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# Mainframe Developer

- **Company:** Insight Global
- **Location:** West Des Moines, IA, United States
- **Experience:** Expert
- **Salary:** $93,600 - $114,400
- **Contract:** Permanent contract
- **Skills:** Application Performance Management, Architectural Patterns, Business Software, COBOL (Programming Language), Code Reuse, Software Debugging, Job Control Language (JCL), Mainframes, Software Engineering
- **Published:** November 7, 2026
- **Apply:** https://www.juju.com/job/2_174258906

## About the Role

* 6+ years of Mainframe development experience
 * Strong experience with: COBOL and JCL
 * Solid understanding of mainframe application design and architecture
 * Experience supporting enterprise-scale applications
 * Strong problem-solving and debugging skills
 * Ability to write clean, readable, and well-structured code

## Description

Insight Global is seeking a Mainframe Application Developer to design, build, and support core business applications. This role focuses on translating business requirements and use cases into reliable, high-performing mainframe solutions while ensuring long-term scalability, maintainability, and performance. The ideal candidate is a strong COBOL developer who understands mainframe batch and online processing, has experience navigating enterprise mainframe environments, and writes clean, structured, reusable code.

 * Translate business requirements, storyboards, and use cases into functional mainframe applications
 * Working on Backlogs and Tech debts
 * Ensure application performance, quality, and responsiveness
 * Identify system bottlenecks and defects, and implement effective solutions
 * Apply appropriate design and architectural patterns in a mainframe environment
 * Develop reusable code libraries and utilities
 * Collaborate with cross-functional teams to support ongoing enhancements and maintenance