Xuchang Chen
Staff Software Engineer at PayPal
San Francisco, California, United States
Summary
👤
Senior🎓
Top SchoolXuchang Chen is a Staff Software Engineer in San Francisco with 11 years of full‑stack experience building resilient web platforms using JavaScript and Java across Node.js, React, and modern backend stacks. He has driven integrations and remediation workflows for security products at ServiceNow and now shapes scalable payment services at PayPal, blending deep backend API design with polished frontend UX. His toolkit spans MongoDB/Postgres/Elasticsearch, testing automation with Selenium and Mocha, and performance optimizations such as client-side caching and progressive loading that materially improved user experience. Comfortable in both startup and enterprise contexts, he repeatedly turns complex integrations (vulnerability scanners, geospatial systems) into reliable, testable features. A pragmatic engineer and self-described dreamer, he combines rigorous engineering practices with a knack for simplifying thorny problems end-to-end.
10 years of coding experience
7 years of employment as a software developer
Bachelor of Applied Science (B.A.Sc.), Electrical and Electronics Engineering, Bachelor of Applied Science (B.A.Sc.), Electrical and Electronics Engineering at East China University of Science and TechnologyMaster of Engineering (M.Eng.), Electrical and Electronics Engineering, Master of Engineering (M.Eng.), Electrical and Electronics Engineering at Stevens Institute of Technology
Chinese, English
Github Skills (7)
cyber-threat-intelligence6
security4
ctf4
threat-intelligence3
cybersecurity3
mitre-attack2
poc2
Github contributions (5)
XYZstudio/xs_web_frontend
Dec 2016 - Jul 2017
Contributions:113 PRs, 126 pushes, 16 branches in 7 months
platform-frontendsportsfrontend
XYZstudio/xs_backend_service
Dec 2016 - Aug 2017
Contributions:116 PRs, 125 pushes, 25 branches in 8 months
djangosportsbackendmongodb
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