Intern Mainframe Applications Developer Jobs in Florida

We have an exciting and rewarding opportunity for you to take your software engineering career to the next level. 

As a Software Engineer III at JPMorganChase within the Commercial & Investment Bank, you serve as a seasoned member of an agile team to design and deliver trusted market-leading technology products in a secure, stable, and scalable way. You are responsible for carrying out critical technology solutions across multiple technical areas within various business functions in support of the firm's business objectives.

Job responsibilities

• 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
• Creates secure and high-quality production code and maintains algorithms that run synchronously with appropriate systems
• Produces architecture and design artifacts for complex applications while being accountable for ensuring design constraints are met by software code development
• Gathers, analyzes, synthesizes, and develops visualizations and reporting from large, diverse data sets in service of continuous improvement of software applications and systems
• Proactively identifies hidden problems and patterns in data and uses these insights to drive improvements to coding hygiene and system architecture
• Contributes to software engineering communities of practice and events that explore new and emerging technologies
• Leverages enterprise-authorized AI coding assist tools within the work environment to improve code quality, delivery speed, and productivity across complex deliverables (e.g., code generation/refactoring, unit test creation, documentation), while validating outputs through peer review, automated testing, and secure coding standards; contributes learnings and reusable patterns to improve broader team effectiveness
• Applies knowledge of tools within the Software Development Life Cycle toolchain, including enterprise-authorized AI-assisted development and automation capabilities, to improve the value realized by automation
• Adds to team culture of diversity, opportunity, inclusion, and respect

Required qualifications, capabilities, and skills

• 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

Preferred qualifications, capabilities, and skills

• 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