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.

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