A Groovy Developer is a software developer who specializes in using Apache Groovy, a dynamic programming language for the Java platform. They write scripts, develop applications, and automate tasks using Groovy, often working within frameworks like Grails or integrating with Java applications. Responsibilities typically include writing clean, efficient code, debugging programs, and collaborating with teams to implement business logic. Groovy Developers are commonly employed in web development, automation, and enterprise application projects.