Masaki Yamada
プログラマ at 株式会社タイミー
Tokyo, Japan
Summary
👤
Senior🎓
Top SchoolMasaki Yamada is an experienced web programmer with 11 years in production engineering across Tokyo-based companies, currently building products at 株式会社タイミー. He brings full-stack fluency from PHP on-premises systems to Rails on AWS/Azure, having driven large refactors and long-lived services at ドワンゴ, Cookpad, and earlier startups. Masaki contributes to prominent open-source projects like Mastodon, where he has refactored core streaming logic and added features such as account-deletion settings and improved hashtag validations. Comfortable with both legacy, framework-less stacks and modern cloud deployments, he combines practical operational know-how with disciplined code quality. Collected technical breadth and a degree in information engineering give him a knack for simplifying complex systems while keeping them production-ready.
11 years of coding experience
Bachelor of Engineering - BE, 情報工学科, Bachelor of Engineering - BE, 情報工学科 at 電気通信大学
Github Skills (10)
ruby-rails10
rails10
back-end-development10
ruby10
postgresql9
microblogging9
api8
activitypub8
apidoc8
webfinger7
Programming languages (14)
Github contributions (5)
mastodon/mastodon
Apr 2017 - Aug 2018
Your self-hosted, globally interconnected microblogging community
Role in this project:
Back-end Developer
Back-end DeveloperContributions:18 commits, 29 PRs, 26 comments in 1 year 4 months
Contributions summary:Masaki contributed to the core logic of the Mastodon microblogging platform. Their work included refactoring core components, such as the streaming service, and implementing new features. They also addressed specific issues by integrating external libraries for URL extraction and creating settings for account deletion. Additionally, the user improved the code by using symbols for ordering and adding validations for hashtags.
social-networkwebfingerpixelfedhosteddocker
np-complete/C101
Nov 2022 - Jan 2025
c101
Contributions:99 PRs, 74 pushes, 41 branches in 2 years 1 month
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