The appointment of Yang, formerly with GroupM Interaction China, first leaked in March.
As CEO, Yang will report to Vincent Digonnet, APAC executive chairman, and will be tasked with leveraging technology, social media, e-commerce, data services, and experience design for brand-building capabilities.
With almost 10 years experience in China, Yang has also worked and lived in the US and Korea. Prior to Razorfish, she managed operations for GroupM Interaction China from 2006 to 2008 and founded the UniQlick data-management platform.
Meanwhile, the agency has promoted Hew Lee Yee to chief operating officer for Greater China. Hew was formerly managing director for China and will now be based out of Hong Kong. Her role has expanded from multinational client account lead to office management.
Razorfish China has more than 300 employees in Shanghai, Beijing, and Guangzhou.