Chuanying Du is the architect of the Infrastructure team in Sina Weibo, one of the most popular sites in China, in use by well over 500 million users, with a similar market penetration that Twitter has established in the USA.
Architect and core developer of Weibo Counter Service, which store more than 100 billion counters and process much more than 2 million requests(read + write) per second at a very low cost.
Tech Leader and main developer of Baidu App Engine, a platform as a service (PaaS) cloud computing platform for developing and hosting web applications in Baidu-managed data centers. Chuanying designed and implemented Baidu App Engine from scratch.
Tech Leader and main designer of Baidu Personal Cloud Storage, an online file storage web service offered by Baidu, akin to Amazon's Simple Storage Service.
One of the chief designers/committers of an MVC application framework named NGUI.