Ronald Konjer
Software Engineer at Compare Group
Zwolle, Overijssel, Netherlands
Summary
👤
Senior🎓
Top SchoolRonald Konjer is a pragmatic software engineer based in Zwolle with 11 years of hands-on experience building backend systems and e-commerce platforms. Currently at Compare Group, he brings a blend of Java/Hybris product ownership and hands-on development from prior roles at HANOS and Valtech. He contributes to open-source tooling—most notably improving an Elasticsearch dynamic synonym plugin by upgrading it to 7.4, hardening remote file handling and tightening resource cleanup—showing attention to reliability and maintainability. His background spans marketing, product ownership and even military communications training, which informs a disciplined, cross-functional approach to problem solving. Ronald pairs formal study in computer software engineering with practical experience shipping production systems and improving observability and logging for resilient services.
11 years of coding experience
5 years of employment as a software developer
Propedeuse Marketing and Communications, Propedeuse Marketing and Communications at Leidse Onderwijs InstellingBachelor's degree Computer Software Engineering, Bachelor's degree Computer Software Engineering at Open UniversiteitHAVO Natuur en Techniek + Economie totaal, HAVO Natuur en Techniek + Economie totaal at MeanderBachelor of Commerce (B.Com.) Marketing and Communication, Bachelor of Commerce (B.Com.) Marketing and Communication at Windesheim
Dutch, English, German
Github Skills (8)
javas10
elasticsearch10
elasticsearchquery10
aws-elasticsearch10
java10
elasticsearch-api10
amazon-elasticsearch10
logging9
Programming languages (3)
Github contributions (5)
bells/elasticsearch-analysis-dynamic-synonym
Mar 2020 - May 2022
The dynamic synonym plugin adds a synonym token filter that reloads the synonym file(local file or remote file) at given intervals (default 60s).
Role in this project:
Back-end Developer
Back-end DeveloperContributions:9 commits in 2 years 2 months
Contributions summary:Ronald primarily focused on enhancing the functionality of the dynamic synonym plugin for Elasticsearch. Their work included upgrading the plugin to Elasticsearch 7.4.0, modifying logging levels for efficiency, and addressing potential issues in remote synonym file handling. They also made explicit close for ClosableHttpResponse method and cleanup committed code.
synonymtokenplugin60sanalyzer
CompareGroup/elasticsearch-analysis-dynamic-synonym
Mar 2020 - Nov 2025
The dynamic synonym plugin adds a synonym token filter that reloads the synonym file(local file or remote file) at given intervals (default 60s).
Contributions:6 releases, 2 PRs, 15 pushes in 5 years 8 months
synonymtokenplugin60sfilter
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