Okkez Okkez - Software Engineer at Repro Inc.

Okkez Okkez

Software Engineer at Repro Inc.

Saitama Prefecture, Japan

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Summary

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Rockstar

🎓

Top School

Okkez Okkez is a seasoned software engineer based in Saitama, Japan with 19 years of experience building reliable backend systems and improving developer tooling. He has a strong track record in the Ruby ecosystem and CNCF projects, contributing to high-profile repos like Fluentd and RubyGems/Bundler where he fixed dependency issues, added tests, and modernized integrations such as aws-sdk v2 for fluent-plugin-s3. At Repro and prior firms he balanced backend development with DevOps and QA responsibilities, often refactoring for maintainability and adding pragmatic features like plugin configuration introspection. His contributions to mruby show attention to language-level behavior and compatibility with CRuby, underscoring deep VM and library knowledge beyond typical application work. Colleagues would note his blend of careful testing discipline and willingness to tackle low-level compatibility and tooling challenges that quietly improve developer experience.

19 years of coding experience

11 years of employment as a software developer

Osaka Prefecture University

Stackoverflow

Stats

455reputation

61kreached

30answers

0questions

Github Skills (29)

apim10

testing10

data-manipulation10

rspec10

configuration-management10

enumerable10

amazon-api10

ruby10

package-manager-tool10

api10

aws10

bundler10

logging10

package-manager10

fluentd10

Programming languages (21)

JavaYaccC++CSSRustCMakefileGo

Github contributions (5)

fluent/fluent-plugin-s3

Jul 2015 - Apr 2021

Amazon S3 input and output plugin for Fluentd

Role in this project:

Back-end Developer & DevOps Engineer

Contributions:3 reviews, 117 commits, 21 PRs in 5 years 9 months

Contributions summary:Okkez primarily contributed to the development and maintenance of the `fluent-plugin-s3` plugin for Fluentd. Their work involved updating the plugin to use the newer aws-sdk v2, including namespace adjustments and API changes. The user also refactored code related to credential handling, implemented tests, and addressed issues related to temporary files and S3 object key formatting.

fluentd-pluginamazonfluentdamazon-s3aws-s3

fluent/fluentd

Aug 2015 - Oct 2020

Fluentd: Unified Logging Layer (project under CNCF)

Role in this project:

Back-end Developer & Core Contributor

Contributions:413 commits, 132 PRs, 3 branches in 5 years 2 months

Contributions summary:Okkez made significant contributions to the Fluentd logging layer project. Their work primarily revolved around enhancing the configuration and functionality of plugins, particularly with the introduction of a new `--show-plugin-config` option. They also focused on refactoring existing code for better readability and maintainability, including improvements to the configuration proxy and testing infrastructure. Moreover, they added new features, such as the addition of a description option for plugin parameters, providing users with more helpful information.

fluentdrubyloggingunified-loggingcncf

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