Subcontractor-Cobol developer

Long Description

COBOL Developer - JD

 
Location – Noida/Bengaluru/HYD
Exp- 6-12 Years
Mode -Hybrid( 3 Days a week)
Role - Contractor 

Required Technical Skills:
•    Strong hands-on experience with COBOL development
•    Good knowledge of JCL, batch processing, and job scheduling
•    Experience working with VSAM / flat files / Oracle DB (or other relational databases)
•    Good exposure to mainframe utilities (SORT, IDCAMS, IEBGENER, IEFBR14 etc.)
•    Strong understanding of file layouts, copybooks, and data transformations
•    Experience performing impact analysis and code remediation
•    Proficiency in debugging and resolving issues in large, complex mainframe applications

Additional specific technical skills needed for D0 to F6 conversion:
•    Strong experience handling field length changes in legacy mainframe systems during format conversions
•    Expertise in analyzing copybook and file layout changes, including increases or decreases in field size
•    Ability to identify and remediate field length dependencies across:
o    COBOL data definitions (PIC clauses, REDEFINES)
o    Database columns (DB2, relational DBs)
o    VSAM and flat file records
•    Proficient in updating COBOL PIC definitions (alphanumeric and numeric fields) to align with new standard requirements
•    Hands-on experience handling numeric vs alphanumeric field conversions caused by length or format changes
•    Skilled in managing leading/trailing spaces, zero padding, truncation, and alignment issues
•    Experience resolving buffer overruns, data truncation, and record mismatch issues due to field length changes
•    Ability to perform impact analysis for field size changes across:
o    Input and output interfaces
o    Downstream and upstream systems
•    Expertise in validating mandatory, conditional, and situational fields impacted by length changes
•    Experience updating and testing SORT, extract, and report programs affected by modified record layouts
•    Proficient in testing field length changes through:
o    Unit testing
o    Regression testing
o    Parallel run comparisons (old vs new formats)
•    Strong debugging skills using mainframe utilities (File-AID, SORT utilities, dumps) to validate data integrity after changes

Area(s) of responsibility

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