Prudhvi

***** ******** ******, *******, ** - ****6

203-***-****, admy0b@r.postjobfree.com

OBJECTIVE:

A highly focused and Self-motivated electrical and electronics graduate well-versed in wireless communications. Senior Test Engineer, with experience in LTE, IMS testing and Drive testing networks.

SUMMARY:

4+ years of experience in Mobile Device testing and modules testing in Lab using R&S CMW500 (3+ years) and Field testing (1 year).

Proficient in testing for 2G/3G/4G protocol (GSM/GPRS/UMTS/LTE/VoLTE) handsets using Qualcomm Tools QxDM and Spirent tools such as Datum and other relevant apps.

Performed stationary and mobility testing on 2CA and 3CA markets for Mobile devices.

Performed testing related to 3GPP LTE, CSFB, Data Throughput and VoLTE on Android and iOS devices.

Experienced in Data Throughput testing on FTP and UDP for Downlink, Uplink and combined Uplink/Downlink by using Datum and other related apps.

Execution of 10776 IMS test plan on various devices like Samsung, Motorola, LG for AT&T carrier.

Performing protocol manual testing in Live Radio Conditions and automation testing, simulation testing on test equipment R&S CMW500, Protocol remote desktop and Anite for IMS, UCE, RCS, Wi-Fi Calling, Protocol LTE, Protocol Data Roaming, CMAS Alerts and IR-94 sections on various devices such as SAMSUNG, LG, Motorola, OnePlus, BLU, MTK chipset and knowledge on ANRITSU equipment for T-Mobile carrier.

Experience in handling OEM things, includes flashing the mobile devices and modules with given builds assigning tasks to teams and following up with daily status. Submitting daily basis reports to OEM’s including all Failures with necessary logs and defects. Following up with their regression requests.

Provide log file analysis for 5G, LTE, IMS/VoLTE, WCDMA technologies using QXDM tool and Wireshark tools.

Capturing ADB Logs, QXDM Logs, Shannon, and MTK logs based on OEM for the defects and preparing defect reports as per requirement.

Analyzing Log packets using QXDM, QCAT tool, Wireshark tool, and Shannon tool. Debugging the root cause from OTA messages and log packets by applying a filter.

Verifying RRC, NAS, Signaling, and IMS related issues by looking into the log messages.

Experienced in testing for Comcast’s LTE network such as Sanity check, LTE testing, VoLTE testing and XFINITY Wi-Fi testing.

Knowledge in 4G Core Network testing of MME, SGW, PGW, AMF, UPF, AUSF & AAA

Experienced in Data and call performance testing for different carriers such as AT&T, T-Mobile, SPRINT in the live network environment.

Experience in working on Intel boards such as Data, call performance testing and KPI testing by using ‘at’ commands

Experience in working with SPIRENT NOMAD tool for Call performance and Audio Quality on given test unit with reference units for Sprint and T-Mobile network

Experience in working with SIERRA wireless, Telit, QUECTEL modules for Firstnet network.

Experience in working protocol tests on Harman IOT module for T-Mobile carrier and capturing DLT viewer, Shannon DM and Test equipment logs for failures.

Knowledge on 3GPP 5G NR Architecture, execution of 5G NSA, SA, VoNR, IR94 and RTT test cases on various mobile handsets using R&S CMW500 simulator equipment.

Experience in 4G and 5G RAN components.

Knowledge on Python.

CERTIFICATION:

Certified Scrum Master

WORK EXPERIENCE:

Google R&D Lab:

Carrier Certification Engineer – Mountain View, CA Mar 2021 to Present

Responsible for Integration and testing of IMS, IR-94, RCS and Wi-Fi calling documents as per the testing requirements.

Experience in working with Simulators R&S test equipment and Protocol Remote Desktop for IMS & VoLTE, IR94, WiFi-calling, Network Connectivity, LTE, RCS, RTT and CMAS for various devices on T-Mobile and AT&T network.

Capturing Test Equipment logs, QXDM logs, ADB logs, Shannon logs and bug report for the abnormal behavior as per the given request.

Filing defects by using the JIRA tool and respective OEM tools for the failures.

Raising TE defects by using R&S GLORIS for the equipment related issues

Tech Mahindra Americas

LTE Test Engineer - Redmond, WA Oct 2016 to Mar 2021

Job Role:

Lab Testing Engineer for validating handset performance in the live network environment.

Understanding 2G, 3G, LTE VoLTE Layers 1, 2 and 3.

Device testing and live network log collection.

Data and call performance testing using CMW R&S simulators.

IRAT and Inter/ Intra RNC/TAC handover testing.

