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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Mainframe Developer - **Company:** Macpower Digital Assets Edge LLC - **Location:** Cincinnati, OH, United States (Remote available) - **Contract:** Permanent contract - **Skills:** Microsoft Access, Batch Processing, Customer Information Control System (CICS), COBOL (Programming Language), Databases, Data Files, Data Security, IBM DB2, Database Development, Software Debugging, Job Control Language (JCL), IBM Mainframe, IBM Information Management System, Interactive System Productivity Facility (ISPF), Mainframes, Online Transaction Processing, Performance Tuning, Systems Development Life Cycle, Pl/i, Secure Coding, Server Administration, Software Engineering, SQL Databases, Z/OS, Transaction Processing (Computing), Data Processing, Programming Languages - **Published:** August 10, 2026 - **Apply:** https://www.careerbuilder.com/job-details/mainframe-developer-cincinnati-oh--56373b81-c3e8-41bd-88c4-1b00a0b41609 ## About the Role * Hands-on experience with IBM z/OS mainframe development. * Strong proficiency in COBOL (or PL/I) * Strong proficiency in JCL and batch job processing concepts * Working experience with DB2 (SQL development and data handling) and/or IMS * Experience with ISPF/TSO and ability to navigate datasets, job logs, and execution outputs * Debugging and troubleshooting skills (including abend analysis) * Understanding of SDLC practices, testing, and release/change processes * Strong communication and documentation skills Technical Key Skills: * Cobol * IBM JCL (Job Control Language). * DB2. * IBM - CICS * IBM - IMS DB/DC ., Access Control, Analysis Skills, Cobol Programming Language, Communication Skills, Cross-Functional, Data Sets, Database Technology, Debugging Skills, Documentation, IBM CICS (Customer Information Control System), IBM DB2, IBM IMS Database, IBM Mainframe Operating System, IBM Product Family, IBM TSO/ISPF, IBM z-OS Operating System, IP Multimedia System (IMS), Identify Issues, JCL (Job Control Language), Mainframe Computer, Microsoft Access Database, On Call, PL/1 (Programming Language 1), Performance Tuning/Optimization, Problem Solving Skills, Production Support, Quality Assurance, Release Notes, Root Cause Analysis, SQL (Structured Query Language), Secure Coding, Software Administration, Software Development Lifecycle (SDLC), Technical Writing, Transaction Processing/Management ## Description Job Summary: We are seeking a Mainframe Developer to develop, enhance, and support mission-critical applications on IBM z/OS. This role includes batch and/or online transaction processing, database work (DB2/IMS), testing, and production support., * Design, develop, and maintain mainframe applications using COBOL (and/or PL/I), JCL, and related technologies. * Develop and support batch processing jobs (job streams, scheduling coordination, restarts, abend handling). * Build and maintain online applications using CICS and/or IMS TM, including transaction and screen/program changes. * Develop and optimize data access using DB2 (SQL) and/or IMS DB; perform basic performance tuning as needed. * Conduct impact analysis, estimate effort, and deliver enhancements/defect fixes through the SDLC (Software Development Life Cycle). * Perform debugging, root-cause analysis, and resolution of production issues; participate in on-call/support rotations as required. * Create and maintain technical documentation (program specs, job flows, runbooks, release notes). * Collaborate with cross-functional teams (business, QA, operations, infrastructure) to ensure stable releases and successful deployments. * Follow secure coding practices and comply with audit, access control, and data handling requirements. ## Related Videos - [Data Fabric in Action - How to enhance a Stock Trading App with ML and Data Virtualization](https://www.wearedevelopers.com/videos/253-data-fabric-in-action-how-to-enhance-a-stock-trading-app-with-ml-and-data-virtualization) - [Fireside Chat with Lea](https://www.wearedevelopers.com/videos/551-fireside-chat-with-lea) - [Building with IBM Bob](https://www.wearedevelopers.com/videos/100275-building-with-ibm-bob) - [".Net is too slow" was not an option](https://www.wearedevelopers.com/videos/100176-net-is-too-slow-was-not-an-option) - [ WeAreDevelopers LIVE - the weekly developer show with Chris Heilmann and Daniel Cranney](https://www.wearedevelopers.com/videos/1365-wearedevelopers-live-the-weekly-developer-show-with-chris-heilmann-and-daniel-cranney) ## Related Articles - [Data Science & more: The Lopez dilemma](https://www.wearedevelopers.com/magazine/10-data-science-more-the-lopez-dilemma) - [93 Java Interview Questions You Should Prepare For](https://www.wearedevelopers.com/magazine/14-93-java-interview-questions-you-should-prepare-for) - [The 10 C++ programming questions to expect in an interview](https://www.wearedevelopers.com/magazine/50-the-10-c-programming-questions-to-expect-in-an-interview) - [Should senior developers refuse interview coding challenges?](https://www.wearedevelopers.com/magazine/29-should-senior-developers-refuse-interview-coding-challenges) - [7 Important Tips That Every Software Developer Should Know](https://www.wearedevelopers.com/magazine/101-7-important-tips-that-every-software-developer-should-know) - [10 Highest Paying Programming Languages 2025](https://www.wearedevelopers.com/magazine/150-10-highest-paying-programming-languages-2025)