A Jasper Reporting developer designs, creates, and maintains reports using JasperReports, an open-source reporting tool. They collect and interpret data from various sources, translating complex information into user-friendly reports. They are involved in the entire reporting lifecycle, from data extraction, transformation, and loading (ETL), to the design of visually engaging reports. They also collaborate with other developers and stakeholders to understand reporting needs, develop solutions, and troubleshoot any issues. Additionally, they may customize JasperReports to meet specific business requirements, and ensure the accuracy, security, and accessibility of all reports.