Zhijie is now working at Data Infra Team of Facebook, and is responsible for data infrastructure efficiency optimization. Previously, he was a Member of Technical Staff at Hortonworks, focusing on Hadoop YARN, which is the resource management system for various Hadoop ecosystem workloads. Other than YARN, Zhijie was also actively working other open source projects, such as MapReduce, Pig and Samza, and therefore became the committer and PMC of Hadoop and Samza, and the member of Apache Software Foundation. Prior to Hortonworks, Zhijie was working as a Software Development Engineer at Microsoft, working on the cloud-based file synchronization service. Zhijie was awarded a PhD degree in Co...