An Abend-Aid Developer is responsible for working with Compuware's Abend-Aid, a fault management system designed to provide detailed diagnostic information for system failures. They utilize this tool to analyze and debug issues in mainframe applications, including COBOL, PL/I, CICS, and more. They identify and resolve system faults, ensuring stability and efficiency. Their tasks also include configuring Abend-Aid as per project requirements, interpreting the reports generated by the tool, and integrating it with other software. They often collaborate with other IT professionals to improve system performance and reduce downtime, contributing to the overall development lifecycle.