Vladimir Dvorak
Czechia
Summary
🤩
Rockstar🎓
Top SchoolVladimir Dvorak is an IT operations leader with 13 years' experience building and running highly available, PCI‑DSS compliant payment systems and multi‑cloud infrastructures from Czechia. He combines hands‑on systems and architecture skills (Linux, JVM, C/C++, Python) with proven people and service management—driving ≥99.99% availability, data‑driven operations, and near‑zero detection‑to‑response times. As Head of IT Operations at AEVI he designed fault‑tolerant alerting and customer notification platforms and streamlined deployment pipelines to accelerate time‑to‑production. His background spans system administration, transition management and solution architecture, and he contributes to JVM internals work (dcevm) focused on sophisticated hotswap/deoptimization flags. Comfortable bridging development and 24/7 operations, he excels at turning complex regulated requirements into auditable, automated workflows.
13 years of coding experience
6 years of employment as a software developer
DiS, Information Systems, DiS, Information Systems at Higher Educational SchoolIng., Information Systems, Ing., Information Systems at University of PardubiceTheory of Informatics, Theory of Informatics at Charles University
English
Stackoverflow
409reputation
31kreached
29answers
2questions
Github Skills (12)
javas10
c-language10
jvm10
cprogramming-language10
java10
maven6
docker6
hotswap6
dcevm6
jsf6
javabeans6
intellij-idea6
Programming languages (10)
Github contributions (5)
dcevm/dcevm
Jun 2014 - Jul 2020
Dynamic Code Evolution VM for Java 7/8
Role in this project:
Back-end Developer
Back-end DeveloperContributions:49 commits, 21 PRs, 22 pushes in 6 years 1 month
Contributions summary:Vladimir's commits focus on implementing and modifying JVM flags and related code within the `dcevm/dcevm` repository. They added support for the `-XX:HotswapDeoptClassPath` flag, enabling more targeted deoptimization during hotswapping. This involved modifications to class file parsing, system dictionary, code cache, and nmethod implementations within the Java Virtual Machine. Further commits addressed minor issues, such as indentation, and propagated the new deoptimization flag appropriately.
dynamic-codejava
HotswapProjects/hotswap-docklands
Mar 2018 - Aug 2019
Java application servers' docker images with DCEVM and HotswapAgent
Contributions:31 commits, 28 pushes, 1 branch in 1 year 5 months
application-serverdcevmdocker-imagejava
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