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# Mainframe Developer

- **Company:** Stefanini
- **Location:** Dearborn, MI, United States
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Testing (Software), Clean Code Principles, Application Programming Interfaces (APIs), Agile Methodology, Artificial Intelligence, Software Applications, Application Testing, Batch Processing, BigQuery, Customer Information Control System (CICS), COBOL (Programming Language), Code Review, Continuous Integration, Data Migration, IBM DB2, Github, Job Control Language (JCL), JSON, Mainframes, Program Analysis, Software Architecture, Software Engineering, SQL Databases, Strategies of Testing, Z/OS, Tso/ispf, Google Cloud, Performance Testing, Test-Driven Development (TDD), GitHub Copilot, Large Language Models, Prompt Engineering, Backend, Data Management, Restful APIs, Service Stack, Programming Languages, Microservices
- **Published:** July 28, 2026
- **Apply:** https://www.dice.com/job-detail/a47b25fb-b483-46bb-a5df-1620099b0761

## About the Role

Skills RequiredCA-7, Performance Testing, Job Control Language (JCL), Root Cause Analysis, Software Testing, z/OS, AIPGEE, Batch Processing, SQL, IBM DB2, GitHub, TSO/ISPF, REST APIs, Customer Information Control System (CICS), Application Support, Program Analysis, COBOL, Mainframe Systems, JSON, Application Testing, Agile Software Development, GitHub Copilot, AI-Assisted Development, Prompt Engineering, LLM API Integration, AI Code Review

Skills PreferredProcess Improvement, Google Cloud Platform, BigQuery, Data Migration, Data Management

Experience Required10+ years of experience in IT, 8+ years of experience in software development

Education RequiredBachelor's degree

## Description

Key ResponsibilitiesEngage with customers to deeply understand their use cases, pain points, and requirements, demonstrating empathy and advocating for user-centric software solutions.Solve complex problems by designing, developing, and delivering solutions using various tools, programming languages, frameworks, methodologies-including Agile-and technologies, including AI-assisted coding tools such as GitHub Copilot, OpenCode, or similar LLM-based development assistants.Assess software application or service requirements and determine the most suitable technology stack, integration method, deployment strategy, and related technical approaches.Create high-level software architecture designs that outline the overall structure, components, and interfaces of applications.Define and implement software testing strategies, guidelines, policies, and processes in alignment with organizational vision, industry regulations, and market best practices.Continuously improve performance, optimize
applications, and implement new technologies to maximize development efficiency.Apply programming practices such as test-driven development, continuous integration, and continuous delivery.Support security practices that safeguard user data, including encryption and anonymization.Develop and maintain back-end applications, including APIs and microservices, using server-side programming languages.


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