Viacheslav Babanin
Software Engineer at MongoDB
Vancouver, British Columbia, Canada
Summary
🤩
RockstarViacheslav Babanin is a back-end software engineer with nine years of experience building scalable server-side systems, based in the Greater Vancouver area. He contributes to high-profile open-source projects like the official MongoDB Java driver, where he improved time-series bucketing scalability, added aggregation accumulators, and enhanced retry logging for better debuggability. Comfortable working close to the data layer, he focuses on reliability, performance, and practical observability improvements that help teams operate at scale. Known for digging into internal driver mechanics, he brings a pragmatic engineering approach that balances new features with maintainability.
9 years of coding experience
English, Ukrainian, Russian
Stackoverflow
568reputation
72kreached
5answers
3questions
Github Skills (22)
jvm10
admin10
databases10
database-administration10
java10
mongodb-database10
javas10
java-libraries10
mongodb10
database10
kotlin9
scala8
kotlin-library7
concurrency6
spring-boot6
Programming languages (5)
Github contributions (5)
mongodb/mongo-java-driver
Apr 2023 - Apr 2025
The official MongoDB drivers for Java, Kotlin, and Scala
Role in this project:
Back-end Developer
Back-end DeveloperContributions:490 reviews, 211 PRs, 102 pushes in 1 year 11 months
Contributions summary:Viacheslav primarily focused on improving the MongoDB Java driver's internal workings. Their contributions involved adding operation identifiers to retry logs to enhance debugging capabilities, adding support for configurable bucketMaxSpan and bucketRounding options for Time-Series collections. They also improved the scalability of the time-series bucketing and added builders for percentile and median accumulators, enhancing the aggregation functionality.
nosqljava-libraryjvmkotlinjava
vbabanin/unified-test-runner-plugin
Feb 2024 - Sep 2024
Contributions:3 releases, 15 pushes, 3 tags in 7 months
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