A JReports developer designs, develops, and implements business intelligence (BI) reports using JReport, a Java-based reporting tool. Their tasks include creating complex reports, integrating reports into existing applications, and troubleshooting any issues that arise. They are responsible for data modeling and data analysis, ensuring accurate and efficient data representation. They also work on customizing the user interface and improving the functionality of the software. Furthermore, they collaborate with other team members to understand the reporting requirements, provide technical support, assist in testing processes, and maintain the software documentation. They also need to stay updated with new features and enhancements.