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Modem System Test Engineer Resume

San Diego, CA

Summary:

  • AT&T 10776 , Verizon UCR and GDP ,TMO Data Carrier Acceptance test suite (lab) execution and debugging for UMTS Technology
  • Expertise in using protocol test simulators like Anritsu MD8470A, SpirentSR5500, Agilent, BOA, panda, and wildcats
  • Logging, Analyzing(UMTS protocol stack messages), documenting and filing data collected and bugs reports during data performance, radio performance and device aggression test using QXDM, slick edit and APEX
  • Strong knowledge in WCDMA (3G/HSDPA/HSPA+) Network Architecture and their call processing concepts.
  • Expertise in automation and manual regression testing for various modems for android, IOS windows phones and tablets
  • Tested DATA throughput, radio performance, Device aggression, cell selection/reselection, Inter ,IRAT handovers and WCDMA features like EFACH,HSRACH,CPC, EDRX, DC,3C, ASDIV on various modems.
  • Expertise in bug tracking tools (CR, JIRA)
  • Member of WCDMA (3G/HSDPA/HSPA+) team responsible for commercialization of DIME, BOLT modems.
  • Strong experience in performing RF Modem testing of the devices on NNEXT 7.0, 12.0 & QXDM
  • Well versed in performing CSFB testing, IFHO and IRAT testing in both WCDMA, LTE technologies and Mobile Application Testing, IOT, Regression testing, Key performance, Sanity testing on mobile Handsets
  • Experienced in taking AP & CP Crash dumps upon modem crashes using RDX tool, capturing traces of packets using Wireshark
  • Experienced in performing RF drive testing using TEMS, ETS to carry out radio propagation, signal strength measurement and coverage analysis of the network
  • Experienced in performing IRAT tests which include 3G to 2G CS cell reselection in idle mode, 2G to 3G CS cell reselection in idle mode

Skills:

  • Tools: NNEXT, RDX,,MTM,ODIN, ATM, Crash Scope, Slick Edit and APEX, T32 Flashing tool
  • Software’s : C/C++
  • Operating System: Windows, Linux/Unix.
  • Strong knowledge in WCDMA (3G/HSDPA/HSPA+) Network Architecture and their call processing concepts.
  • Experience in ADB commands usage
  • Expertise in Qualcomm Software – QXDM, QPST, QCAT, QMICM and QMI test pro.
  • Expertise in Microsoft Office Suite (MS-Word, Excel, PowerPoint and Access)
  • Proficient with RF engineering and networking basics

Experience:

Confidential

San Diego, CA

Modem system test engineer

  • Member of WCDMA (3G/HSDPA/HSPA+) team responsible for commercialization of DIME, BOLT modems.
  • Logging, Analyzing(UMTS protocol stack messages), documenting and filing data collected and bugs reports during data performance, radio performance and device aggression test using QXDM, slick edit and APEX
  • Testing included DATA throughput, radio performance, Device aggression, cell selection/reselection, Inter ,IRAT handovers and WCDMA features like EFACH,HSRACH,CPC, EDRX, DC,3C, ASDIV
  • Raising change request (CR’s) against concerned teams such as software, firmware, RRC, RLC & RF and following with them till CR is in built state.
  • working with various internal team for critical issues to meet deadline for project
  • Expertise in automation and manual regression testing for various modems for android, IOS windows phones and tablets
  • Experience using protocol test simulators like Anritsu MD8470A, SpirentSR5500, Agilent, BOA, panda, wildcats etc.
  • AT&T 10776, Verizon and TMO carrier acceptance testing on SPIRENT
  • Executing and evaluating network specific Test Suites defined in Spirent using Spirent’s SR5500 test equipment
  • Running custom test cases modified in the Spirent’s Development library whenever needed.
  • Testing Data Throughput, Call Reliability/Retainability and Device Aggression
  • UE stress testing
  • Reporting Modem crashes to the concerned teams and follows up with them and verifying fixes.
  • PERL scripting for updating changes as per testing requirement
  • Knowledge of LTE and VOLTE technologies

Confidential

Dallas, TX

Device Test Engineer

  • Diagnosing and analyzing the handsets based on communication and application protocols
  • Performed RF Modem testing of the devices on NNEXT 7.0, 12.0 & QXDM.
  • Hands on experience in QPST & QMICM.
  • Updating NNEXT profile parameters upon the requested tests, and installation of new firmware’s as available.
  • Perform CSFB testing, IFHO and IRAT testing in both WCDMA & LTE technologies
  • Perform Mobile Application Testing, IOT, Regression testing, Key performance and Sanity testing on mobile Handsets
  • Daily flashing of the devices for updated AP & CP binaries using ODIN software & MTM terminal for calibration data restore.
  • Expertise in testing Data throughput using DATUM for the Samsung phones on 2G/3G/LTE networks
  • Performed test cases both on field and stationary modes on various networks like Global, LTE, edge & GSM.
  • Performed RF device testing on MO & MT for Circuit switched, Packet switched data, PLMN Search, Call connectivity and SMS cases, CS+PSD.
  • Test verification of different GSM & WCDMA handsets including feature phones and smart phones.
  • Taking AP & CP crash dumps upon modem crashes using RDX tool, capturing traces of packets using Wireshark.
  • Reporting the daily issues observed on a daily basis and analyzing the issues.
  • Creating test reports for IOT and other issues found during testing
  • Participation in creation of test plans, responsible for logistics of field testing
  • Coordinating with the Software team to analyze the critical Issues.

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