> Markdown version of [/jobs/ext/4668359-mainframe-integration-developer](https://www.wearedevelopers.com/jobs/ext/4668359-mainframe-integration-developer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Mainframe Integration Developer - **Company:** Stellar Professionals - **Location:** Des Moines, IA, United States (Remote available) - **Contract:** Contract - **Skills:** Agile Methodology, Unit Testing, COBOL (Programming Language), Databases, Data Integration, Data Mapping, Database Development, File Transfer, Job Control Language (JCL), Mainframes, Parsing, Software Deployment, Systems Integration, Virtual Storage Access Methods, File Transfer Protocol (FTP), Control M - **Published:** November 11, 2026 - **Apply:** https://www.dice.com/job-detail/e34dd09e-3c27-4445-85ce-8b5c14b14618 ## About the Role * Core Technologies: COBOL, JCL, VSAM, and IDMS database development. * Batch & Scheduling: Hands-on experience with enterprise schedulers (CA7, Control-M, or equivalent) and automated file transfers. * Interface & Data Integration: Proven ability in data mapping, flat file parsing, and legacy system modernization. * Problem Solving: Strong root-cause analysis and technical specification interpretation skills. < data-path-to-node="18" dir="ltr">Preferred Qualifications * Background supporting Child Support Enforcement or Public Assistance/Human Services systems. * Experience with large-scale government modernization initiatives. * Familiarity with Agile/hybrid project environments and production deployment practices. ## Description * Development & Maintenance: Write, modify, and optimize COBOL and JCL programs to process interface files and batch workflows. * System Integration: Map data, manage VSAM datasets, navigate IDMS databases, and handle file transfers (FTP/SFTP). * Modernization & Testing: Support the transition from legacy data sources to modern platforms by conducting unit testing, resolving defects, and building technical runbooks. * Operational Support: Create JCL/PROCs, troubleshoot batch errors, and assist with deployment cutovers.