Zoltán Chovan
Senior Software Engineer at The Apache Software Foundation
Budapest, Hungary
Summary
👤
Senior🎓
Top SchoolZoltán Chovan is a Senior Software Engineer based in Budapest with 11 years of experience spanning PHP web stacks, Java/Spring backends, and JavaScript frontends. He has progressed from Symfony and CakePHP development to leading small Agile teams at Ericsson and driving backend engineering at Cloudera. An active open-source contributor and Kudu committer, Zoltán has made substantive contributions to high-profile Apache projects such as Hive and Kudu—adding HiveServer2 web UI features, Postgres metastore fixes, and stability/configurability enhancements to Kudu clusters. He combines hands-on implementation of database and server-side features with practical tech leadership and mentoring, and is comfortable shipping across the full stack in production environments. An understated strength is his ability to translate deep system internals into observable, operable features (e.g., dynamic log-level control and exposed transaction/lock visibility) that improve debuggability and operations.
11 years of coding experience
7 years of employment as a software developer
Bachelor's degree, Computer Engineering, Bachelor's degree, Computer Engineering at Budapest University of Technology and Economics
English
Github Skills (14)
javas10
hive10
big-data10
c-language10
cprogramming-language10
apache10
sql10
java10
thrift9
database9
testing9
postgresql9
databases9
webserver8
Programming languages (3)
Github contributions (5)
apache/kudu
Jul 2021 - Jan 2023
Mirror of Apache Kudu
Role in this project:
Back-end Developer
Back-end DeveloperContributions:12 commits, 1 comment in 1 year 6 months
Contributions summary:Zoltán contributed to the Apache Kudu project by implementing and modifying server-side components. They added a health check endpoint to the webserver and incorporated logging for Hive Metastore URI connections. The user also modified the code to allow the cluster to start with a different number of masters, and made several test-related changes. The user worked on improving the Kudu cluster's stability and configurability.
kuduapachebig-datajavaapache-kudu
apache/hive
Sep 2018 - Mar 2021
Apache Hive
Role in this project:Back-end Developer
Back-end DeveloperContributions:13 reviews, 16 commits, 15 PRs in 2 years 6 months
Contributions summary:Zoltán contributed to the Apache Hive project by implementing features and fixing bugs related to the HiveServer2 web UI and the Postgres Metastore. Their work involved adding functionality for dynamically configuring log levels within the web interface and addressing issues with schema handling in the Postgres database backend. They also exposed locks and transactions in the sys db, added schema changes, and updated Kudu table storage handlers. The user demonstrated a strong understanding of Hive's internal workings and the related database interactions.
flinksqlapachebig-dataspark
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