• Conducted 5G/4G throughput testing and issue analysis• Performed UDP/TCP/Ping test case execution and troubleshooting• Executed manual and automated tests on various devices to validate functionality, usability, stability.• Managed modem crashes and core dump collection• Conducted KPI comparison and analysis• Analyzed CQI, RI, RSRP, SNR, and MCS values, comparing results between DUT and CDUT• Worked with MIMO, MU-MIMO, and various TM modes• Analyzed HARQ ACK/NACK procedures and K0/K1/K2 values• Executed carrier acceptance, conformance, and data throughput testing in live network environments• Experienced with data acquisition and analysis using tools like QXDM, Spirent, Anritsu, Callbox, and PCAT• Installed automation scripts on devices using ADB commands and shell scripts for scheduled testing• Identified and reported defects using JIRA, collaborating with developers for timely resolution• Performed functional and regression testing of modem chipsets across various RAT environments• Verified RSRP, RSCP, SINR, throughput, and BLER during tests; addressed field issues like dropped calls, blocked calls, poor RF coverage, and handovers for network improvements• Conducted regression, sanity, and connectivity testing to ensure device reliability and performance• Analyzed protocol specifications and conducted detailed call flow analysis for interoperability, performance, and reliability of telecom networks and devices• Performed rigorous testing of mobile devices using MNO scripts, GCF, and PTCRB standards to ensure compliance with technical specifications• Analyzed failure logs and performed root cause analysis to triage issues and facilitate prompt resolutions• Developed and executed test scripts to meet customer requirements, focusing on functionality, interoperability, and performance• Collaborated closely with engineering teams to validate fixes and verify product enhancements based on test results

• Validated RACH mechanisms, improving network connectivity and minimizing access delays.• Analyzed and optimized dynamic scheduling and Semi-Persistent Scheduling (SPS) for efficient resource allocation.• Conducted API analysis between PHY and L2/L3 layers to ensure seamless communication.• Resolved throughput issues, increasing data transmission rates and enhancing overall network efficiency.• Worked on bundling and multiplexing in TDD HARQ mode to optimize data transmission performance.• Managed CQI reporting and feedback mechanisms, enabling better modulation schemes and network reliability.• Applied advanced techniques in Transmission Modes (TM) and MIMO technology for enhanced throughput.• Handled various DCI formats (DCI-0 to DCI-4) for effective communication between network layers and user equipment.• Conducted eNodeB throughput testing, ensuring optimal performance and stability.• Executed sanity and build verification tests for LTE software releases.• Validated LTE procedures such as Attach, Detach, and Handover during sanity testing.• Conducted throughput testing using UDP/TCP protocols across different MTU sizes.• Performed ping tests to measure and evaluate latency under different conditions.• Analyzed logs for troubleshooting throughput-related issues, resolving critical network bottlenecks.• Conducted throughput analysis across layers, including PHY, MAC, RLC, and PDCP of the eNodeB.• Monitored and analyzed HARQ procedures, improving error correction and retransmission efficiency.• Evaluated DCI assignments to improve communication reliability and resource utilization.• Conducted latency and reliability testing to ensure compliance with KPIs.• Analyzed network performance metrics like CQI, SINR, and MCS for enhanced efficiency.• Performed LTE KPI testing to assess key performance indicators such as throughput and latency.• Validated handover procedures across intra- and inter-RAT environments to ensure seamless transitions.