Zhijun Ren
Principal Software Engineer at Oracle
Haidian District, Beijing, China
Summary
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Senior🎓
Top SchoolZhijun Ren is a Principal Software Engineer based in Haidian District, Beijing, with 10+ years of hands-on experience building cloud-native, distributed systems and enterprise middleware. At Oracle he drives R&D across Go, Kubernetes, Istio/service mesh, ELK/Prometheus observability and CI/CD, while retaining deep JVM and Java EE roots from earlier roles. He combines systems-level debugging on Unix/Solaris and release leadership with practical big-data and streaming experience (Spark, Hadoop, Kafka, AWS Kinesis). An open-source steward, he administers key Java web projects like JSTL and Mojarra, reflecting a long-term commitment to the Java web ecosystem. Known for bridging legacy application servers (WebLogic, Tomcat, Glassfish) with modern microservices and functional programming techniques, he excels at turning complex operational needs into reliable, observable platforms.
10 years of coding experience
9 years of employment as a software developer
Bachelor's degree, Mathematics, 4, Bachelor's degree, Mathematics, 4 at East China Normal UniversityMaster of Computer Applications (M.C.A.), Computer Science, Master of Computer Applications (M.C.A.), Computer Science at Tianjin University
English, Chinese
Stackoverflow
1reputation
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Github Skills (17)
minecraft10
archived10
groovy10
foundation10
git-submodules10
javaee10
weblogic10
java10
location10
oracle10
mojarra10
specification10
eclipse10
jetty10
hugo9
Programming languages (2)
Github contributions (5)
ren-zhijun-oracle/specifications
Jul 2019 - Aug 2019
Documentation base for Specification pages be published at jakarta.ee via Hugo and git submodules
Contributions:37 pushes, 2 branches in 1 month
hugooracle-databasespecificationtlasubmodules
ren-zhijun-oracle/jstl-api
Jul 2019 - Jul 2019
Contributions:5 pushes, 1 branch in 1 day
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