Sandor Molnar
Principal Engineer I. at The Apache Software Foundation
Georgetown, Texas, Hungary
Summary
🤩
Rockstar🎓
Top SchoolSandor Molnar is a Principal Engineer with 11+ years of backend and distributed systems experience, currently driving core engineering at Cloudera. He is an active Apache PMC/committer—contributing to ZooKeeper, HBase, Ambari and Knox—bringing deep expertise in reliability, security (TLS, authorization hooks) and test-driven refactors for large-scale open-source projects. Sandor’s work spans production-grade filesystems and data platforms, from adding HFile corruption checks and TLS support to implementing synchronization primitives in Alluxio. Based in Georgetown, Texas with roots in Hungary, he combines hands-on code contributions with project governance at the Apache Software Foundation. Colleagues rely on him for pragmatic refactors that improve test stability and observability, a less-visible but high-impact pattern in his open-source record.
11 years of coding experience
19 years of employment as a software developer
MSc in Information Technology, Software development engineer, MSc in Information Technology, Software development engineer at University of Szeged
English, Spanish, Hungarian
Stackoverflow
66reputation
763reached
5answers
0questions
Github Skills (25)
hbase10
back-end-development10
testing10
apache10
java10
javas10
orchestrate10
orchestration10
backend10
security9
zookeeper9
distributed-systems9
documentation9
data-analysis8
database8
Programming languages (9)
Github contributions (5)
apache/zookeeper
Oct 2017 - Mar 2022
Apache ZooKeeper
Role in this project:
Back-end Developer
Back-end DeveloperContributions:190 reviews, 193 commits, 350 PRs in 4 years 5 months
Contributions summary:Sandor primarily focused on improving the Java code of the Apache ZooKeeper project. Their contributions involved addressing compiler warnings related to Java 9, and refactoring existing code using newer methods. They also addressed multiple existing tickets, contributing to bug fixes, updates to the project documentation and adding metrics for monitoring. The user demonstrated a strong understanding of the codebase and addressed the issues with efficient code refactoring.
zookeeperservice-discoverycloudnativeconfiguration-managementapache-zookeeper
apache/hbase
May 2019 - Dec 2022
Apache HBase
Role in this project:Back-end Developer
Back-end DeveloperContributions:163 reviews, 39 commits, 48 PRs in 3 years 7 months
Contributions summary:Sandor primarily contributed to improving the Apache HBase codebase, specifically focusing on test-related enhancements and refactoring. Their work involved modifying existing test cases to address issues such as resource management and closing connections, ensuring more reliable test execution. They also added security headers and implemented improvements to the HFileCorruptionChecker. Furthermore, the user worked on enabling TLS settings for ZooKeeper clients and added authorization hooks.
apache-hbaseapachedatabasejavahbase
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