Mainframe Quality Engineer

Job summary

Design and execute test plans, cases, and scripts for mainframe applications, covering functional, integration, system, regression, and end-to-end testing. Validate batch jobs, online transactions, files, and DB2 data; manage defects; collaborate with stakeholders; support UAT and production validation; and maintain QA reports and documentation.

Job details

Role: Mainframe Quality Engineer Location: Toronto, ON - Hybrid Contract Role Job Summary We are seeking an experienced Mainframe Quality Engineer (QE) with a strong background in manual and automation testing of mainframe applications. The ideal candidate will have hands-on experience with COBOL, JCL, CICS, DB2, VSAM, and mainframe testing tools. Experience in the Banking or Financial Services domain is highly preferred. Key Responsibilities Design, develop, and execute test plans, test cases, and test scripts for mainframe applications. Perform functional, integration, system, regression, and end-to-end testing. Validate batch processing, online transactions, and file processing. Analyze business and functional requirements to create effective test scenarios. Execute SQL queries and validate data in DB2 databases. Test batch jobs using JCL and validate outputs. Identify, log, track, and verify defects using defect management tools. Collaborate with Business Analysts, Developers, and stakeholders to resolve issues. Support User Acceptance Testing (UAT) and production validation. Participate in Agile ceremonies including sprint planning, daily stand-ups, and retrospectives. Prepare test execution reports and maintain QA documentation. Required Skills 7+ years of experience in Mainframe Quality Engineering or Mainframe Testing. Strong knowledge of: COBOL JCL CICS DB2 VSAM TSO/ISPF Experience testing batch and online mainframe applications. Hands-on experience with SQL for backend data validation. Experience with defect tracking tools such as Jira or ALM. Strong analytical and troubleshooting skills. Excellent communication and collaboration abilities.

What you’ll do

Design and execute test plans, cases, and scripts for mainframe applications, covering functional, integration, system, regression, and end-to-end testing. Validate batch jobs, online transactions, files, and DB2 data; manage defects; collaborate with stakeholders; support UAT and production validation; and maintain QA reports and documentation.

Requirements

Requires 7+ years of mainframe quality engineering or testing experience, with strong knowledge of COBOL, JCL, CICS, DB2, VSAM, and TSO/ISPF. Candidates should have experience testing batch and online applications, using SQL for backend validation and defect tracking tools such as Jira or ALM, along with strong analytical, troubleshooting, communication, and collaboration skills.

Listed skills

• COBOL · Preferred
• SQL · Preferred
• Jira · Preferred
• Agile · Preferred

Other relevant skills

Identified from the job description. Confirm important requirements above.

• Mainframe Testing
• Quality Engineering
• COBOL
• JCL
• CICS
• DB2
• VSAM
• TSO/ISPF
• SQL
• Batch Processing
• Online Transaction Testing
• Test Planning
• Defect Tracking
• Jira
• ALM
• Agile

Job areas

• Technology
• Software
• Finance & Accounting

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