To thrive as an International COBOL Developer, you need strong expertise in COBOL programming, a solid understanding of legacy systems, and experience with global or multi-national IT environments. Familiarity with mainframe platforms, such as IBM z/OS, and tools like JCL, CICS, and DB2, as well as relevant certifications like IBM Certified Application Developer, is often required. Excellent communication, cross-cultural collaboration, and adaptability to different business processes are key soft skills for this position. These qualifications are vital for maintaining and modernizing legacy systems that support international business operations and for ensuring effective coordination across global teams.