Gnss validation

4 weeks ago

Bangalore, India L&T Semiconductor Technologies Full time

Job Title: GNSS Validation & Automation Engineer (GNSS & A-GNSS) Location: Bengaluru Job Type: Full-time Experience Level: 4-8 Years Job Summary: We are seeking a skilled and motivated GNSS Validation & Automation Engineer to join our team responsible for the validation and testing of GNSS and Assisted GNSS (A-GNSS) systems. The ideal candidate will be proficient in writing test plans, creating automated test scripts, executing field/lab tests, analyzing performance data, and delivering high-quality test reports. You will validate a range of GNSS/A-GNSS functionalities that impact real-world navigation accuracy, robustness, and user experience. Key Responsibilities: Design, develop, and maintain test plans and test cases for validating GNSS and A-GNSS functionalities based on product specifications and industry standards. Perform functional validation of: Time to First Fix (TTFF): Cold, warm, and hot start performance. Signal acquisition and tracking across GNSS constellations (GPS, GLONASS, Galileo, Bei Dou, QZSS, IRNSS). Positioning accuracy (horizontal and vertical) in varying environmental and motion conditions. Multi-constellation and multi-frequency support, including L1, L5, and dual-band operations. A-GNSS support, including SUPL-based, Control Plane (CP), and User Plane (UP) assisted positioning. Sensitivity and weak signal testing in urban canyon, indoor, and obstructed environments. Power consumption during different GNSS modes. Develop and maintain test automation frameworks using Python, Bash, or other scripting languages. Set up, configure, and operate GNSS test environments, including signal simulators, record/playback systems, and OTA test setups. Conduct drive tests and field tests in real-world environments (urban, rural, indoor, multipath). Collect and analyze GNSS logs. Collaborate with system architects, firmware, and hardware engineers to troubleshoot and isolate issues. Document and communicate results through detailed test reports, dashboards, and defect reports. Continuously improve validation coverage, test automation, and overall test efficiency. Required Qualifications: Bachelor’s or Master’s degree in Electronics, Telecommunications, Computer Engineering, or related discipline. 3+ years of experience in GNSS and/or A-GNSS validation, system testing, or automation. Solid understanding of GNSS systems and signals, including GPS, GLONASS, Galileo, Bei Dou. Experience using GNSS signal simulators (e.g., Spirent, R& S, Spectracom) and/or real-world test tools. Proficiency in Python, Bash, or similar languages for test automation. Understanding of A-GNSS protocols (e.g., SUPL, LPP, RRC) and telecom standards (LTE/5 G). Availability to join immediately or within 30 days.

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