> Markdown version of [/jobs/ext/37358-senior-developer-ibm-z-os-connect](https://www.wearedevelopers.com/jobs/ext/37358-senior-developer-ibm-z-os-connect). 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). --- # Senior Developer - IBM z/OS Connect - **Company:** Manpower - **Location:** Nashville, TN, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Application Programming Interfaces (APIs), Customer Information Control System (CICS), COBOL (Programming Language), IBM DB2, Job Control Language (JCL), JSON, IBM Resource Access Control Facility, Swagger, Z/OS, Openapi, Transport Layer Security, Restful APIs, Api Management - **Published:** May 17, 2026 - **Apply:** https://www.juju.com/job/00000000g0dd0k ## About the Role Our client, a leading organization in the technology and financial services sector, is seeking a dedicated and experienced Senior Developer - IBM z/OS Connect to join their dynamic team. As a Senior Developer - IBM z/OS Connect, you will be an integral part of the mainframe modernization initiatives supporting innovative digital transformation projects. The ideal candidate will demonstrate strong problem-solving skills, effective communication, and a collaborative mindset, which will align successfully within the organization., + Design, develop, and deploy RESTful APIs using IBM z/OS Connect Enterprise Edition (EE). + Expose mainframe assets such as CICS, IMS, COBOL, and DB2 as reusable services. + Create and maintain API specifications using Swagger/OpenAPI standards. + Develop and support COBOL programs and interface logic to enable API exposure. + Ensure security, performance, and reliability of mainframe APIs through best practices and troubleshooting. What's Needed? + 7+ years of experience in z/OS mainframe development, including COBOL, JCL, and z/OS utilities. + 3+ years of hands-on experience with IBM z/OS Connect Enterprise Edition. + Strong understanding of RESTful API design, JSON data formats, and API lifecycle management. + Experience with CICS, IMS, DB2, and mainframe security principles such as RACF and TLS/SSL. + Excellent communication skills and ability to collaborate across technical teams. What's in it for me? + Opportunity to work on cutting-edge mainframe modernization projects. + Engagement with a forward-thinking organization committed to innovation. + Collaborative environment fostering professional growth and development. ## 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) - [Tips and Tricks for Working with JSON](https://www.wearedevelopers.com/videos/1229-tips-and-tricks-for-working-with-json) - [Building with IBM Bob](https://www.wearedevelopers.com/videos/100275-building-with-ibm-bob) - [Introducing JSON Structure](https://www.wearedevelopers.com/videos/100219-introducing-json-structure) - [Next Level Enterprise Architecture: Modular, Flexible, Scalable, Multichannel and AI-Ready?](https://www.wearedevelopers.com/videos/1017-next-level-enterprise-architecture-modular-flexible-scalable-multichannel-and-ai-ready) - [JSON and Beyond](https://www.wearedevelopers.com/videos/968-json-and-beyond) ## Related Articles - [What’s the Difference between a Junior, Mid, and Senior Developer?](https://www.wearedevelopers.com/magazine/238-what-s-the-difference-between-a-junior-mid-and-senior-developer) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [Find a Developer Job: 12 Best Job Sites For Developers](https://www.wearedevelopers.com/magazine/165-find-a-developer-job-12-best-job-sites-for-developers) - [Software Developer Salary in Switzerland [2023]](https://www.wearedevelopers.com/magazine/215-software-developer-salary-in-switzerland-2023) - [Why Upskilling And Reskilling is Important For Developers](https://www.wearedevelopers.com/magazine/428-why-upskilling-and-reskilling-is-important-for-developers) - [The Best Job Search Websites of 2025](https://www.wearedevelopers.com/magazine/368-the-best-job-search-websites-of-2025)