Masafumi Okura
Software Developer at Self-employed
Tokyo, Japan
Summary
🤩
Rockstar🎓
Top SchoolMasafumi Okura is a Tokyo-based software developer with 12 years of experience, specializing in Ruby and Ruby on Rails and comfortable adapting to new languages and stacks. He contributes to high-profile open source projects including ruby/ruby and rails/rails, focusing on documentation clarity, bug fixes, and internal stability improvements. As an organizer of community events like Kaigi on Rails, grow-rb, and entaku-rb, he blends technical craft with developer community leadership and public speaking in both Japanese and English. He has freelance and self-employed experience building and reviewing Rails applications and has implemented backend components in Go for real-time systems. Though based in Japan and selective about local recruiting outreach, he actively engages with international opportunities and open-source collaboration.
12 years of coding experience
1 year of employment as a software developer
Bachelor's degree, Economics, Bachelor's degree, Economics at Hitotsubashi University
Spanish, Chinese, English, Japanese
Stackoverflow
704reputation
20kreached
28answers
1question
Github Skills (17)
application-framework10
ruby-rails10
programming-language10
app-framework10
rails10
ruby10
activesupport10
activerecord10
web-framework10
documentation10
testing8
api-design7
rake6
sorting6
ruby-on-rails6
Programming languages (29)
Github contributions (5)
ruby/ruby
Apr 2019 - Dec 2023
The Ruby Programming Language
Role in this project:
Back-end Developer & Technical Writer
Back-end Developer & Technical WriterContributions:1 review, 14 PRs, 7 comments in 4 years 9 months
Contributions summary:Masafumi primarily contributes to the Ruby programming language repository by improving the documentation and examples. Their commits focus on enhancing clarity and accuracy in the documentation for various Ruby methods, including `define_method`, `method_missing`, and `rest?` within the `strscan` library. Additionally, the user updates examples to reflect current best practices and fixes typos, demonstrating a focus on documentation quality and code clarity. The user also works on the `bundler` configuration in relation to supporting newer Ruby versions.
object-orientedruby-languageprogramming-languagerubyc
rails/rails
Jan 2019 - Jan 2023
Ruby on Rails
Role in this project:Back-end Developer
Back-end DeveloperContributions:5 reviews, 22 commits, 29 PRs in 4 years 1 month
Contributions summary:Masafumi primarily contributed to the Ruby on Rails framework, focusing on code improvements and documentation updates. They addressed specific issues, such as improving error messages and adding documentation to the `ActiveSupport` module. The contributions included fixing minor bugs, enhancing existing features, and ensuring the codebase's clarity and maintainability. Furthermore, the user made internal code adjustments and added missing dependencies to enhance the stability of the Rails framework.
ruby-on-railsrailsframeworkrubymvc
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.