Ruby on Rails is a Ruby-based Model-View-Controller (MVC) framework used for building production-ready web applications and services, providing out-of-the-box features such as database migrations and ActiveRecord (ORM). It shares similarities with Django but allows developers to build controller-specific logic. Developers can leverage existing functionalities of gems created by the Rails community to improve their developer experience. Contentful provides several gems that make interacting with its API easier, enabling developers to retrieve data stored within a Contentful space using the Content Delivery API (CDA). To demonstrate this integration, a demo job listing application is built that relies on Contentful for its data, utilizing the Contentful gem and Rich_text_renderer gem. The application uses services to manage business logic and retrieves entries from the Contentful space using the Content Delivery API.