Ruby Summer of Code

Federico Builes

Medellin, Colombia


Student, Project #6

GitHub: febuiles

Twitter: @febuiles



Bio: I'm a CS student based in Medellin, Colombia. In the past I've been involved in the Ruby community through the Rubinius and Rubyspec (with minor contributions to other projects). I worked as a full time Ruby and Python programmer at Mentez S.A.S in 2009 with a small internship in Nedap N.V., but this year I've decided to come back to school to finish my degree.


I initially got into Ruby due to Rails after working a couple of years with PHP. This was a huge change in the way I approached my work (I was about to quit the programming thing altogether and dedicate to the music business) and since then I've been working regularly on different projects most of them are public.

Presented by



  • Engine Yard Rails Hosting
  • Ruby Central
  • Ruby on Rails Core Team

Full Project Sponsors


  • 37signals
  • Phusion
  • Pivotal Labs
  • New Relic
  • O'Reilly
  • Entryway
  • Heroku
  • Hashrocket
  • Shopify
  • VMware
  • Thoughtbot
  • Yammer

Half Project Sponsors


  • entp
  • The Frontier Group
  • Intridea
  • Braintree
  • Aptana
  • Harvest
  • Blue Box Group
  • Chargify
  • RubyMine
  • Puppet Labs
  • CUBox