Advance your career as a Senior Mainframe Developer with a hybrid role based in Toronto, focusing on large-scale mainframe systems. This contract position starts September 25, 2026. We seek a seasoned Senior Mainframe Developer with over 10 years of hands-on experience in COBOL, CICS, JCL, and DB2 to take charge of application design and maintain legacy systems. Collaborate with business analysts and quality assurance throughout project delivery. Key Responsibilities:
Design and develop mainframe applications with COBOL and CICS
Handle IMS DB/DC and VSAM data structures
Write and debug mainframe programs effectively
Resolve production issues and enhance system performance
Create XML interfaces and support Tibco integrations Requirements:
10+ years experience in mainframe development
Proficient in COBOL, CICS, JCL, DB2, and TSO
Skilled in SAS development for mainframe
Experience in automation testing on mainframe
Robust debugging abilities in a large codebase Leverage your mainframe development expertise to revolutionize systems in Toronto.

📌 Toronto Senior Mainframe Developer Position
🏢 Agility IT
📍 Toronto