An Enterprise JavaBeans (EJB) developer is responsible for the design, development, and deployment of enterprise applications using the Java platform. Enterprise applications are typically large-scale, distributed applications that are built on top of a middleware platform such as an application server. EJB developers use the Java programming language to create stateless and stateful session beans, message-driven beans, and entity beans. They also use the Java Platform, Enterprise Edition (Java EE) APIs to access resources in the application server environment. In addition, EJB developers may be responsible for creating or working with web services that are invoked by other applications.