Big data, Machine Learning, Maps, Fintech and much more.

Design and implement digital content e-commerce and delivery systems across different cloud platforms and devices. Have made major contributions during company’s shift from device centric business model to service centric model.• Contents protection with Digital Rights Management (DRM), server/client integration and deployment.• New rich Shop experience migration from GPB and native UI to REST and web UI. • User experience and Search customization. Data aggregation.• Database migration, OracleDB SQL to MongoDB. • Device analytics integration with Localytics and Apptimize.• New Web Reader technologies with EPUB2/3, Adobe Folio and DRP.• Cloud service migration for legacy devices.• Wishlist cloud API.• Windows 8 and Surface Tablet device and cloud integration.• Nook Press publishing platform.

Started in a small company gate5 Inc, worked directly with executive management, and with different globally distributed teams, as well as worldwide customers. Have been instrumental to the success of the company leading to the acquisition to provide map and navigation to mobile devices and the web. Proud of being a contributor to major components on hundreds of millions of devices, and portals such as Yahoo, bing and Here.com.• Implemented map service APIs for heterogeneous networks. Client-side asynchronous data fetching to reduce map latency.• Rewrote geo-store access and node caching layer that is essential for mobile clients. Satellite and hybrid view implementation, with fallback to different zooms.• Improved fonts, street names and highway labeling. Integrate SVG rendering. Provided configuration tool for customizing map look and feel. • OpenGL/ES, openVG implementation of map rendering. • Unicode transliteration and internationalization, POI decoding and searching. • Overhauled the memory management subsystem for core client libraries.• 3D perspective view. Moved the whole graphics system from palette mode to 32-bit color. Rewrote polygon anti-aliasing with sub-pixel mode for better visual and faster rendering.

Responsible for multi-media content delivery, streaming, and high-value content protection with DRM. Engaged in designing, planning of new software solutions and road map. Interacted directly with customers, partners. Provided guidance and training to professional service and sales/marketing personnel.• Deployed distributed Digital Rights Management (DRM) with MD5, Rijndael encryption which integrates server-side CGI/Perl, ActiveX .NET and client-side AJAX technologies.• Architect for generic DRM solution based on Open Mobile Alliance (OMA) standard.• New features to the Windows Media Server network including Server Side Play-list, performance monitoring plug-in.

Implemented software platforms for TV set-top boxes that enable content authoring, application and game developing to give the integrated Digital TV experience. • TvNavigator 5 – The next generation middle-ware platform. Designed the new Liberate Lightweight Porting Interface (LPI). Responsible for kernel part, application lifecycle management, socket and graphics, etc. Implemented HTTP stack, and its alternative, IP-Conduit, a transport protocol for low bandwidth, low reliability networks.• COX/SA TvMicro - A Java application platform with microVM engine. Certified with Sun's CLDC profile. Implemented feature and performance enhancement for the virtual machine. Also developed on resident applications of microMail, uBrowser and TvGuide/VOD app.• Integrated MacroMedia Flash to set-top devices, which can stand alone as a multi-media subsystem. Features include animation, button action, macro scripting and embedded JavaScript, layering and interacting with different flashes, MIDI sound and MP3 codec.• AOLTV – Was one of the leading engineers responsible for the release.• TvBar - A comprehensive pop-up menu system.

Designed complex algorithms and built digital map databases for embedded in-car navigation devices as well as desktop and web applications. Migrated path-finding from single-threaded model to multi-thread. Performance optimization with MapTree implementation using KD decomposition and Hilbert curve. Map Rendering, Dual-level routing.