Sr. Mainframe Developer

Job Description

Sr. Mainframe Developer

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Location: New York, NY or Pittsburgh, PA

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Work Arrangement: Hybrid – 3 days onsite per week

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Job Summary

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We are seeking an experienced Mainframe Developer to support legacy application development and modernization initiatives. The ideal candidate has strong, hands-on COBOL development experience, deep knowledge of core mainframe technologies, and direct experience migrating legacy applications and data to modern distributed platforms.

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Key Responsibilities

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• Develop, maintain, and troubleshoot mainframe applications using COBOL.

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• Support batch processing, CICS transaction processing, and database operations.

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• Work with JCL, DB2, MQ, VSAM, and stored procedures.

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• Analyze application dependencies across legacy systems and data structures.

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• Contribute to mainframe modernization initiatives, including migrating VSAM data to relational databases and supporting integration with distributed technologies.

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• Collaborate with technical teams to ensure application reliability and successful modernization.

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Required Qualifications

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• Strong, recent hands-on COBOL development experience.

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• Proficiency with JCL, CICS, DB2, MQ, VSAM, and batch processing.

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• Experience with stored procedures and mainframe application troubleshooting.

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• Direct experience participating in mainframe modernization or migration projects.

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• Understanding of legacy application dependencies and data migration to relational databases.

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• Familiarity with distributed technologies such as Java, Python, Oracle, or other relational database platforms.

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