Sheng is a co-founder and CEO of Rancher Labs. Prior to starting Rancher, Sheng was CTO of the Cloud Platforms group at Citrix Systems after their acquisition of Cloud.com, where he was co-founder and CEO. Sheng has more than 15 years of experience building innovative technology. He was a co-founder at Teros, which was acquired by Citrix in 2005 and led large engineering teams at SEVEN Networks, and Openwave Systems. Sheng started his career as a Staff Engineer in Java Software at Sun Microsystems, where he designed the Java Native Interface (JNI) and led the Java Virtual Machine (JVM) development for the Java 2 platform. Sheng has a B.S. from the University of Science and Technology of China and a Ph.D. from Yale University.