COBOL and IBM z/OS expertise define this Senior Software Engineer opportunity with Affinity Life in Waterloo, Ontario. The work model is hybrid.
As a Senior Software Engineer, you will build, modernize, and support enterprise applications. Your work spans COBOL, JCL, DB2, CICS, IBM z/OS, API integration, and DevOps practices. You will also mentor engineers and help maintain reliable production systems.
Key Responsibilities: Design, develop, test, and integrate mainframe application enhancements
Build solutions using COBOL, JCL, DB2, CICS, and IBM z/OS
Troubleshoot production issues and perform root-cause analysis
Lead complex backend and mainframe solution implementation
Mentor engineers through guidance, reviews, and knowledge sharing




Requirements: Significant enterprise-scale mainframe software engineering experience
Robust knowledge of COBOL, JCL, DB2, CICS, and IBM z/OS
Experience supporting high-volume, mission-critical production systems
Experience with modernization, API integration, or distributed connectivity
Understanding of Agile development and software lifecycle delivery
Apply your COBOL, mainframe modernization, and production support expertise as a Senior Software Engineer in Waterloo.

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📌 Senior Mainframe Software Engineer (Ontario)
🏢 Manulife
📍 Ontario