Sr Mainframe Developer Contract | Hybrid, Toronto ON | 40 hrs/week | Start: September 25, 2026 We are hiring a Senior Mainframe Developer for a hybrid engagement in downtown Toronto with one of our enterprise consulting clients.

This is a hands-on development role on large, business-critical mainframe systems, and it suits someone with a deep COBOL background who is comfortable owning design through to production support.

What you will be doing Design, develop and enhance mainframe applications using COBOL, CICS, JCL and DB2 Work across IMS DB/DC and VSAM data structures, including file and database design Write, unit test and debug programs, and support automated testing on the mainframe Troubleshoot production issues, tune performance and maintain existing systems Build and support XML based interfaces and Tibco integrations Develop and maintain SAS programs and applications where required Partner with business analysts,



QA and downstream teams through the full delivery cycle What we are looking for 10+ years of hands-on mainframe development experience Solid COBOL, CICS, JCL, DB2, VSAM and TSO IMS DB/DC experience Mainframe application design experience, not just maintenance SAS and SAS application development XML and Tibco Automation testing on mainframe Solid debugging skills and the ability to work independently in a large, established codebase Nice to have Financial services or banking domain experience Experience modernizing or interfacing mainframe systems with distributed platforms The details Location: Toronto, ON.

Hybrid, onsite at 199 Bay Street.

Type: Contract, 40 hours per week, 12 months Rate: $58.57/hr on T4 Target start: September 25, 2026 Must be legally eligible to work in Canada.

Background check and proof of address required prior to start.

Subcontracting is not permitted on this role.

📌 Sr Mainframe Developer (Toronto)
🏢 Agility IT
📍 Toronto