Zhongjun Jin
Software Engineer at TikTok
San Jose, California, United States
Summary
👤
Senior🎓
Top SchoolZhongjun Jin is a software engineer with 11 years of experience, currently building query engine and database technologies on TikTok’s Data Platform in San Jose/Bellevue. He holds a PhD from the University of Michigan, where he was co-advised by Mike Cafarella and H. V. Jagadish and developed interactive data-preparation systems using program synthesis, ML-guided combinatorial search, and data profiling. His background spans industry research and product work—from Microsoft Research and Trifacta (where his intelligent data-cleaning feature shipped in Trifacta Cloud) to internships at Qualcomm—bridging research ideas and production systems. He’s especially interested in improving productivity for data scientists and non-expert users via runtime/engine innovations and hardware-software co-design. Notably, he combines deep academic rigor with hands-on engineering of high-scale query engines in consumer-facing data platforms.
11 years of coding experience
6 years of employment as a software developer
Doctor of Philosophy (Ph.D.), Computer Science, Doctor of Philosophy (Ph.D.), Computer Science at University of MichiganElectrical and Electronics Engineering, Electrical and Electronics Engineering at Tianjin UniversityBachelor's Degree, Computer Science, Mathematics, Bachelor's Degree, Computer Science, Mathematics at Purdue University
Github Skills (29)
trino10
sql-query10
spark10
big-data10
hadoop10
data-management10
java10
hive10
sql10
data-processing10
query-engine10
cpp10
presto10
database10
acceleration9
Programming languages (4)
Github contributions (5)
markjin1990/markjin1990.github.io
Dec 2016 - Jan 2024
Contributions:147 pushes, 1 branch in 7 years 1 month
markjin1990/velox
Feb 2022 - Jul 2023
A new C++ vectorized database acceleration library aimed to optimizing query engines and data processing systems.
Contributions:2 PRs, 26 pushes, 6 branches in 1 year 4 months
queryvectorizedcppdata-processingacceleration
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.