Managed and analyzed quality issues during full cycle of HTC mobile products (from design to post-launch), worked with cross-functional teams to keep improving product quality, coordinated with Verizon Wireless on quality issues and work together on quality initiatives.• Reduced HTC product portfolio return rate by 30%+ YoY for three consecutive years at Verizon Wireless account.• Constantly monitored product quality through return analysis, CRW return data and HTC repair data, timely communicated quality issue with cross-functional teams, and worked together on effective solution. • Worked closely with HTC internal teams and Verizon Wireless teams to set up yearly quality goals for HTC product portfolio, and successfully built a prediction model for return rate and defect rate.• Analyzed and triaged 1K+ EWP capture units and forum returns, worked with RD teams to identified root causes and solutions, and communicated HTC findings/plan back to Verizon Wireless.

Product Optimization Engineering TeamLed and worked with cross-functional teams to resolve all customer field issues and carriers Quality Center issues, integrated new features, and improved software stability. Delivered multiple software Maintenance Releases (MRs) for mobile products.• Delivered Lab Entry Android 4.0 ICS upgrade software for Motorola Verizon Droid Bionic, which includes software feature integration, upgrade package generation, creating sanity tests plan and the coordination of product regression tests (e.g., battery life, KPI, field test and FOTA stress test).• Managed and analyzed stability issues (e.g., kernel panics, ANRs, tombstones, force-closes and modem panics) from user trials on Motorola Bionic ICS Verizon releases. Led and worked with different technical teams to resolve stability issues. Increased MTTF (Mean Time To Failure) for critical panics from ~300 hours to 2000+ hours.• Analyzed and identified critical issues related to Firmware Over-The-Air update (FOTA) package on Motorola Droid X and Droid2 MRs. Worked with multiple internal teams that optimized firmware update sequence, improved the stability of modem firmware update and re-designed FOTA stress test plan. Decreased customer FOTA failure rate by 50%.

Windows Mobile Product TeamLed a multi-location team to develop and integrate several key software components for the Windows Mobile Moto Q smartphones, which includes secure boot code for Application Processor (AP) and Baseband Processor (BP), RAM downloader application and NAND flash driver. • Led the team that developed the multi-up USB flashing feature in the factory for the Windows Mobile Moto Q smartphone, which dramatically increases the flashing speed in the manufacture process.• Worked with hardware RF team and factory team, tuned up software RF calibration data table to pass Verizon Wireless RF validation tests, CTIA and interoperability lab tests.• Implemented and integrated the interrupt-driven NAND flash driver for Moto Q, it reduced the file system CPU usage by 50% and boosted the performance for many applications such as camera and Internet browser.

CDMA and TDMA Product TeamWorked on product integration and feature development, delivered multiple CDMA and TDMA mobile products.• Designed, Developed and integrated service option re-negotiation features on CDMA T720 and C343 products for the special requirements from Latin America carriers. • Debugged and solved numerous integration problems on audio gain, RF calibration data backup, OTASP call, Push To Talk (PTT) call performance, interoperability tests, browser, and phone book synchronization for T720, C343 and T300p product• Implemented a tool with logic analyzer to do CPU profiling, helping to improve system performance on BREW and UI display driver by 30%.