Liuyin Cheng
Data Engineer
California, United States
Summary
👤
Senior🎓
Top SchoolLiuyin Cheng is a data engineer with over a decade of experience delivering scalable data pipelines and streaming systems across finance, consumer platforms, and AI. He specialises in data pipeline architecture, streaming processing with Spark, Flink, Presto/Hive, CDC, and Airflow, plus system-level design and SQL/NoSQL data modeling using Python and Java. Currently at Character.AI as a Data Engineer since 2024, he previously served as Senior Data Engineer at Airbnb and Snap Inc., bringing cross-industry data capabilities to production ML workflows. His early work at American Century Investments showcases a hands-on ability to accelerate data preprocessing by 20x for 300GB resources and validate distributed computing in quantitative analysis. Based in California, he holds a MS in CS&E from Santa Clara University and an MS in Industrial Engineering from The Ohio State University, blending rigorous academics with practical, production-focused execution.
11 years of coding experience
10 years of employment as a software developer
Master's degree, Industrial Engineering, Master's degree, Industrial Engineering at The Ohio State UniversityMaster's Degree, Computer Science and Engineering, Master's Degree, Computer Science and Engineering at Santa Clara UniversityBachelor's degree, Automotive Engineering Technology/Technician, Bachelor's degree, Automotive Engineering Technology/Technician at Beijing Institute of TechnologyESIEE Amiens
Chinese, EnglishProgramming languages (1)
Github contributions (5)
LiuyinC/Algorithm_Thinking_projects_applications
Sep 2014 - Oct 2014
Contributions:8 commits in 1 month
LiuyinC/tinygen
Jul 2024 - Feb 2025
Tiny Gen
Contributions:12 PRs, 7 pushes, 8 branches in 6 months
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