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Job Title: Mainframe Application Developer - zOS Location: Remote Role Summary: Develop, maintain, and optimize mission-critical enterprise applications running on IBM zOS architecture. Key Responsibilities: Write and maintain efficient code using Mainframe COBOL. Design and optimize complex JCL scripts for high-volume batch processing. Manage data integrity using VSAM file structures and DB2 databases. Support online transaction environments via CICS. Debug, test, and resolve complex applicatio
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