Truminds - UE Protocol Test Engineer
7 days ago
About the Role :We are seeking an experienced UE Protocol Test Engineer to join our team and contribute to LTE/5G modem testing, performance validation, and protocol-level analysis. The role involves executing test plans, analyzing failures, identifying defects, and collaborating closely with development teams to ensure high-quality software delivery. The ideal candidate will have a strong understanding of LTE/5G call processing, 3GPP specifications, and hands-on experience with protocol testing tools.Key Responsibilities :Protocol & System Testing :- Execute UE-level LTE protocol, performance, and conformance test cases.- Perform functional, performance, stability, and automation testing across LTE and 5G technologies.- Conduct system acquisition testing and analyze protocol behavior at different layers.Failure Analysis & Defect Management :- Perform root-cause analysis of test failures using logs and diagnostic tools.- Identify software defects, file detailed bug reports, and track them through closure.- Work closely with development teams to validate fixes and retest resolved issues.Call Processing & Troubleshooting :- Analyze end-to-end call flows and throughput issues as per 3GPP standards.- Troubleshoot and reproduce customer-reported issues; provide detailed logs and insights for debugging.- Support debugging activities related to protocol stack failures and KPI deviations.Collaboration & Reporting :- Collaborate with cross-functional teams including development, systems, and customer engineering.- Prepare clear and concise test reports, results summaries, and defect documentation.- Ensure timely updates, maintain testing discipline, and follow established QA processes.Required Skills & Experience :- 2- 8 years of hands-on experience in LTE/5G UE protocol testing.- Strong understanding of LTE/5G call flows, NAS/RRC/RLC/MAC/PHY layers.- Good knowledge of 3GPP standards for GSM, GPRS, EDGE, WCDMA, LTE, and 5G NR.- Experience with protocol analyzers, log analysis tools, and UE simulators.- Strong analytical and troubleshooting skills in protocol-level debugging.- Experience with throughput testing, performance evaluation, and stability testing.- Ability to understand, interpret, and debug detailed call flows.Preferred Skills :- Experience with test automation frameworks for protocol testing.- Familiarity with test tools such as Anritsu, R&S, Keysight, or similar UE simulators.- Knowledge of scripting (Python, Shell) for automation (optional but a plus).- Prior exposure to customer issue reproduction and triage. (ref:hirist.tech)
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