Ruby on Rails is a server-side framework for developing websites, databases, and web services. "Rails" is the name of the overall development framework. As a Ruby Rails developer, you write code for server-side applications in a language called Ruby. After programming your solutions, your responsibilities focus on testing your work and performing debugging duties if necessary. You may also check and improve existing applications. You usually work as part of a development team, and you help integrate other elements, such as database functions, into the framework. Employers may expect you to work with front-end development languages such as HTML and JavaScript.