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S.i. Systems
Senior Mainframe Developer (10+ years of experience) to design, develop, test, and implementS.i. Systems • Toronto
Senior Mainframe Developer (10+ years of experience) to design, develop, test, and implement

Senior Mainframe Developer (10+ years of experience) to design, develop, test, and implement

S.i. Systems • Toronto
11 days ago
Job type
  • Full-time
Job description

Our financial services client is seeking a Senior Mainframe Developer (10+ years of experience) to design, develop, test, and implement enterprise mainframe applications using COBOL, JCL, CICS, VSAM, and SAS

Join a banking technology team supporting mission-critical mainframe applications within a high-volume enterprise environment. This role focuses on end-to-end application development, batch processing, testing, implementation, and production support across mainframe platforms and online transaction processing systems. The position offers exposure to large-scale enterprise systems and opportunities to deepen expertise in mainframe engineering and operational support. The team operates in a collaborative environment supporting both BAU and project-based initiatives.

Contract, Toronto, Hybrid, 2 days in office – Monday and Wednesday

12 months

Must Haves

  • 10+ years in application development across enterprise applications, mainframe solutions, batch processing systems, and online transaction processing
  • Hands-on COBOL, JCL, CICS, VSAM, SAS, and batch processing frameworks
  • SAS, CA-7, IBM OS/, Z/OS, TSO, ISPF, File-aid, TIBCO, NDM, FTP, Endevor, Test Sets, Service Now
  • Application design, development, testing, implementation, and production support within enterprise mainframe environments
  • Undergraduate degree in Computer Science, Engineering, or equivalent experience

Nice to Have

  • Experience in financial services or Card Payment Network industries
  • Technical Certificate

Responsibilities

  • Translate business requirements into technical design documents
  • Design, code, integrate, test, debug, and implement mainframe solutions
  • Support enhancements, maintenance, and break/fix implementations across source code, JCL, and batch cycles
  • Perform unit testing, system testing, integration testing, and production implementation activities
  • Analyze production incidents and support recovery and incident resolution activities
  • Support seed testing and production deployments
  • Provide day-to-day project status, delivery progress, and risk updates to stakeholders


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Senior Mainframe Developer (10+ years of experience) to design, develop, test, and implement enterprise mainframe applications using COBOL, JCL, CICS, VSAM, and SAS 58288 • Toronto

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