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.
- Hybrid
- Mississauga, ON
- Posted Sep 8, 2026
- Apply by Oct 8, 2026
- 1 position
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Job summary
Mainframe Developer AI/GenAI Exp Mississauga, ON. (Hybrid) We are seeking a skilled Mainframe Developer with strong experience in IBM Mainframe technologies The candidate will be responsible for analysing business requirements developing and maintaining batch and online applications supporting production issues and delivering high-quality solutions in a fast-paced environment Key Responsibilities Analyse business requirements and perform impact analysis Design develops test and maintains 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.
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 proficiency in COBOL, JCL, DB2, VSAM, and CICS within IBM Mainframe environments. Experience with Agile methodologies and a background in application development and production support are required.
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
- Ai/Genai
- Sdlc
- Agile
- Production Support
Job areas
- Software
- Technology
- Finance & Accounting
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