Junkai Xue
Senior Staff Software Engineer at The Apache Software Foundation
Sunnyvale, California, United States
Summary
👤
Senior🎓
Top SchoolJunkai Xue is a Senior Staff Software Engineer with 11 years of experience building and operating large-scale distributed systems, currently at Pinterest in Sunnyvale. He has led cluster and stateful system orchestration at LinkedIn—overseeing Apache Helix, Zookeeper, quota and cluster management for 100+ applications—and serves as VP and PMC chair for Apache Helix at the Apache Software Foundation. Junkai combines deep systems design (consistent hashing, CRUSH algorithms, distributed transition cancellation) with cloud-native migration experience for stateful platforms like Pinot, Espresso, Venice and Gobblin. He holds a PhD in Mechanical Engineering and Materials Science from Duke, an uncommon academic background that informs his rigorous, research-driven approach to infrastructure reliability and scalability. An active open-source leader, he drives Helix’s technical direction while balancing hands-on implementation and cross-team operational responsibilities.
11 years of coding experience
10 years of employment as a software developer
PhD of Mechanical Eng, and Materials Sci, PhD of Mechanical Eng, and Materials Sci at Duke UniversityBachelor, Materials Science and Engineering, Bachelor, Materials Science and Engineering at Nanjing University of Technology
Chinese
Github Skills (15)
data-stream10
big-data10
realtime10
apache10
helix10
datastore10
java10
apache-flink9
pinot9
apache-pinot9
olap8
spark6
apache-hadoop5
zookeeper5
hadoop4
Programming languages (1)
Github contributions (5)
misselvexu/helix
Apr 2018 - Feb 2019
Mirror of Apache Helix
Contributions:4 commits in 10 months
javahelixapache
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