The Cards Mainframe Developer will be responsible for developing, enhancing, and maintaining mainframe applications supporting cards and payment systems.
The role involves hands-on development using COBOL, JCL, VSAM, and DB2, supporting batch processing, resolving production issues, and collaborating with cross-functional teams to ensure stable and efficient mainframe operations.
Responsibilities
Develop, enhance, and maintain mainframe applications using COBOL, JCL, VSAM, and DB2.
Write efficient and scalable COBOL programs to support business processes.
Optimize JCL and batch jobs to ensure reliable and timely execution.
Develop and maintain DB2 queries, stored procedures, and program logic.
Support and monitor daily batch streams and scheduled mainframe jobs.
Analyze and resolve job abends to ensure batch cycle completion.
Improve batch job performance and streamline processing workflows.
Troubleshoot and resolve application issues across development, testing, and production environments.
Perform root cause analysis and implement long-term fixes for recurring issues.
Provide on-call or weekend support for critical batch processes when required.
Work with CICS, IMS, and DB2 regions to ensure stable system integration.
Maintain and enhance VSAM files, sequential datasets, and DB2 tables.
Collaborate with cross-functional teams on system changes, migrations, and upgrades.
Create and maintain technical documentation including program specifications and support guides.
Participate in Agile ceremonies and follow coding standards and peer review practices.
Requirements
Strong hands-on experience with COBOL, JCL, VSAM, and DB2.
Good understanding of CICS or IMS transaction processing.
Strong knowledge of mainframe batch processing lifecycles.
Experience using debugging tools such as Fault Analyzer, Abend-AID, or similar.
Strong analytical and problem-solving skills.
Ability to work independently and as part of a team.
Should Have
Experience in banking, cards, payments, or financial services.
Knowledge of PL / I, Assembler, or C on the mainframe.
Experience with CICS or IMS application programming.
Exposure to REXX scripting for automation.
Basic understanding of DB2, CICS, or IMS administration.
Experience working in Agile environments.
Experience
Proven experience in mainframe application development and production support roles.
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Cards Mainframe Developer • Toronto, ON, CA
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