Wireless System Validation Engineer

• Test Strategy & Execution:
  Define, develop, and execute comprehensive test plans for cellular modem validation across various radio access technologies (5G /FR2, LTE-A, UMTS).
• Protocol Stack Analysis:
  Perform deep-dive log analysis of the cellular protocol stack (L1, MAC, RLC, RRC, and NAS layers) to identify and root-cause signaling failures, handovers, and throughput drops.
• System Performance Benchmarking:
  Characterize key performance indicators (KPIs) such as RSRP, SINR, BLER, and Peak Throughput under varying network conditions (fading, interference, and mobility).
• Test Automation:
  Design and maintain scalable automation frameworks using Python to increase test coverage and efficiency in lab and regression environments.
• Failure Analysis & Debugging:
  Collaborate with Firmware, Hardware, and System teams to debug complex system-level issues.
• Lab Management:
  Operate and configure high-end cellular network emulators and RF test equipment for both signaling and non-signaling test modes.

Category Common Tools Network Emulators Keysight (UXM), Rohde & Schwarz (CMW
500/CMX
500), Anritsu (MT8000A)
Diagnostics Qualcomm QXDM/QCATAutomation & Data Python (PyTest), GitRF Analysis Keysight 89600 VSA, Tektronix Spectrum Analyzers Education/

Experience:

Mid level System Validation Engineer with min 5 years of experience

Education:

B.S. or M.S. in Electrical Engineering, Telecommunications, or a related field.

Cellular Expertise:
Deep understanding of 5G  (Standalone and Non-Standalone) and LTE-A features like Carrier Aggregation (CA), MIMO, Beamforming, and VoLTE/Vo Wi Fi .Protocol Knowledge:
In-depth familiarity with 3

GPP protocols and the mobile device-to-network registration and call-flow processes.

Hands-on RF Testing:
Proficiency with RF lab equipment, including Spectrum Analyzers, Signal Generators, Power Meters, and Vector Network Analyzers (VNA).Programming:
Strong proficiency in Python for test script development and data analysis.

Log Analysis:
Experience using diagnostic tools such as QXDM, QCAT, Wireshark, or similar modem logging software.

Background in field testing, drive testing, or Inter-Operability Testing (IOT) with infrastructure vendors (Ericsson, Nokia, Samsung). Knowledge of RF front-end components (PA, LNA, Switches, Filters) and how they impact system-level cellular performance.