SUMMARY

• Analysis and Debugging issues related to Network Mobility, device defects (issues in automotive or cellphone devices) like iOS and Android OS.
• Experience in the Automation Tools like SoftTest GUI, Qcat to assess the testing scenarios involving the verification on IMS and the EPC side and run these automated test cases. For example, going through the test object list and shortlisting the automatable testing scenarios like VoLTE IR94, IR92, CFx calling.
• Experience in designing and simulation of tilting the RF Antennas by developing Test Cases using simulation equipment like Spirent.
• Running and Modifying XML automation scripts to automate network simulator attenuate from 4G to 3G and vice versa.
• Responsible for validating the new LTE modem for AT&T and Verizon Carrier Acceptance testing.
• Knowledge in IOT AT&T Adapt - 10776 Certification testing such as LTE Mobility Management procedures, LTE RRC and Encryption, Network selection, LTE Intra-RAT and LTE Inter-RAT Mobility procedures, etc.
• Experience in Using the Test Simulators such as Anritsu ME7873L - LTE RF Conformance Test System, Ericsson, ALU simulators.
• Possess good understanding of LTE, UMTS/WCDMA, & CDMA, Air interfaces, EPS Network Architecture, multiple access techniques such as OFDMA and SC-FDMA, MIMO, QAM, E-UTRA Downlink Channels etc.
• Device Testing experience with both CDMA and GSM operators such as AT&T. Familiar with Test Plans and Test Routes.
• Possess good understanding and functionality of Layers like Physical, MAC and RRC.
• Possess good Understanding of LTE-Frequency Scan, Channel Mapping, Initial Acquisition, SIB Procedures, Random Access Procedure, and RRC Procedures.
• CSFB/IRAT/Handover procedures, TCP/UDP.
• Possess good knowledge in executing Test Cases using requirement document.
• Treat new tests requests as challenges, provide helpful feedback and make every effort to accommodate these new challenges.
• Ability to provide ideas and even participate in developing and debugging new Test Cases.

TECHNICAL SKILLS

QA Test Engineer

Confidential, Redmond, WA

Responsibilities:

• Responsible for automatically moving the RAN from 4G to 3G and vice versa using the attenuator.
• Responsible for validating ePDG, EPC, IMS, VoLTE network call flows while running various VoLTE and 3G features on the test devices in AT&T Lab Environment.
• Responsible for functional and regression testing of various IMS, VoLTE and 3G features such as IR94, IR92, RCS features (IPME, File transfer etc.) on different mobility devices like Cell phones, tablets, etc.
• Analysis and Debugging issues related to Network Mobility, device defects (issues in automotive or cellphone devices) and Android OS
• Responsible for issue analysis, debugging and tracking using multiple tools such as IRIS, JDSU SART, Wireshark, QXDM, QCAT, QPST, Apex and HP ALM respectively.
• Responsible for designing and simulation of tilting RF Antennas by developing Test Cases using simulation equipment like Spirent.
• Performed Intensive regression testing on various virtual network nodes such as TAS and vUSP.
• Developed test cases related to various IMS, VoLTE scenarios and enhancements such as IR94, Roaming, RTT/TTY, SES Entitlement etc.
• Responsible for wireless network testing per established test plans: Voice Quality (RTP), Call Performance, Data Performance, and Video Performance under Lab network conditions on different Qualcomm modems over IMS/VoLTE/UMTS/CDMA2000/PSTN.
• Responsible for generating a Bug ticket number for the found defects, keeping track of the issues, monitoring the status of issues and close the issue after it is resolved using HP ALM tool.

Modem Field Test Engineer

Confidential

Responsibilities:

• As a Modem Field Test Engineer I was responsible for testing the mobile devices’ modem stability.
• Triggering the OS build package on the devices, provisioning them for LTE and test the modem’s performance by stressing the device so it crashes and produces dumps.
• Process those crashes, file JIRA bug tickets and generate the root-cause for them and report it to the debug team to update the code.
• Applied Programming skills, developing and updating automated test scripts and programs during the test case development.
• Very well aware of ADB commands.
• Very well aware of LTE, GSM, WCDMA, VoLTE and hVoLTE technologies.
• Maintaining and running the scripted tests, downloading Log files, reporting issues and following up with debug team for daily mobility tests.
• Good knowledge of IMS architecture, IMS elements like P-CSCF, I-CSCF, S-CSCF and LTE architecture elements like MME, HHS, P gateway, S gateway.
• Understanding of IMS registration, de-registration, end to end call flows, VoLTE and IMS call flows.
• Performed SRVCC handovers, VoLTE & CSFB call scenarios during the testing.
• Performed Firmware updates with Google Over the Air (GOTA)
• Verify the Modem and Apps issues by testing the various user based scenarios such as Voice Call, Data Call, VoWiFi, YouTube, Email, Camera, Audio, Video, Power Reset, Wi-Fi, Browser on GSM, WCDMA, LTE, technologies.
• Worked on multiple targets like 8996, 8976, 8937, 8952, Fusion Mav16, Fusion Mav13, Fusion 4, Fusion 4.5, 8994, 8974, Jolokia 8909, 8916, 8939 devices.

Associate RF Engineer

Confidential

Responsibilities:

• Performed RF Field testing for NCAL Market.
• Performed upload/download test on LTE, Tems 11.1.1/11.0.4 version, on the 4G Technology, with 1GB upload file and 70MB download file with a metro device R900. Covers FMT (Frequency Measuring Test) by driving a particular site on a 0.5mile radius.
• Performed Site Shakedown (SSD), IFHO IRATs on Tems 13.0, HTC cell phone testing, to analyze the PCI, RSRP and swap feeder cables and intra frequency handovers.
• Record SINR, MCSDL, MSCUL, RI, UE, Tx power on modulation techniques, average throughput through command prompt on each sector of the cell site with a specific lat/long to receive good coverage and a better signal quality.
• Performed KPI's measurement, Accessibility, Retainability, Integrity and mobility drives for cluster analysis.
• Detailed Layer 3 message analysis for UE attach, detach.
• Good understanding of LTE Network Architecture, LTE Air Interface, LTE Handover Procedures.