Responsible for InApp purchasing, revenue and targeting on two top grossing games: Game Of War and Mobile Strike

Server architectArchitected and developed the infrastructure server framework for all games in Funzio and Gree, which includes authentication, database, memcache, apc, logging, unit test and cross promotionArchitected and developed highly available, low latency and scalable battle matching service using Golang with less than 10ms average response timesImplemented an asynchronous dispatcher backend service that handles millions of requests every hour using node.jsImproved PHP server performance by over 50% through code improvement and better cache architecture

Acquired by GREE

Lead the mobile web team Designed the backend infrastructure and framework for mobile web and support mobile appsGrew mobile usage from 1% to 20% of users in 6 monthsDesigned and speced many mobile web featuresTuned the performance of the mobile web site to be one of the fastest mobile web site in the world, speed up mobile page load time from 50 seconds to under 2 seconds on a mobile phoneDesigned and implemented extremely scalable, secured, robust and high performance APIs for internal external consumptionInternationalized the web site to 22 languagesRedesigned and implemented the photo upload page scratch which resulted in 50% number of photos uploadedRewrote the comments feature that renders in JavaScript that allows users to delete, report and post comments asynchronously Designed and implemented the browse bar feature that increased friend connections by 40% and page views by 20%Rewrote the messaging system used by millions of users daily with AJAX prefetching, multiple delete, report, reply and block users without a page refreshImplemented over 200 script injection automated test cases Fixed script injection security and flash redirect attacks. Fixed site-wide security vulnerabilitiesDesigned and implemented the School/College affiliation feature that lets user search schools with type ahead, connect with other studentsExperienced interviewer at spotting top talent and contributed to team building.

Worked on the Oracle Business Intelligence Presentation Server platform(formerly Siebel Analytics Web server), a high performance, scalable and robust web application server in C++ and JavaDeveloped Web 2.0 applications using innovative technologies like XHTML, AJAX, JavaScript, DHTML, CSS, drag and dropDesigned and implemented the tree browser with drag and drop interface, dynamically fetch the data using AJAX, easy to customize and snappy interfaceImplemented various trees base on xml, catalog based tree and web services

acquired by Oracleworked in the core engineering team