Xincheng Lai
Senior Software Engineering Manager at PayPal
Sunnyvale, California, United States
Summary
👤
Senior🎓
Top SchoolXincheng Lai is a Senior Software Engineering Manager in Sunnyvale with 11 years of experience building large-scale personalization and agentic AI systems, currently leading Product AI efforts at PayPal. He has progressed from founding engineer at Jetlore to tech lead and manager roles, designing feature stores, recommender systems, AIMLOps, and commerce agents used across omni-channel experiences. Xincheng combines hands-on engineering—Scala/Java/Python, big data, Spark, Kafka, AWS—with product-focused leadership that turned early personalization prototypes into mission-critical internal platforms. He’s fluent at bridging research and production, shepherding ML models and infrastructure from experiments to scalable services. A subtle strength is his background spanning both hardware-aware systems work and distributed software, giving him a pragmatic systems-first perspective on ML infrastructure.
11 years of coding experience
9 years of employment as a software developer
Bachelor of Science Electrical and Electronics Engineering, Bachelor of Science Electrical and Electronics Engineering at Communication University of ChinaMaster of Science Computer Engineering, Master of Science Computer Engineering at Syracuse University
English, Chinese
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (8)
filtering4
angularjs4
sorting4
filter4
angular3
masonry2
directive2
lintcode1
Programming languages (1)
Github contributions (5)
AlexLai1990/LintCode_OJ_-_-
Dec 2014 - Mar 2015
Contributions:147 commits, 47 pushes in 3 months
onlinejudgelintcode
AlexLai1990/Python
Oct 2014 - Mar 2015
Contributions:9 commits, 8 pushes in 5 months
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.