{"schemaVersion":"jobsearcher.job.v1","id":"0f111396023e42b85f98a858","url":"https://jobsearcher.com/jobs/0f111396023e42b85f98a858","canonicalUrl":"https://jobsearcher.com/jobs/0f111396023e42b85f98a858","title":"Mainframe Developer","description":"Mainframe ProgrammerLocation: RemoteLong term contract - 12 Months with possible extensionsJob SummaryLooking for a z/OS Connect Developer with strong CICS webservices experience to develop and support REST APIs that integrate modern applications with mainframe systems. The ideal candidate should have experience with IBM z/OS Connect, REST APIs, OpenAPI, CICS, COBOL, and mainframe environments.Required SkillsHands-on experience with IBM z/OS Connect Enterprise Edition and API development.Strong understanding of REST APIs, HTTP methods, JSON payloads, and OpenAPI/Swagger specifications.Experience integrating APIs with CICS, COBOL, Db2, and IMS applications.Ability to understand COBOL copybooks and mainframe data structures for JSON mapping.Knowledge of z/OS concepts including RACF/SAF security, regions, SMF, and WLM.Experience with API testing and troubleshooting.ResponsibilitiesDesign, develop, and deploy REST APIs using z/OS Connect.Configure API mappings between mainframe applications and JSON services.Support CICS-based API integrations and troubleshoot issues.Collaborate with development and architecture teams on mainframe modernization initiatives.","company":"Tech Observer","rawCompany":"tech observer","city":"Denver","state":"CO","isRemote":false,"isActive":false,"createdAt":"2026-08-14T13:44:53.883Z","occupations":[{"code":"15-1252.00","title":"Software Developers","slug":"software-developers"},{"code":"15-1254.00","title":"Web Developers","slug":"web-developers"},{"code":"15-1251.00","title":"Computer Programmers","slug":"computer-programmers"}],"industries":[{"code":"541512","title":"Computer Systems Design Services","slug":"computer-systems-design-services"},{"code":"541511","title":"Custom Computer Programming Services","slug":"custom-computer-programming-services"},{"code":"513210","title":"Software Publishers","slug":"software-publishers"}],"jobPosting":{"@context":"https://schema.org","@type":"JobPosting","title":"Mainframe Developer","description":"Mainframe ProgrammerLocation: RemoteLong term contract - 12 Months with possible extensionsJob SummaryLooking for a z/OS Connect Developer with strong CICS webservices experience to develop and support REST APIs that integrate modern applications with mainframe systems. The ideal candidate should have experience with IBM z/OS Connect, REST APIs, OpenAPI, CICS, COBOL, and mainframe environments.Required SkillsHands-on experience with IBM z/OS Connect Enterprise Edition and API development.Strong understanding of REST APIs, HTTP methods, JSON payloads, and OpenAPI/Swagger specifications.Experience integrating APIs with CICS, COBOL, Db2, and IMS applications.Ability to understand COBOL copybooks and mainframe data structures for JSON mapping.Knowledge of z/OS concepts including RACF/SAF security, regions, SMF, and WLM.Experience with API testing and troubleshooting.ResponsibilitiesDesign, develop, and deploy REST APIs using z/OS Connect.Configure API mappings between mainframe applications and JSON services.Support CICS-based API integrations and troubleshoot issues.Collaborate with development and architecture teams on mainframe modernization initiatives.","datePosted":"2026-08-14T13:44:53.883Z","dateModified":"2026-08-14T13:44:53.883Z","hiringOrganization":{"@type":"Organization","name":"Tech Observer","sameAs":"https://jobsearcher.com"},"jobLocation":{"@type":"Place","address":{"@type":"PostalAddress","addressLocality":"Denver","addressRegion":"CO","addressCountry":"US"}},"identifier":{"@type":"PropertyValue","name":"JobSearcher","value":"0f111396023e42b85f98a858"},"url":"https://jobsearcher.com/jobs/0f111396023e42b85f98a858"}}