Experience with Ruby on Rails, along with other common libraries such as RSpec and Resque
Good understanding of the syntax of Ruby and its nuances
Solid understanding of object-oriented programming
Familiarity with concepts of MVC, Mocking, ORM, and RESTful
A knack for writing clean, readable Ruby code
Ability to integrate multiple data sources and databases into one system
Understanding of fundamental design principles behind a scalable application
Able to create database schemas that represent and support business processes
Able to implement automated testing platforms and unit tests