Kei Kamikawa
ソフトウェアエンジニア at NOT A HOTEL INC.
Okinawa Prefecture, Japan
Summary
🤩
Rockstar🎓
Top SchoolKei Kamikawa is a seasoned software engineer based in Okinawa with 12 years of experience building reliable back-end systems and developer tools. He has contributed to notable open-source projects in the Go ecosystem—improving GraphQL tooling (gqlgen, gqlparser), a high-performance resumable downloader (pget), and utilities like kubecolor—demonstrating strong expertise in protocol parsing, parallel I/O, and CLI robustness. At NOT A HOTEL he focuses on CS workflow automation and developing AI-powered concierge bots, blending practical engineering with applied AI. His work on JWT cryptography and schema introspection shows a deeper-than-typical interest in security and standards compliance. A Ryukyu University information engineering graduate, Kei combines production-grade engineering with a persistent curiosity for low-level protocol and crypto details.
12 years of coding experience
バチェラー, 情報工学科, バチェラー, 情報工学科 at 琉球大学
English, Japanese
Github Skills (42)
kubernetes10
parser10
free-download10
schema-validation10
parallel10
testing10
command-line-interface10
http10
git-repository10
typescript10
download-file10
kubectl10
wpgraphql10
codegen10
base64-encoding10
Programming languages (19)
Github contributions (5)
Code-Hex/pget
Jun 2016 - Oct 2022
The fastest, resumable file download client
Role in this project:
Back-end Developer
Back-end DeveloperContributions:13 releases, 18 reviews, 112 commits in 6 years 4 months
Contributions summary:Kei implemented the core functionality for a parallel file download client in Go. Their initial contributions focused on setting up the foundational packages and commands. They added features such as handling URL redirects, setting file names, calculating free disk space, and creating progress bars. The user's work also encompassed the implementation of parallel downloads, including file splitting, downloading in parallel, and binding files.
downloadgolangdownloaderconcurrencyparallel
vektah/gqlparser
Apr 2021 - Mar 2022
A port of the parser from graphql-js into golang
Role in this project:Back-end Developer
Back-end DeveloperContributions:8 reviews, 13 commits, 21 PRs in 11 months
Contributions summary:Kei primarily contributed to the development of a GraphQL parser in Go. Their work involved adding and supporting features related to directive definitions, including repeatable directives and locations. They implemented enhancements to the schema validation process to handle new features like variable definitions. The user also made updates to the project's prelude files, including those used for GraphQL schema introspection, and fixed inliner issues.
golanggraphql-jsgraphqlparser
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