Title: Subcontractor-Cobol developer
Area(s) of responsibility
D for COBOL developer</strong></p><p>Required Technical Skills:</p><p>• Strong hands-on experience with COBOL development</p><p>• Good knowledge of JCL, batch processing, and job scheduling</p><p>• Experience working with VSAM / flat files / Oracle DB (or other relational databases)</p><p>• Good exposure to mainframe utilities (SORT, IDCAMS, IEBGENER, IEFBR14 etc.)</p><p>• Strong understanding of file layouts, copybooks, and data transformations</p><p>• Experience performing impact analysis and code remediation</p><p>• Proficiency in debugging and resolving issues in large, complex mainframe applications</p><p>Additional specific technical skills needed for D0 to F6 conversion:</p><p>• Strong experience handling field length changes in legacy mainframe systems during format conversions</p><p>• Expertise in analyzing copybook and file layout changes, including increases or decreases in field size</p><p>• Ability to identify and remediate field length dependencies across:</p><p>o COBOL data definitions (PIC clauses, REDEFINES)</p><p>o Database columns (DB2, relational DBs)</p><p>o VSAM and flat file records</p><p>• Proficient in updating COBOL PIC definitions (alphanumeric and numeric fields) to align with new standard requirements</p><p>• Hands-on experience handling numeric vs alphanumeric field conversions caused by length or format changes</p><p>• Skilled in managing leading/trailing spaces, zero padding, truncation, and alignment issues</p><p>• Experience resolving buffer overruns, data truncation, and record mismatch issues due to field length changes</p><p>• Ability to perform impact analysis for field size changes across:</p><p>o Input and output interfaces</p><p>o Downstream and upstream systems</p><p>•