Stepan Vavra
Software Engineer at AppDynamics
Prague, Czechia
Summary
🤩
Rockstar🎓
Top SchoolStepan Vavra is a seasoned software engineer with 14 years of experience building reliable Java-based middleware, microservices platforms and CI-driven delivery pipelines from Prague. He has driven core backend work at Oracle—helping design Jersey and a reactive Webserver API using JDK9 Flow—and currently contributes to production-grade observability and performance tooling at AppDynamics. Stepan’s strength is hardening complex server-side systems for stability and scalability, evidenced by open-source fixes to Jersey that eliminated startup hangs, memory leaks and async thread issues. Comfortable across the full lifecycle from low-level concurrency bugs to cloud PaaS integration, he blends deep Java EE/Spring expertise with pragmatic CI/CD and deployment automation. Colleagues rely on him to identify brittle components, design resilient APIs and turn stress/reliability insights into measurable platform improvements.
14 years of coding experience
10 years of employment as a software developer
Bachelor of Science (BSc), Computer Science, Software Engineering, IT System Architecture, Bachelor of Science (BSc), Computer Science, Software Engineering, IT System Architecture at Charles University in Prague Faculty of Mathematics and PhysicsMaster of Science (MSc), Computer Science, Master of Science (MSc), Computer Science at Charles University in PragueHigh school diploma, Math, Physics, High school diploma, Math, Physics at Gymnazium Christiana Dopplera
English, Czech
Stackoverflow
4,004reputation
1.4mreached
50answers
18questions
jetty
top-5%
design-patterns
top-5%
ansible
top-5%
maven
top-5%
ssh
top-5%
java
top-5%
Github Skills (26)
java10
javas10
rest-api10
jersey-framework10
async9
debug9
asynchronous9
debugging9
ansible9
command-prompt9
performance-optimization9
design-patterns9
osgi9
jetty9
ssh9
Programming languages (7)
Github contributions (5)
javaee/jersey
May 2015 - Jun 2017
This is no longer the active Jersey repository. Please see the README.md
Role in this project:
Back-end Developer
Back-end DeveloperContributions:1 release, 55 commits, 6 PRs in 2 years 1 month
Contributions summary:Stepan primarily addressed issues related to the Jersey framework's core functionality, specifically focusing on stability and performance. Contributions include fixing a Servlet container hanging on startup due to infinite loops and preventing memory leaks by shutting down all ServiceLocators. The user also worked on resolving thread-stuck issues in async responses and improved monitoring capabilities, further enhancing the framework's reliability. These contributions demonstrate a strong focus on improving the foundational aspects of the Jersey back-end.
groovyswtosgijerseyaem
stepanv/micronaut-core
Feb 2020 - Dec 2022
Micronaut Application Framework
Contributions:8 pushes, 12 branches in 2 years 10 months
micronautframeworkapplication-frameworkmicroservicesjava
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