Modem Chipset Field Test Engineer

Modem Chipset Field Test EngineerLocation: [Bellevue, WA] (Onsite / Field-Based)Travel: up to 15%Job Type: Full-TimeAbout the RoleWe are seeking a Mobile Field Test Engineer to support 5G/LTE and NTN (Non-TerrestrialNetwork) / Satellite testing in real-world environments. This role focuses on end-to-endvalidation, log analysis, and troubleshooting across terrestrial and satellite (LEO/GEO, Direct-to-Device) networks in collaboration with R&D, QA, and carrier teams.Key ResponsibilitiesPerform field/drive testing for 5G NR, LTE, 3G, and NTN/satellite networksExecute RF, mobility, and data performance testing (throughput, latency, call scenarios)Validate handover between cellular and satellite (NTN) networksCapture and analyze logs using QXDM, QPST, XCAL/XCAP, Shannon DMTroubleshoot VoLTE/VoNR, data connectivity, and network performance issuesDevelop and execute test plans (routes, devices, KPIs, network conditions)Perform packet analysis using Wireshark (TCP/IP, UDP)Validate software/modem updates and feature enhancementsDocument results and deliver clear technical reportsConfigure and maintain test devices, SIM/eSIM, and test environmentsCollaborate with carrier labs, OEMs, and chipset teams for issue resolutionRequired QualificationsBachelor’s degree in Telecommunications, Electrical Engineering, Computer Science, or equivalent experienceHands-on experience in mobile field testing / wireless / telecom testingStrong knowledge of 5G NR, LTE, WCDMA/UMTS, GSMWorking 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 validationFamiliarity with VoLTE/VoNR, data testing, and KPI validationProficiency in Microsoft Office for reportingStrong analytical and troubleshooting skillsPreferred QualificationsExperience with 3GPP Release 17+ NTN standardsHands-on exposure to Direct-to-Device (D2D) satellite connectivityUnderstanding of 5G protocol stack (PHY, MAC, RRC, NAS signaling)Experience in carrier certification or satellite communication testingKnowledge of GNSS/GPS, RF propagation, and mobility scenariosFamiliarity with automation/scripting (ADB, Python, Shell)Experience with Wi-Fi, Bluetooth coexistence testingWork EnvironmentCombination of field testing (drive/walk testing) and lab validationTesting may include outdoor, remote, or limited-connectivity environmentsRequires travel (up to 15%) based on project scopeMay require extended hours or weekend work for test cycles and deploymentsHands-on work with mobile devices, RF equipment, and satellite-enabled hardwareRequirementsValid driver’s license and ability to travel to test locationsAbility to work in field environments and handle test equipmentWhy work at BTI?We’re committed to creating a workplace where employees feel valued, supported, and empowered to grow. Our team benefits from competitive compensation, comprehensive health and wellness offerings, and opportunities for professional development. We are proud to be an equal opportunity employer and make all employment decisions without regard to race, color, religion, sex (including pregnancy, sexual orientation, and gender identity), national origin, age, disability, genetic information, veteran status, or any other legally protected status.We comply with all applicable federal, state, and local employment laws, including those related to fair hiring practices, pay transparency, workplace safety, and reasonable accommodations. We are dedicated to maintaining an inclusive environment where everyone has the opportunity to succeed and contribute meaningfully. #J-18808-Ljbffr BTI Solutions, Inc.