Junjun Zhang
Director, Architecture at American Express
Hangzhou City, Zhejiang, China
Summary
👤
Senior🎓
Top SchoolJunjun Zhang is a seasoned Director of Architecture with two decades of hands-on experience designing and operating high-availability middleware and messaging platforms for large enterprises, currently leading architecture at American Express in Hangzhou. He combines deep expertise in application servers (WebSphere, WebLogic, JBoss, Tomcat), messaging systems (Kafka, RocketMQ, RabbitMQ, Tibco), Nginx/OpenResty with Lua for dynamic routing, and robust monitoring and infrastructure tooling to optimize performance and reduce costs. His career includes large-scale modernization and capacity projects at Deutsche Bank and payment platform leadership roles at Lianlian Pay and Jollychic, where he successfully shrank infrastructure footprint without impacting performance. Equally comfortable in Unix/Solaris operations, virtualization, and database/RAC environments, he brings practical coding skills across C/C++, Java, Python and shell scripting to rapidly prototype and troubleshoot complex systems. Known as a pragmatic technical lead and incident “last resort,” he blends architecture vision with operational rigor and a proven track record of delivering resilient, high-throughput payment systems.
10 years of coding experience
9 years of employment as a software developer
Bachelor, Eletricity Power System, Bachelor, Eletricity Power System at Nanjing University of Science and Technology
English, Chinese
Github Skills (46)
ubuntu9
hosts9
kernel-module9
realtek8
fedora8
debian8
centos8
ide8
codegen8
openvpn8
google8
synology7
java7
driver7
bash7
Programming languages (11)
Github contributions (5)
topcheer/Xray-core
Dec 2021 - Nov 2023
Xray, Penetrates Everything. Also the best v2ray-core, with XTLS support. Fully compatible configuration.
Contributions:3 pushes in 1 year 11 months
everythingproxysecurityvpntls
topcheer/v2-ui
Mar 2021 - Jul 2021
支持多协议多用户的 v2ray 面板，Support multi-protocol multi-user v2ray panel
Contributions:2 pushes, 1 branch in 4 months
multi-protocolvpnpanelmulti-userv2ray
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.