A Java EE developer designs, develops, and manages applications running on the Java platform. They use Java Enterprise Edition (Java EE), an extension of Java SE, that provides APIs for object-relational mapping, distributed and multi-tier architectures, and web services. Java EE developers handle the design decisions, write and debug code, create data validation procedures, and ensure the seamless integration of individual software solutions. They also test programs for bugs, identify potential issues, and implement efficient and secure solutions. They often work closely with web developers and software engineers to integrate Java into business applications, software, and websites.