Mobile testing for 2G/3G/4G protocol (GSM/GPRS/UMTS/LTE/VoLTE) handsets using Qualcomm Tools QxDM and Spirent tools such as Datum and Wave.

Identify, analyze, and document defects, questionable functions, errors, and inconsistencies in handset behavior.

Exposure to Quality Center/Defect Management tool, if any is a plus.

IMS (Manual & Lab):

Responsible for Integration and testing of IMS, UCE, IR-94, RCS and Wi-Fi calling documents as per the testing requirements.

Experience in working with Real UE for VoLTE voice calling (IR-92), Video calling (IR-94), IP Messaging Evolution (IPME), Wi-Fi calling, Rich Communication Suite (RCS) and User Capabilities Exchange (UCE test cases over IMS.

Experience in working with Simulators R&S test equipment and Protocol Remote Desktop for IMS & VoLTE, IR94, WiFi-calling, Network Connectivity, LTE, RCS, RTT and CMAS for different OEM’s on T-Mobile network.

Capturing Test Equipment logs, QXDM logs and ADB logs for the abnormal behavior as per the given request.

Filing defects by using the JIRA tool and respective OEM tools for the failures.

Raising TE defects by using R&S GLORIS for the equipment related issues

Samsung Device Testing:

Comcast (network)

Los Angeles and San Francisco, CA

Responsibilities:

Worked as a 4G/LTE drive test engineer for Comcast on their new LTE network.

Performed various tests such as Sanity check, LTE testing, VoLTE testing and XFINITY Wi-Fi testing on Comcast’s LTE network.

Worked on Pre-integration prep work included flashing the testing devices with new Firmware.

Performed testing on Test unit and Reference unit and captured parameters for their 4G/LTE network.

Communicating and working with the market Leads to solve testing related issues.

Report issues and capturing logs for failures.

Google Device Testing:

Responsibilities:

Worked intensively on SMS-EMS/MMS test plans for Verizon, TMO and Sprint on LTE and 3G network.

Performed various tests such as sending SMS/MMS with special characters, V-cards, High priority and call back option and multiple attachments as per the given requirements.

Captured device logs and Bug reports based on instructions and filed defects for abnormal testing

IBIS Functional and KPI testing:

Responsibilities:

Experience in working on Intel chipset, Flashing with firmware, calibration, backing up the data, adding IMEI by using the phone tool

Performing stationary and mobility testing on functional test scope as well as KPI scope by using ‘at’ commands on Sprint and other networks

Performing data related test cases on IPv4, IPv6, Call performance testing such as VoLTE, CSFB, MO SMS, MT SMS, SIM PIN test cases, Handover, TAC by using the ‘at’ commands on SPRINT and other carriers

Captured .istp logs and core dump logs as per instructions and raised defects for abnormal testing

Device Testing by Using NOMAD:

Responsibilities:

Experience in working with SPIRENT NOMAD on test unit for T-Mobile network

Experience in performing the test cases such as Call Performance, Audio Quality as per given requirements on both WCDMA and VoLTE.

Performing the Data Performance testing on WCDMA and VoLTE by using Datum application in both stationary as well as mobility

Capturing the QXDM logs for Data performance testing and Call performance, also Logs for Audio quality testing by using simulators.

Testing Modules:

Responsibilities:

Experience in working with SIERRA wireless, Telit, QUECTEL modules for Firstnet network.

Flashing the modules with Firmware.

Performing the MO/MT SMS, Idle mode Inter-band and Intra-band handover test cases, VoLTE Inter-band and Intra-band Handover test cases, Call performance testing by ‘at’ commands.

Performing the stationary Data Performance testing on WCDMA and VoLTE by using Datum application

Capturing the QXDM logs with default mask for abnormal behavior as per the given instructions

EDUCATION:

University of New Haven West Haven, CT

Master of Science, Electrical Engineering August 2016

JNTUK University

Bachelors in Electronics & Communications May 2014

ACADEMIC PROJECTS:

Analysis and design a BUCK converter and its controller Spring 2016

For the given specification we have analyzed and designed a Buck converter using MATLAB Simulink and plotted its behavior.

Model a system and to design a controller for the system Summer 2016

The goal of the project was to model a system and to design a controller for the system so that the closed-loop system performs satisfactorily.

Removing Noise from the given audio file Fall 2015

Here in this project the job was to remove the unwanted noise in the given audio file by using the MATLAB program. Firstly determined the frequencies of the interfering tones, and then filtered out those frequencies.

Embedded systems Spring 2016

Getting Simplicity studio tools, EFM32 Zero Gecko, STK3200 development board.

UNDERGRADUATE PROJECT:

Implement the Solar Power Plant

Used renewable energy source solar energy and reformed into electrical energy to determine outcomes on lessening the pollution and cost.

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