Mainframe Developer
The developer will analyze business requirements to design, develop, and maintain Mainframe batch and online applications. They are also responsible for troubleshooting production issues and collaborating with stakeholders throughout the SDLC.
- On-site
- Mississauga, ON
- Posted Sep 8, 2026
- Apply by Oct 8, 2026
- 1 position
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Job summary
Position: Mainframe Developer Location:Mississauga, ON. We are seeking a skilled Mainframe Developer with strong experience in IBM Mainframe technologies The candidate will be responsible for analyzing business requirements developing and maintaining batch and online applications supporting production issues and delivering high quality solutions in a fast paced environment Key Responsibilities Analyze business requirements and perform impact analysis Design develops test and maintain Mainframe applications Develop and enhance programs using COBOL CICS DB2 VSAM and JCL Create and maintain batch jobs procedures and utilities Troubleshoot and resolve production issues and application defects Participate in code reviews and ensure adherence to coding standards Collaborate with business analysts QA teams and stakeholders during SDLC phases Support application deployments and postproduction activities Prepare technical design and support documentation Required Skills COBOL JCL DB2 VSAM CICS Experience in application development enhancement and production support Strong debugging troubleshooting and problem-solving skills Knowledge of SDLC Agile methodologies and release processes. Experience with IBM Mainframe environments zOS TSOISPF Skills Mandatory Skills: Mainframe, DB2, COBOL, JCL, CICS, VSAM Nice to have: AI/GenAI Job Title: Mainframe Developer AI/GenAI Exp.
What you’ll do
The developer will analyze business requirements to design, develop, and maintain Mainframe batch and online applications. They are also responsible for troubleshooting production issues and collaborating with stakeholders throughout the SDLC.
Requirements
Candidates must have strong experience with IBM Mainframe technologies including COBOL, CICS, DB2, VSAM, and JCL. Knowledge of Agile methodologies and zOS environments is required, with AI/GenAI experience being a plus.
Listed skills
- COBOLPreferred
- AgilePreferred
Other relevant skills
Identified from the job description. Confirm important requirements above.
- Cobol
- Jcl
- Db2
- Vsam
- Cics
- Mainframe
- Zos
- Tso/Ispf
- Sdlc
- Agile
- Ai/Genai
Job areas
- Software
- Technology
- Engineering
Additional details
- Minimum experience
- 5+ years
- Apply by
- Oct 8, 2026
- Posting language
- English
- Working hours
- 40 hours per week
- Seniority
- Mid-Senior level
- Application method
- Direct apply is available