COBOL and DB2 expertise define this Senior Mainframe Developer position with Cognizant in Toronto, Ontario. Work hybrid, three days weekly onsite.
Cognizant seeks a Mainframe Developer with 8+ years designing, developing, enhancing, and supporting enterprise-scale applications. The work includes COBOL, DB2, JCL, VSAM, and production support. You will contribute throughout the software development life cycle and support application quality.
Key Responsibilities: Analyse business requirements and prepare technical design specifications
Develop, test, maintain, and enhance COBOL DB2 applications
Modify batch and online processing programs for business requirements
Troubleshoot JCL, PROCs, batch schedules, and production incidents




Perform root cause analysis and implement permanent fixes
Requirements: 8+ years designing and supporting enterprise-scale Mainframe applications
Robust expertise in COBOL, DB2, JCL, and VSAM
Experience with Mainframe application development and production support
Ability to write complex DB2 SQL queries
Experience performing performance tuning and troubleshooting
Apply Senior Mainframe Developer expertise in COBOL, DB2, JCL, and production support at Cognizant in Toronto.

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📌 Senior COBOL Mainframe Developer (Ontario)
🏢 Cognizant
📍 Ontario