Yuta Iwama
Staff Software Engineer at Treasure Data
Tokyo, Japan
Summary
🤩
Rockstar🎓
Top SchoolYuta Iwama is a Staff Software Engineer based in Tokyo with 12 years of experience building reliable back-end systems and improving developer workflows. At Treasure Data he progressed from intern to staff engineer, focusing on scalable data and logging infrastructure and production-grade robustness. He is an active open-source contributor with notable work on widely used projects like gRPC and Fluentd—improving authentication, test automation, and message handling—and enhanced developer UX for GitHub integrations by adding template support in the popular hub CLI. Comfortable across Ruby, C-based systems, and distributed logging stacks, he blends pragmatic bug fixes with automation to raise quality and observability. Collected academic training from Nagoya Institute of Technology and a Master’s from the University of Tokyo underpins his engineering rigor.
12 years of coding experience
7 years of employment as a software developer
University of TokyoBachelor's degree, Bachelor's degree at Nagoya Institute of Technology
Github Skills (25)
git10
ruby10
go10
github-api10
network-protocol10
git-pull10
logging10
pullrequest10
fluentd10
messagepack10
grpc10
test-automation10
testing9
back-end-development9
unit-testing9
Programming languages (16)
Github contributions (5)
fluent/fluentd
Aug 2016 - May 2020
Fluentd: Unified Logging Layer (project under CNCF)
Role in this project:
Back-end Developer
Back-end DeveloperContributions:726 commits, 314 PRs, 114 pushes in 3 years 9 months
Contributions summary:Yuta contributed to the back-end logic of the Fluentd project, enhancing features and fixing bugs related to the forward input/output plugins. They implemented and refined functionalities concerning message compression and handling of chunk sizes, critical components for data transmission. Furthermore, they addressed and resolved issues surrounding authentication, error management, and improvements for internal protocol implementation, which were integral to improving stability and performance within the log collection framework.
fluentdrubyloggingunified-loggingcncf
grpc/grpc
May 2018 - Nov 2018
The C based gRPC (C++, Python, Ruby, Objective-C, PHP, C#)
Role in this project:Back-end Developer & Test Automation Engineer
Back-end Developer & Test Automation EngineerContributions:20 commits, 27 PRs, 38 comments in 6 months
Contributions summary:Yuta primarily contributed to the Ruby-based gRPC implementation, fixing bugs and improving existing functionality. They addressed issues related to client-server authentication, removed print statements, and refactored the code for better organization. Furthermore, the user improved test coverage and automated Ruby end-to-end tests, ensuring the quality and reliability of the gRPC library.
objective-ccpppythongrpcphp
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