understanding of network protocols (TCP/IP, UDP, OSI model) * Experience with Android device testing and mobile software validation * Familiarity with VoLTE/VoNR, data testing, and KPI validation * Proficiency in Microsoft Office for reporting * Strong analytical and troubleshooting skills, * Experience with 3GPP Release 17+ NTN standards * Hands-on exposure to Direct-to-Device (D2D) satellite connectivity * Understanding of 5G protocol stack (PHY, MAC, RRC, NAS signaling) * Experience in carrier certification or satellite communication testing * Knowledge of GNSS/GPS, RF propagation, and mobility scenarios * Familiarity with automation/scripting (ADB, Python, Shell) * Experience with Wi-Fi, Bluetooth coexistence testing Work Environment * Combination of field testing (drive/walk testing) and lab validation * Testing may include outdoor, remote, or limited-connectivity environments * Requires travel (up to 15%) based on project scope * May require extended hours or weekend work for test cycles and deployments * Hands-on work with mobile devices, RF equipment, and satellite-enabled hardware Requirements * Valid driver's license and ability to travel to test locations * Ability to work in field environments and handle test equipment ## Description We are seeking a Mobile Field Test Engineer to support 5G/LTE and NTN (Non-Terrestrial Network) / Satellite testing in real-world environments. This role focuses on end-to-end validation, log analysis, and troubleshooting across terrestrial and satellite (LEO/GEO, Direct-to- Device) networks in collaboration with R&D, QA, and carrier teams., * Perform field/drive testing for 5G NR, LTE, 3G, and NTN/satellite networks * Execute RF, mobility, and data performance testing (throughput, latency, call scenarios) * Validate handover between cellular and satellite (NTN) networks * Capture and analyze logs using QXDM, QPST, XCAL/XCAP, Shannon DM * Troubleshoot VoLTE/VoNR, data connectivity, and network performance issues * Develop and execute test plans (routes, devices, KPIs, network conditions) * Perform packet analysis using Wireshark (TCP/IP, UDP) * Validate software/modem updates and feature enhancements * Document results and deliver clear technical reports * Configure and maintain test devices, SIM/eSIM, and test environments * Collaborate with carrier labs, OEMs, and chipset teams for issue resolution ## Related Videos - [Location Verification without GPS?](https://www.wearedevelopers.com/videos/1184-location-verification-without-gps) - [An Applied Introduction to eBPF with Go](https://www.wearedevelopers.com/videos/1075-an-applied-introduction-to-ebpf-with-go) - [Code meets connectivity - Developers as the powerhouse of Network API innovation](https://www.wearedevelopers.com/videos/1686-code-meets-connectivity-developers-as-the-powerhouse-of-network-api-innovation) - [Turning Container security up to 11 with Capabilities](https://www.wearedevelopers.com/videos/718-turning-container-security-up-to-11-with-capabilities) - [Debunking the Top 10 Myths about Web 3](https://www.wearedevelopers.com/videos/634-debunking-the-top-10-myths-about-web-3) - [Unleash the power of 5G in your code: transform your apps](https://www.wearedevelopers.com/videos/1567-unleash-the-power-of-5g-in-your-code-transform-your-apps) ## Related Articles - [The 8 Best Code Testing Tools](https://www.wearedevelopers.com/magazine/402-the-8-best-code-testing-tools) - [Should senior developers refuse interview coding challenges?](https://www.wearedevelopers.com/magazine/29-should-senior-developers-refuse-interview-coding-challenges) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [The CAMARA Project: How Telcos Collaborating Improves Developer Experience](https://www.wearedevelopers.com/magazine/671-the-camara-project-how-telcos-collaborating-improves-developer-experience) - [The Best Job Search Websites of 2025](https://www.wearedevelopers.com/magazine/368-the-best-job-search-websites-of-2025) - [The Most Popular IT Jobs on the Market](https://www.wearedevelopers.com/magazine/376-the-most-popular-it-jobs-on-the-market)