Experienced Windows develper in many feature areas. Work in the following areas was done targetting Windows CE products: Windows 2D graphics (GDI, DDraw, Blt's, Win32 API) Windows multimedia (DirectX, DirectShow, Media Foundation, video playback) Patent granted for video playback validation system done using OCR based frame identification Windows fonts integration and cleartype support Windows printing integration Windows encoder integration (DShow filters) Windows Media Center DVR engineThe following work was done for Windows Phone: Windows Phone Camera application, middleware, and drivers Windows Phone Cellular Voice integration Windows Phone FM radio integration Windows Phone audio routing systemWork in the following areas was done targetting Desktop Windows OS: Windows Audio endpoint selection process Windows Audio OS upgrade process Windows Audio middleware, WASAPI, MMDevAPI, KS Windows Audio drivers WDM, WDF, PortCLS, USB Audio, new windows audio driver architectures Windows Audio APO's, APO/Driver communication infrastructure Windows Voice assistant integration (Windows Voice Activation DDI) Windows Midi, Win32 & WinRt API, USB & BLE midiLived in Beijing for 6 months mentoring junior engineers.