Worked with News recommendation team to optimize the ranking result and user experience, including1. Onboard web content into catalog2. Optimize local news in main feeds and sperate vertical product3. Build metrics and ranker to help publisher/creator success.4. Optimize cold start by model & experience improvementWorking with UX and Segment team to optimize the whole page experience, including:1. Design and build layout & placement layer to optimize E2E experience of feeds product2. Optimize feeds product in Mobile with unify models and different template & layout3. Optimize segment ranking to balance business growth and user experience

1. Set up product line for financial enterprise market; designed, developed and deployed Modeling.AI for financial customers with team2. Built up team with 50+ members of multiple disciplines (Analyst, PM, UX, Dev and Test) 3. Contributed millions of revenue by signing contracts with top customers

1. Designed and developed Top Story, a news feed App with more than 20M MAU. It was published on 20 markets and ranked the first on IOS productivity list at Russia and Turkey2. Grew PV from 5 to 17+ by upgrading recommendation strategy with A/B Testing and BI analysis

1. Developed Webzine, a news recommendation System for Dolphin Brower, published more than 10K unique news every day within 1 minute latency for P902. Built up development team with 10+ members of engineer of algorithm, spider and backend service

1. Designed and Developed UDNS, a cross-platform GUI suites supporting several browsers and both of VML, SVG GUI Engine, to improve web page reacting speed by 30%2. Upgraded Casher System of HIS, to integrate with Social Security System and refactor 10+ modules to improve Reusability3. Improved QPS of master database and scheduler to 3000 by upgrading index and structure4. Designed and developed CNS Logging System on 16TB log data, which processed daily data in 4 hours and support Ad hoc query in 1 minute on the average