Mainframe Software Engineer III - Qa Testing

JPMorgan Chase JPMorgan Chase · Banking · Tampa, FL +1 · Commercial & Investment Bank

Software Engineer III focused on QA Testing for mainframe systems at JPMorgan Chase. The role involves executing software solutions, designing and maintaining algorithms, producing architecture artifacts, and analyzing data for continuous improvement. A key aspect is leveraging enterprise-authorized AI coding assist tools to enhance code quality and productivity, while critically validating AI-generated outputs and understanding responsible AI use in engineering workflows. The role requires extensive mainframe testing experience with specific technologies like COBOL, DB2, JCL, and testing tools such as IBM Debug Tool and Xpediter.

What you'd actually do

  1. Executes software solutions, design, development, and technical troubleshooting with ability to think beyond routine or conventional approaches to build solutions or break down technical problems
  2. Creates secure and high-quality production code and maintains algorithms that run synchronously with appropriate systems
  3. Produces architecture and design artifacts for complex applications while being accountable for ensuring design constraints are met by software code development
  4. Gathers, analyzes, synthesizes, and develops visualizations and reporting from large, diverse data sets in service of continuous improvement of software applications and systems
  5. Proactively identifies hidden problems and patterns in data and uses these insights to drive improvements to coding hygiene and system architecture

Skills

Required

  • Formal training or certification on Software Engineering concepts and 3+ years applied experience
  • 3+ years of hands-on mainframe testing experience, including test planning, test case design, execution, and defect management
  • Demonstrated knowledge of software applications and technical processes within the mainframe technical discipline (COBOL, DB2, JCL ,VSAM, CICS, MQ)
  • Experience with File Aid, Expeditor, Stored Procedures, Endevor, CA-7, NDM, MFTS, s-FTP, XML, CLIST, REXX
  • Proficiency in mainframe testing tools such as IBM Debug Tool, Xpediter, File-AID, and ISPF for test data setup and validation
  • Experience with batch job testing, JCL validation, and online transaction testing in a mainframe environment
  • Solid understanding of regression testing, integration testing, and end-to-end testing methodologies for complex mainframe systems
  • Experience in test data management, data masking, and test environment configuration on mainframe platforms
  • Familiarity with defect tracking and test management tools such as JIRA, ALM, or equivalent
  • Hands-on experience using enterprise-authorized AI-assisted software development tools within the work environment (e.g., for coding, test creation, troubleshooting, or documentation) with demonstrated ability to critically evaluate, validate, and refine AI-generated outputs for correctness, performance, and security
  • Understanding of responsible AI use in engineering workflows, including data sensitivity considerations, secure handling of inputs/outputs, and adherence to resiliency and security expectations; ability to guide peers on safe and effective usage within team practices

Nice to have

  • Experience with test automation frameworks and tools for mainframe applications
  • Proficiency in programming languages such Java/Python for scripting
  • Testing Frameworks: JUnit, Powermock / Mockito, Cucumber, Mutation Testing, Selenium
  • Familiarity with DevOps tools like Jules, Jenkins, Maven

What the JD emphasized

  • mainframe testing experience
  • mainframe technical discipline (COBOL, DB2, JCL ,VSAM, CICS, MQ)
  • mainframe testing tools
  • batch job testing, JCL validation, and online transaction testing in a mainframe environment
  • test data management, data masking, and test environment configuration on mainframe platforms
  • enterprise-authorized AI-assisted software development tools