Yishi Liu
Model Developer, Risk Compliance Department at China UnionPay Merchant Services Co.,LTD.
Shanghai, Shanghai, China
Summary
👤
Senior🎓
Top SchoolYishi Liu is a model developer with eight years of experience applying Python, SQL and machine learning to financial risk and AML problems, currently working in China UnionPay’s Risk Compliance Department. He built end-to-end AML systems, standardized large-scale merchant and transaction datasets, and led novel applications of decision trees and Graph Neural Networks to raise high-risk merchant detection and anomaly precision. Combining a computer science background from Wuhan University of Technology with Financial Engineering studies at NYU, he bridges production engineering and quantitative finance across payments and asset management internships. Notably, he architected a DGL-based GNN for cross-merchant transaction chains—demonstrating both research curiosity and practical impact by cutting processing time and improving detection rates.
8 years of coding experience
Master's degree, Financial Engineering, Master's degree, Financial Engineering at NYU Tandon School of EngineeringBachelor's degree, Finance, General, Bachelor's degree, Finance, General at Zhongnan University of Economics and LawMaster of Science - MS, Financial Engineering, Master of Science - MS, Financial Engineering at New York UniversityBachelor of Engineering - BE, Computer Science, Bachelor of Engineering - BE, Computer Science at Wuhan University of Technology
Stackoverflow
107reputation
2kreached
4answers
10questions
Github Skills (23)
pytorch7
graph7
deep-learning7
graph-convolutional-networks7
hiveql6
graph-neural-network6
hive6
hive-query6
quartz-scheduler6
batchfile6
java6
cron6
algorithm6
geometric-deep-learning6
geometry6
Programming languages (3)
Github contributions (5)
liulizhi1996/liulizhi1996.github.io
Jun 2020 - Apr 2025
Contributions:38 pushes, 1 branch in 4 years 10 months
liulizhi1996/CBA
Jul 2017 - Mar 2018
Contributions:6 commits, 5 pushes, 1 branch in 8 months
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