Design, develop, and support applications built on IBM mainframe technologies, including batch and online programs. Perform root-cause analysis for production incidents and collaborate with cross-functional teams to ensure application stability and modernization.

Key Responsibilities

- Design, develop, enhance, test, and support applications built on IBM mainframe technologies.
- Develop and maintain batch and online programs using COBOL and/or PL/I with JCL-based scheduling and execution logic.
- Work with CICS transaction programs and IMS DC / IMS DB components for online and database processing.
- Develop, tune, and troubleshoot DB2-based programs, SQL queries, stored logic, and data access routines.
- Support interfaces or reporting solutions involving SQL Server where required in the application ecosystem.
- Use REXX and related tooling for automation, utilities, diagnostics, and productivity improvements.
- Perform root-cause analysis for production incidents, implement bug fixes, and support release / deployment activities.




- Participate in impact analysis, code reviews, unit testing, system testing support, and documentation updates.
- Collaborate with business analysts, testers, infrastructure teams, and downstream / upstream application teams.
- Contribute to application stability, performance improvements, technical debt reduction, and modernization-readiness activities.

Preferred Skills

- Exposure to insurance, banking, or other high-volume regulated enterprise environments.
- Experience with source control, DevOps / deployment tooling, mainframe utilities, and job scheduling products.
- Familiarity with modernization initiatives such as API enablement, data extraction, service integration, or code refactoring.
- Knowledge of performance tuning, data reconciliation, and interface support across distributed systems.

Salary Range - CA$ 100,000 - CA$ 120,000 Per Year

📌 Mainframe Developer (Toronto)
🏢 MainframeMaster
📍 Toronto