What is a mainframe applications developer?

A Mainframe Applications Developer is an IT professional who designs, develops, and maintains software applications that run on mainframe computers. Mainframes are powerful computing systems used by large organizations for critical applications, such as banking, insurance, and government systems. These developers typically work with programming languages like COBOL, JCL, and CICS, and ensure that mainframe applications are efficient, secure, and reliable. Their responsibilities also include troubleshooting issues, optimizing performance, and supporting system integration with modern technologies.