> Markdown version of [/jobs/ext/4706843-mainframe-developer](https://www.wearedevelopers.com/jobs/ext/4706843-mainframe-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 Developer - **Company:** Menzo Technologies Corp - **Location:** Chicago, IL, United States - **Experience:** Expert - **Contract:** Contract - **Skills:** .NET Framework, Batch Processing, Customer Information Control System (CICS), COBOL (Programming Language), IBM DB2, Software Debugging, Distributed Systems, Job Control Language (JCL), Job Scheduling, Mainframes, Performance Tuning, Software Engineering, Virtual Storage Access Methods, Z/OS, Application Enhancement Tool - **Published:** November 13, 2026 - **Apply:** https://www.dice.com/job-detail/c5d58bf7-1804-42de-9302-bcb01a13aed3 ## About the Role * COBOL * JCL * DB2 * IBM z/OS * CICS * VSAM * IMS * Batch Processing * Mainframe Application Development * Production Support & Troubleshooting * Job Scheduling * Application Debugging & Performance Tuning What We Are Looking For: Candidates must have strong hands-on experience in COBOL development, JCL, DB2, and IBM z/OS, along with experience supporting enterprise mainframe applications. Candidates should be comfortable working on application enhancements, production support, debugging, batch and online processing, and collaborating with business and technical teams. Experience with CICS, VSAM, IMS, mainframe modernization, and integration with distributed systems such as Java/.NET will be highly preferred.