{"schemaVersion":"jobsearcher.job.v1","id":"efd1cab4e7afb320f10a0d77","url":"https://jobsearcher.com/jobs/efd1cab4e7afb320f10a0d77","canonicalUrl":"https://jobsearcher.com/jobs/efd1cab4e7afb320f10a0d77","title":"Mainframe Developer","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. Responsibilities: ​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. Requirements 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​.","company":"Mdaedge","rawCompany":"mdaedge","city":"Moline","state":"IL","isRemote":false,"isActive":false,"createdAt":"2026-07-03T08:58:04.013Z","occupations":[{"code":"15-1252.00","title":"Software Developers","slug":"software-developers"},{"code":"15-1251.00","title":"Computer Programmers","slug":"computer-programmers"},{"code":"15-1254.00","title":"Web Developers","slug":"web-developers"}],"industries":[{"code":"541511","title":"Custom Computer Programming Services","slug":"custom-computer-programming-services"},{"code":"541512","title":"Computer Systems Design Services","slug":"computer-systems-design-services"},{"code":"513210","title":"Software Publishers","slug":"software-publishers"}],"jobPosting":{"@context":"https://schema.org","@type":"JobPosting","title":"Mainframe Developer","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. Responsibilities: ​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. Requirements 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​.","datePosted":"2026-07-03T08:58:04.013Z","dateModified":"2026-07-03T08:58:04.013Z","hiringOrganization":{"@type":"Organization","name":"Mdaedge","sameAs":"https://jobsearcher.com"},"jobLocation":{"@type":"Place","address":{"@type":"PostalAddress","addressLocality":"Moline","addressRegion":"IL","addressCountry":"US"}},"identifier":{"@type":"PropertyValue","name":"JobSearcher","value":"efd1cab4e7afb320f10a0d77"},"url":"https://jobsearcher.com/jobs/efd1cab4e7afb320f10a0d77"}}