Yohey Ishikawa
Software Engineer at Hitachi Vantara
Tokyo, Japan
Summary
👤
Senior🎓
Top SchoolYohey Ishikawa is a software engineer and engineering manager based in Tokyo with over 8 years of experience building middleware, embedded systems, and cloud-native serverless applications. He has deep hands-on expertise across Python, C/C++, Java, JavaScript and DevOps/tooling stacks, and has led a company-wide migration of development environments that boosted productivity across 30 teams (≈300 people). Currently at Hitachi Vantara he focuses on productivity engineering and the practical adoption of Generative AI (GitHub Copilot, Azure OpenAI) to accelerate developer workflows. His background in physics from Tokyo Institute of Technology informs a methodical, measurement-driven approach to architecture and automation. Notably, he blends low-level embedded experience with modern cloud and developer-experience tooling, making him effective at bridging legacy systems and AI-enhanced, cloud-first practices.
8 years of coding experience
Master's degree Physics, Master's degree Physics at Tokyo Institute of Technology
Github Skills (3)
redmine7
ruby3
ruby-on-rails3
Programming languages (1)
Github contributions (3)
yohey-i/redmine_disable_auther_notification_plugin
Dec 2022 - Feb 2023
Disable notifications to the issue auther / Add the auther to watchers on a new issue
Contributions:4 releases, 11 commits, 2 PRs in 2 months
redmineredmine-pluginrubyruby-on-rails
yohey-i/Instagram_Download_Button
Feb 2025 - Feb 2025
Add download button to download media in the post and the story in Instagram
Contributions:2 pushes, 1 branch in 1 day
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