Kentaro Yoshida
Senior Data Engineer
Tokyo, Japan
Summary
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RockstarKentaro Yoshida is a Senior Data Engineer based in Tokyo with 14 years of experience building and operating data platforms for startups and enterprise customers. He moved from co-founding Livesense to leading data engineering at Treasure Data and now drives data initiatives at Commune Inc., blending hands-on engineering with product-minded delivery. His work spans backend systems, parser robustness, and QA—evidenced by contributions to the CNCF-hosted Fluentd project where he improved TextParser time handling and test coverage. Kentaro is pragmatic about maintainability and observability, often improving logging and error handling to make systems easier to run in production. Colleagues rely on him to translate messy real-world data requirements into reliable ingestion and processing pipelines.
14 years of coding experience
19 years of employment as a software developer
Github Skills (7)
logging10
ruby10
collector9
testing9
data-collection9
fluentd9
regular-expression7
Programming languages (12)
Github contributions (5)
fluent/fluentd
Apr 2013 - Oct 2014
Fluentd: Unified Logging Layer (project under CNCF)
Role in this project:
Back-end Developer & QA Engineer
Back-end Developer & QA EngineerContributions:7 commits, 4 comments in 1 year 6 months
Contributions summary:Kentaro's contributions primarily revolve around improving the Fluentd parser functionality and associated tests. They implemented changes to the `TextParser` class, including handling of time keys and formats, adding default time key for LTSVParser, and improving error handling. Moreover, the user made critical updates to test cases to ensure the correct behavior of the parsers, particularly for different formats. They also modified logging messages for better debugging, demonstrating a focus on code quality and maintainability.
fluentdloggingdata-collectorrubycncf
y-ken/fluent-plugin-mysql-query
Oct 2012 - Mar 2018
Fluentd Input plugin to execute mysql query and fetch rows. It is useful for stationary interval metrics measurement.
Contributions:32 commits, 8 PRs, 11 pushes in 5 years 5 months
fluentdmysql
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