Naoki Ikeguchi
Server-Side Engineer at Yumemi Inc.
Kita, Japan
Summary
🤩
Rockstar🎓
Top SchoolNaoki Ikeguchi is a Server-Side Engineer with 11 years of experience based in Kita, Japan, currently building backend systems at Yumemi Inc. A Rust enthusiast and self-described "Minarai of CTO" and Chiikawa evangelist, he blends pragmatic production engineering with a taste for clean tooling. His open-source contributions include improving Biome's linting/formatting rules and enhancing cross-platform compatibility for s3fs-fuse, showing a knack for code quality and portability across POSIX/Windows environments. He has held advisory and backend roles at startups and brings hands-on DevOps experience that helps bridge development and deployment. Notably, he focuses on subtle improvements—like JSON formatting options and platform polyfills—that materially reduce friction for teams and users.
10 years of coding experience
2 years of employment as a software developer
Retired, Department of Information and Computer Engineering, Retired, Department of Information and Computer Engineering at National Institute of Technology, Toyota College
Japanese, English
Github Skills (21)
json10
static-code-analysis10
javascript10
c-language10
windows10
msys10
formatter10
formatters10
polyfills10
linter10
rust10
cprogramming-language10
fuse9
filesystem9
typescript9
Programming languages (30)
Github contributions (5)
biomejs/biome
Dec 2023 - Apr 2025
A toolchain for web projects, aimed to provide functionalities to maintain them. Biome offers formatter and linter, usable via CLI and LSP.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:81 reviews, 104 PRs, 72 pushes in 1 year 3 months
Contributions summary:Naoki primarily contributed to the Biome toolchain, focusing on the implementation and improvement of linting and formatting rules. Their work included adding new lint rules, specifically the "noConstantBinaryExpression" rule and support for the "useCollapsedIf" rule. Additionally, they improved JSON formatting by adding support for the `bracketSpacing` and `objectWrap` options. This suggests a focus on enhancing the tool's code analysis and style enforcement capabilities.
cssformatterjavascriptjsonjsx
s3fs-fuse/s3fs-fuse
Jan 2022 - Jan 2022
FUSE-based file system backed by Amazon S3
Role in this project:Back-end Developer & DevOps Engineer
Back-end Developer & DevOps EngineerContributions:9 reviews, 17 commits, 1 PR in 10 days
Contributions summary:Naoki primarily contributed to improving the project's compatibility with the MSYS2 environment and Windows platforms. They fixed statfs issues, integrated polyfills for missing functions, and disabled features that caused problems on Windows. They also made modifications to build and compilation processes. Their work included adapting the codebase to be compatible with various operating systems, which involved refactoring and the use of conditional compilation.
fusevfsfile-basedamazonamazon-s3
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