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Compunnel

Mainframe Developer

Compunnel, Wilmington, Delaware, us, 19894

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Job Summary

We are seeking a skilled Mainframe Developer to design, develop, and maintain enterprise-level mainframe applications.

The ideal candidate will have hands-on experience with COBOL, JCL, DB2, IMS DB/DC, CICS, VSAM, and IBM MQ, and will be responsible for supporting both batch and online processes.

This role also includes optimizing performance, troubleshooting production issues, and contributing to modernization efforts.

Key Responsibilities Design, code, test, and maintain mainframe applications using COBOL, JCL, DB2, IMS DB/DC, CICS, VSAM, and IBM MQ. Develop and support batch and online processes, including job streams, transaction systems, and message-driven programs. Optimize mainframe code and database access for performance and scalability. Provide support for production jobs and participate in on-call troubleshooting as needed. Required Qualifications

Bachelor’s degree in Computer Science, Information Systems, or a related field (or equivalent experience). 3–8 years of hands-on experience with the following mainframe technologies: COBOL (batch and online) JCL (Job Control Language) CICS (Customer Information Control System) DB2 and/or IMS DB VSAM (Virtual Storage Access Method) IMS DC (Transaction Management) IBM MQ (Message Queueing) Familiarity with tools such as TSO/ISPF, File-AID, Abend-AID, and version control systems (e.g., Endevor or Changeman). Preferred Qualifications

Experience with mainframe modernization or integration with distributed/cloud systems. Familiarity with DevOps practices or tools in the mainframe environment. Exposure to agile delivery methodologies. Experience in banking, insurance, or other high-volume transaction systems.

Education:

Bachelors Degree