developers

Rubyist, founder of haconiwa, rbbcc, mruby/edge, niao, etc

Previously built @flatironschool and @learn-co. Wrote @learn-co-curriculum. Taught thousands how to code.

Senior Ruby on Rails dev

Technical advisor for companies using Ruby on Rails in Japan. An organizer of @ginzarb

Ruby lover, Crystal enthusiastic, Rust newbie. I love creating games and building interpreters.

Staff engineer at Cleo

Co-founder and CTO at @jetrockets.

I do 🔴 SupeRails - Ruby on Rails & Hotwire screencasts. Source code @corsego

Ruby Developer Advocate at SerpApi. Author of Kamal Handbook and the Kamal DevOps course.

Rails developer. ❤️ Ruby, Vim The chief organizer of Kaigi on Rails: @kaigionrails The organizer of @grow-rb and @entaku-rb

CEO/Partner @planetargon. Old-timer Ruby on Rails developer. Creator of @ohmyzsh. Host of On Rails and Maintainable Software podcasts

Ruby committer. Shopify Ruby DX. Building developer tooling infrastructure.

Specialize in software design and DX. VPE at Helios (FinTech).