> Markdown version of [/jobs/ext/617549-modem-chipset-lab-test-engineer](https://www.wearedevelopers.com/jobs/ext/617549-modem-chipset-lab-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 Lab Test Engineer - **Company:** BTI Solutions Inc - **Location:** San Diego, CA, United States - **Salary:** $49,920.0 - $208,000.0 - **Contract:** Permanent contract - **Skills:** Universal Mobile Telecommunications Systems, LTE (Telecommunication), Automation of Tests, Bluetooth, W-CDMA (UMTS), Configuration Management, 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, Network Protocols, Systems Integration, TCP/IP, Wireshark, Wi-Fi Technology, Scripting, Performance Testing, 5G NR, Hardware Testing, Information Technology, Low Latency, GNSS, Satellite Networks - **Published:** June 18, 2026 - **Apply:** https://www.indeed.com/viewjob?jk=01ccfdf81bf6c7ee ## About the Role Do you have experience in Wi-Fi protocol?, * Bachelor's degree in Telecommunications, Electrical Engineering, Computer Science, or equivalent experience * Hands-on experience in lab testing / RF testing / telecom testing * Strong knowledge of 5G NR, LTE, WCDMA/UMTS, GSM * Working knowledge of NTN / satellite communications concepts (LEO/GEO, latency, coverage) * Experience with RF test equipment (Spirent, Keysight, R&S, Anritsu, Anite) * 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 Preferred Qualifications * Experience with 3GPP Release 17+ NTN standards or Direct-to-Device (D2D) * Knowledge of 5G protocol stack (PHY, MAC, RRC, NAS signaling) * Experience in carrier certification or device validation labs * Familiarity with Wireshark, GNSS/GPS, RF propagation concepts * Basic scripting (Python, ADB, Shell) for test automation * Experience with Wi-Fi, Bluetooth coexistence testing Work Environment * Primarily lab-based testing with controlled network and RF conditions * Hands-on work with RF equipment, network simulators, and mobile devices * Occasional extended hours or weekend testing based on project needs Requirements * Ability to work in a lab environment with test equipment and hardware setups * Basic understanding of system integration and test configuration management ## Description We are seeking a Mobile Lab Test Engineer to support 5G/LTE and NTN (Non-Terrestrial Network) / Satellite validation in controlled lab environments. This role focuses on RF testing, protocol validation, log analysis, and system integration using industry-standard test equipment and tools. You will work closely with R&D and carrier teams to validate device performance, network behavior, and feature functionality across 3GPP-based cellular and satellite systems. Key Responsibilities * Perform lab-based testing for 5G NR, LTE, 3G, and NTN/satellite networks * Execute RF, protocol, and performance testing (throughput, latency, call scenarios) * Set up and configure lab test environments using RF equipment and network simulators * Operate and manage test systems and tools: + Spirent, Keysight, R&S (Rohde & Schwarz), Anritsu, Anite * Capture and analyze logs using QXDM, QPST, XCAL/XCAP, Shannon DM * Troubleshoot VoLTE/VoNR, data connectivity, signaling, and protocol issues * Perform protocol stack analysis aligned with 3GPP standards * Validate software/modem updates, patches, and new feature implementations * Conduct packet-level analysis using Wireshark (TCP/IP, UDP) * Develop and execute test plans and test cases (devices, configurations, KPIs) * Document results and produce clear technical reports * Collaborate with R&D, QA, and carrier labs to resolve defects and improve performance * Support field testing activities as needed ## 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) - [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 Most Popular IT Jobs on the Market](https://www.wearedevelopers.com/magazine/376-the-most-popular-it-jobs-on-the-market) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [Finding IT & Technology English-speaking Jobs in Germany ](https://www.wearedevelopers.com/magazine/446-finding-it-technology-english-speaking-jobs-in-germany)