Sergii Bishyr
Senior Software Engineer at Hazelcast
Ukraine
Summary
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Rockstar🎓
Top SchoolSergii Bishyr is a Senior Software Engineer from Ukraine with a decade of experience building backend systems in Java, currently contributing to Hazelcast's real-time data platform where he focuses on Kubernetes integration, discovery plugin robustness, and SPI refactoring. He progressed from web development to specialized Java roles at Yukon Software and Lohika before joining Hazelcast in 2020, bringing solid distributed-systems expertise and a practical engineering mindset. Sergii is an avid learner who consistently deepens his skills through open-source contributions to a well-known project (hazelcast/hazelcast), demonstrating both production-grade code changes and testing improvements. Colleagues rely on him for improving integration points and unifying platform components, reflecting a balance of hands-on coding and system-level thinking.
9 years of coding experience
8 years of employment as a software developer
Спеціаліст, Computer Software Engineering, Спеціаліст, Computer Software Engineering at ЧНУ ім. Ю. Федьковича
Английский, Русский, Украинский, Румынский, Italian, Japanese
Stackoverflow
8,471reputation
1.3mreached
124answers
36questions
spring-boot
top-5%
java
top-1%
spring
top-5%
dependency-injection
top-5%
lambda
top-5%
unit-testing
top-5%
Github Skills (24)
kubernetes10
hazelcast10
distributed-systems10
java10
javas10
kubernetes-pods10
unit-testing9
spring9
spring-boot9
junit9
lambda9
dependency-injection9
mockito9
api8
integrations8
Programming languages (14)
Github contributions (5)
hazelcast/hazelcast
Mar 2021 - Oct 2022
Hazelcast is a unified real-time data platform combining stream processing with a fast data store, allowing customers to act instantly on data-in-motion for real-time insights.
Role in this project:
Backend Developer
Backend DeveloperContributions:67 reviews, 39 commits, 50 PRs in 1 year 8 months
Contributions summary:Sergii primarily contributed to the Hazelcast codebase by modifying various Java files. Their work involved changes related to Kubernetes integration, including configuration, client interaction, and API calls. Several commits focus on testing and fixing issues within the Kubernetes discovery plugin, as well as refactoring and unifying SPI code, showing a focus on improving the system's robustness and integration capabilities.
computationstream-processingbigtablereal-timestreaming-data
SeriyBg/hazelcast
May 2021 - Aug 2023
Open Source Streaming Data Platform
Contributions:100 pushes, 14 branches in 2 years 2 months
streaming-datahazelcaststreamingbig-datastream
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