Sr Mainframe Developer

Toronto, ON
Hybrid
Posted Oct 17, 2026
1 position

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Employment type: Contract
Experience level: Senior · 5+ years
Posting language: English
Working hours: 40 hours per week
Seniority: Mid-Senior level
Application method: Direct apply is available

Job summary

Design, develop, maintain, test, and debug enterprise mainframe applications, and provide production support. Collaborate with technical teams to deliver reliable, scalable solutions and support system integration.

Job details

Role : Sr Mainframe Developer Location : Toronto, ON (Hybrid) The top 3 skills required for this role: COBOL, CICS, DB2/JCL Job Description/ Responsibilities Design, develop, and maintain mainframe applications using COBOL, CICS, JCL, DB2, IMS DB/DC, and VSAM. Perform coding, testing, debugging, and production support for enterprise mainframe systems. Work with SAS/SAS applications, XML, TSO, TIBCO, and Mainframe Automation Testing. Strong understanding of mainframe application design, system integration, and SDLC processes. Collaborate with technical teams to deliver reliable and scalable mainframe solutions. We are an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, sexual orientation, or gender identity), national origin, citizenship status, age, disability, genetic information, protected veteran status, or any other characteristic protected by applicable law. https://www.e-verify.gov/sites/default/files/everify/posters/IER_RighttoWorkPoster.pdf

What you’ll do

Requirements

The role requires strong COBOL, CICS, and DB2/JCL skills, along with experience in mainframe application development and support. Familiarity with IMS DB/DC, VSAM, SAS, XML, TSO, TIBCO, automation testing, and SDLC processes is also relevant.