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Agility IT
Sr Mainframe DeveloperAgility IT • Toronto, ON, Canada
Sr Mainframe Developer

Sr Mainframe Developer

Agility IT • Toronto, ON, Canada
6 hours ago
Salary
CA$58.57 hourly
Job type
  • Full-time
  • Quick Apply
Job description

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
  • Strong 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.

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Sr Mainframe Developer • Toronto, ON, Canada

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