Tibor Zimányi
Principal Software Engineer, OpenShift Serverless Logic, Apache KIE Sonataflow
Levice, Region of Nitra, Slovakia
Summary
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Rockstar🎓
Top SchoolTibor Zimányi is a Principal Software Engineer with 11 years of experience building and leading work on cloud-native business automation, currently driving OpenShift Serverless Logic (Apache KIE Sonataflow) at IBM. He combines deep backend expertise in Java, SQL and persistence layers with a strong open-source footprint as a longtime contributor and PPMC member of the Apache KIE community, notably improving Drools, jBPM and Kogito runtimes. His hands-on contributions include database driver handling and schema/upgrade optimizations (PostgreSQL/EDB, bigint migrations, new indexes) as well as DMN integration and test hardening across KIE projects. Experienced in both engineering and QE leadership at Red Hat, he bridges product-quality practices with core engine development and standards work (former DMN RTF member). Based in Levice, Slovakia, he pairs pragmatic system-level improvements with community stewardship that often goes unseen in polished releases.
11 years of coding experience
20 years of employment as a software developer
Gymnázium Andreja Vrábla LeviceMaster's degree applied informatics, Master's degree applied informatics at Univerzita Konštantína Filozofa v NitreBachelor's degree applied informatics, Bachelor's degree applied informatics at Constantine the Philosopher University in Nitra
Stackoverflow
307reputation
18kreached
25answers
1question
Github Skills (26)
jbpm10
testing10
drools10
workflow-engine10
java10
rule-engine10
javas10
sql10
bpmn10
maven10
postgresql9
dmn9
databases9
database-design9
data-integration9
Programming languages (11)
Github contributions (5)
apache/incubator-kie-drools
Apr 2016 - Jan 2023
Drools is a rule engine, DMN engine and complex event processing (CEP) engine for Java.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:238 reviews, 193 commits, 332 PRs in 6 years 10 months
Contributions summary:Tibor's commits primarily involve modifying and removing code related to license headers and database driver handling. Their contributions include adding PostgreSQL and EnterpriseDB (EDB) driver handling to the PersistenceUtil.useTransactions() method. Furthermore, the user migrated various tests related to the Query Engine from the QE engine regression test suite. This suggests a focus on backend development and database integration within the Drools engine.
droolsbusiness-rulesdmn-engineevent-processingcomplex-event-processing
apache/incubator-kie-kogito-runtimes
Apr 2016 - Sep 2019
Kogito Runtimes - Kogito is a cloud-native business automation technology for building cloud-ready business applications.
Role in this project:Back-end Developer
Back-end DeveloperContributions:84 reviews, 162 commits, 96 PRs in 3 years 5 months
Contributions summary:Tibor primarily focused on code maintenance and refactoring within the Drools and jBPM projects, specifically addressing licensing headers, database driver handling, and migrating tests. Their contributions involved modifying Java code across various sub-projects within the Kogito Runtimes repository, indicating a focus on core engine and integration improvements. These changes likely improved code maintainability and test coverage within the business automation technology.
kogitoknativebusiness-automationrule-enginedrools
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