mainframes jobs in Toronto

A leading IT services firm is seeking a Senior Security Administrator for a remote position. The candidate will provide mainframe user access support, develop automation tools, and work closely with technology teams to ensure compliance with security policies. This role requires advanced experience with Broadcom Top Secret and strong communication skills....

Flip retail seeks a Security Specialist with mainframe focus to join our remote team in Toronto. You will interpret and enforce security policies, analyze complex situations, audit risks, and implement controls across systems to ensure ongoing compliance, data protection, and incident readiness. You will lead security projects, coordinate with management,...

Harness your skills as a Senior Mainframe Developer with expertise in COBOL and JCL in this hybrid role based in Toronto. Work on crucial enterprise applications and deliver innovation. We're looking for an accomplished Senior Mainframe Developer in Toronto, Ontario, to enhance our enterprise-level mainframe systems. This role will emphasize designing,...

Software International (SI) supplies technical talent to a variety of clients ranging from Fortune 100/500/1000 companies to small and mid-sized organizations in Canada/US.We have a Permanent or 12 month renewable contract as a Senior Mainframe z/OS Storage System Programmer with our large consulting client, working on a long term project for one of Canada's...

A technology consulting company in Toronto is seeking an experienced Senior Technology Architect. The successful candidate will provide operational support for Mainframe systems, manage hardware installation, and oversee software migration activities. Candidates must have over 10 years of experience in mainframe infrastructure and strong documentation and...

Application Deadline:10/30/2026Address:4100 Gordon Baker RoadJob Family Group:TechnologyDrive Performance. Enable Stability. Power BMO's Future.At BMO , technology powers millions of customer interactions every day. We are seeking a highly skilled Senior Mainframe Performance & Capacity Management Specialist to play a critical role in ensuring the...

A technology services firm in Toronto is looking for a Mid-Senior level mainframe developer with 5 years of experience. The role requires strong knowledge in assembler, IMS, and COBOL, and the ability to work independently. This is a full-time position in the field of Information Technology. The ideal candidate will join a team focused on conquering today's...

Toronto-Dominion Bank in Toronto, Ontario seeks a Senior IT Build/CICS Programmer to support IBM CICS on z/OS within the Mainframe Delivery team. This role focuses on design, build, test and deployment of CICS-related solutions while partnering with application developers.Expect 5–10 years of CICS experience, strong problem-solving and communication...

A leading global technology firm seeks an experienced Senior Mainframe Developer in Toronto, Canada. The role involves designing, developing, testing, and supporting critical banking solutions on their mainframe platform. Ideal candidates will possess extensive experience with COBOL, DB2, and Git, and will exhibit strong communication skills. This position...

The Mainframe & SWIFT Application Support Specialist is responsible for the end-to-end support, monitoring, and incident management of our Mainframe accounting processes and SWIFT messaging flows. The role ensures operational stability, data accuracy, and timely processing of financial transactions, supporting business-critical fund accounting and custody...

Software International (SI) supplies technical talent to a variety of clients ranging from Fortune 100/500/1000 companies to small and mid-sized organizations in Canada/US. We have a Permanent or 12 month renewable contract as a Senior Mainframe z/OS System Programmer with our large consulting client, working on a long term project for one of Canada's...

S.I. Systems Ltd. in Toronto seeks an Int. Technical Project Manager for Mainframe Infrastructure to own delivery of in-flight mainframe initiatives within a Tier1 bank. The contract is 6 months, hybrid in Toronto (2x/week). The role focuses on governance, cross-functional leadership, and delivery of upgrades, migrations, cyber resiliency and modernization...

Cognizant in Toronto, ON is seeking an experienced Senior Mainframe Test Analyst to lead testing of mission-critical mainframe systems and guide test strategy, design, and execution across SIT, UAT, and batch testing.You will validate COBOL, JCL, CICS, DB2, and VSAM, drive data validation, and mentor junior testers while collaborating with Business Analysts,...

Key AccountabilitiesPerform moderately complex to complex technical tasks independently, with appropriate guidance for highly complex or high-risk changes.Develop program specifications; design, code, integrate, test, debug, and implement mainframe solutions in accordance with business, technical, and control requirements.Support business inquiries and...

Software International (SI) supplies technical talent to a variety of clients ranging from Fortune 100/500/1000 companies to small and mid-sized organizations in Canada/US. We have a Permanent or 12 month renewable contract as a Senior Mainframe z/OS Storage System Programmer with our large consulting client, working on a long term project for one of...

A leading technology firm in Toronto is seeking a skilled Mainframe Developer to create and maintain applications using IBM Assembler and Mainframe DB2. The ideal candidate will have 4-6 years of experience and will work on modernization projects involving advanced systems and integration with cloud technologies. If you excel in debugging and performance...

Pursue a rewarding career as a Mainframe Tester focusing on automation and technical testing. This role requires a solid background in Mainframe environments and proficiency in automation frameworks and scripting. As a Mainframe Tester, you will encounter diverse testing scenarios through Batch, JCL, and SQL environments. Your primary responsibilities...

Perform hands-on testing within the Credit Cards functional area, including test planning, design, case creation, and execution to deliver quality outcomes. Bring prior QE experience in Mainframe and API testing. Provide QE leadership and feedback throughout design and development to ensure solution quality. Apply strong business and technical understanding...

S.I. Systems Ltd. in Toronto seeks an Int. Technical Project Manager for Mainframe Infrastructure to own delivery of in-flight mainframe initiatives within a Tier1 bank. The contract is 6 months, hybrid in Toronto (2x/week). The role focuses on governance, cross-functional leadership, and delivery of upgrades, migrations, cyber resiliency and modernization...

A leading technology firm in Toronto is looking for a Business Analyst to lead requirements elicitation sessions, create functional specifications, and perform data analysis. The ideal candidate will have strong SQL skills and hands-on experience with REST APIs and JSON. You'll develop system documentation and collaborate in Agile environments. Ideal...