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# Senior Developer - IBM z/OS Connect

- **Company:** Manpower
- **Location:** Columbus, OH, 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:** October 16, 2026
- **Apply:** https://dejobs.org/x/x/E5581A3775F4471BA978F4446AE465E1/job/

## 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., * 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.

## Description

* 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.