To thrive as a COBOL Developer, you need a strong understanding of COBOL programming, legacy mainframe environments, and experience with structured software development, often supported by a degree in computer science or related field. Familiarity with IBM mainframe systems, JCL (Job Control Language), and tools like CICS and DB2 is typically required. Analytical thinking, attention to detail, and effective communication are important soft skills for troubleshooting complex code and collaborating with teams. These skills ensure reliable maintenance and modernization of critical business applications that depend on COBOL systems.