Hiring Company: FNS Systems LLC
Client Need: Immediate
Experience: 3–5 years
Work Arrangement:100% Onsite
Employment Type: [Contract to Full-Time]
FNS Systems LLC is seeking a QXDM Device Specialist for an immediate client opportunity. This is a 100% onsite position. The ideal candidate will have hands-on experience troubleshooting and validating 4G LTE and 5G NR devices using Qualcomm diagnostic tools.
Responsibilities
- Capture and analyze device logs using QXDM, QCAT, QPST, and Qualcomm DIAG tools.
- Troubleshoot LTE, 5G NSA, and 5G SA connectivity issues.
- Investigate registration, call setup, data, handover, throughput, IMS, VoLTE, and VoWiFi issues.
- Analyze RRC, NAS, IMS, SIP, MAC, and PHY-layer logs.
- Reproduce device and network issues and identify root causes.
- Create detailed defect reports, test results, and technical documentation.
- Support device validation, regression testing, carrier acceptance, and field-debug activities.
- Collaborate onsite with modem, firmware, RF, network, and QA engineering teams.
Required Qualifications
- 3–5 years of experience in wireless device testing, modem diagnostics, or cellular protocol troubleshooting.
- Hands-on experience with Qualcomm QXDM.
- Strong knowledge of 4G LTE, 5G NR, NSA, and SA technologies.
- Experience with Android devices, ADB, QPST, QCAT, and Qualcomm DIAG tools.
- Familiarity with RRC, NAS, IMS, VoLTE, VoWiFi, carrier aggregation, and EN-DC.
- Strong troubleshooting, analytical, communication, and documentation skills.
- Bachelor’s degree in Electrical Engineering, Computer Engineering, Telecommunications, or a related field preferred.
Preferred Qualifications
- Experience with carrier testing, device certification, RF testing, or network emulators.
- Knowledge of 3GPP standards.
- Experience with Python, shell scripting, Wireshark, Jira, or TestRail.
FNS Systems LLC. is an equal-opportunity employer. We consider qualified applicants without regard to race, color, religion, sex, national origin, age, disability, veteran status, or any other status protected by applicable law.
We are an equal opportunity employer and all qualified applicants will receive
consideration for employment without regard to race, color, religion, sex,
national origin, disability status, protected veteran status, or any other
characteristic protected by law.