Jun 2012 – Jul 2017 · 5 yrs 1 mo · Hyderabad Area, India

•  Lead testing team for UMTS RF conformance testing.
•  Responsible for 3G RRM, 3G performance, 2G performance and TMO/ATT data throughput testing.
•  Verification of the conformity of handsets to 3GPP conformance specification 34.121 & 51.010 respectively and TMO/ATT Data throughput test specifications so that handset manufacturers can achieve GCF/PTCRB & carrier acceptance certification.
•  Triage issues on physical layer, FW, RF & RRC layers of modem software, troubleshooting & debugging utilizing Qualcomm tools APEX/QXDM & test stations including Anritsu ME 7873, R&S CTRU RRM and TS8980.
•  Analyze the modem performance degradation so that software enhancements can be done to resolve issues including RF, data throughput, handovers and cell reselection through code changes.
•  Validation of new added test cases on conformance test equipment and raising issue with TE vendors.
•  Handling and debugging of customer issues, reproduction of failed scenarios on customer handsets to resolve customer-blocking issues and support product commercialization.
•  Planning and drafting test scenarios and cases for 3gpp as part of RAN5 contributions.
•  Collaborate with cross-functional teams (development, firmware, systems engineering & customer) to enhance the modem software quality through change requests for WCDMA and GSM.
•  Impact analysis of new features on GCF test suite and testing of affected areas as part of feature testing.

Apr 2008 – May 2012 · 4 yrs 1 mo · Gurugram, Haryana, India · On-site

•  Testing of the 3G RNC with NodeB and UE for end to end testing and in simulated environment for TTCN testing.
•  Creation of test scenario, test environments and writing test cases based on requirements and specifications of new features in E2E testing and OAM testing.
•  Writing TTCN3 script for addition of new test cases or modification of existing TTCN3 scripts for new feature.
•  Software package installation and commissioning of RNC & NodeB.
•  Configuration of the Nodes viz. RNC & NodeB according to the test case requirements.
•  Test plan development, execution, log analysis, bug reporting and tracking.
•  Impact Analysis of new feature on existing functionality.
•  Working with multiple teams for different program blocks, at different locations and time zone.
•  Customer/Field issue reproduction in lab and fix verification.
•  Worked on 3GPP features like DC-HSDPA, MIMO, 64-QAM DL, F-DPCH, 16QAM UL

Aug 2007 – Jan 2008 · 5 mos · Noida, Uttar Pradesh, India

• Service support for Bharti Airtel and Ericsson India System and Networks issues as part of IBM technical Support team