Chef's community platform
Built for Chef during January 2014 - October 2014. I did development, design, and project management, and it is built with Ruby on Rails. Check it out.
Supermarket hosts cookbooks and tools for the Chef platform. I worked on the rewrite of Supermarket with a small team with a focus on test coverage and maintainable code.
Supermarket is open source, so my commits and contributions are publicly available.