Haoyang Chen
Java Developer at meituan
Beijing, United States
Summary
🤩
Rockstar🎓
Top SchoolHaoyang Chen is a Java developer with nine years of experience building reliable, high-throughput backend systems and distributed architectures. He has hands-on production experience at Meituan designing fault-tolerant delayed task systems combining thread pools, Kafka persistence, DLQs and distributed retries to achieve >99.99% execution reliability and scale to 1k QPS with strong redundancy. His work reduced redundant RPCs by ~87% through idempotency interception and improved rollout safety with factory strategy patterns and canary controls. Academically grounded with an MEng from UIUC and a background in electronic science from Zhejiang University, he also explored 3D scene editing and NeRF-related research as a research assistant. On GitHub he documents deep dives into Java internals—classloaders, Tomcat startup and collection diagrams—demonstrating an unusual blend of system architecture, developer tooling, and clear technical communication.
9 years of coding experience
1 year of employment as a software developer
Master of Engineering - MEng, Computer Engineering, Master of Engineering - MEng, Computer Engineering at University of Illinois Urbana-ChampaignBachelor of Engineering, Electronic Science and Technology, Bachelor of Engineering, Electronic Science and Technology at Zhejiang University
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (11)
tomcat10
javas10
jvm10
system-design10
diagramming10
java10
osdev9
macos9
spring-boot8
database7
databases7
Programming languages (7)
Github contributions (5)
c-rainstorm/blog
Jan 2017 - Sep 2022
本仓库存放个人博客的 markdown 源文件
Role in this project:
Back-end Developer & System Architect
Back-end Developer & System ArchitectContributions:128 commits, 2 PRs, 126 pushes in 5 years 9 months
Contributions summary:Haoyang primarily contributes to the repository by creating and modifying diagrams that explain architectural and operational concepts of various Java technologies. Their work focuses on visualizing and documenting Tomcat's internal workings, including classloader mechanisms, startup processes, and request handling. The user has also created class diagrams detailing various Java collection framework concepts, indicating expertise in system design and Java back-end development.
tomcatjvmdatabasejavamarkdown
c-rainstorm/Resume
Mar 2017 - Mar 2021
Contributions:11 commits, 11 pushes, 1 branch in 4 years
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