ITTConnect is seeking a Senior IBM z/OS Connect Administrator / Developer to work on site for a client in the Columbus, OH area. This is a contract position with a client that is a global leader in consulting, digital transformation, technology and engineering services with over 300,000 team members in nearly 50 countries. The end client is in the Utilities sector.
Job location: Columbus, OH (on site work). Relocation OK.
This person will design, implement, and support enterprise-grade API enablement solutions on IBM Mainframe. The ideal candidate should have strong expertise in z/OS Connect EE administration, CICS integration, high availability architecture, security, and REST API implementation.
Key Responsibilities:
- Install, configure, upgrade, and administer IBM z/OS Connect EE environments.
- Design and implement High Availability (HA) deployments across multiple LPARs and multiple z/OS Connect instances.
- Configure and support z/OS Connect integration with CICS regions, CICSPlex, and other mainframe assets.
- Design and implement HA and failover strategies for z/OS Connect and CICS environments.
- Develop, deploy, and manage REST APIs exposing CICS and other mainframe transactions.
- Configure and support RACF-based authentication and authorization.
- Implement JWT, TLS/SSL, and enterprise security controls for API access.
- Troubleshoot performance, connectivity, and production issues across z/OS Connect, CICS, RACF, and networking layers.
- Collaborate with Mainframe, Security, Infrastructure, and API Management teams.
Requirements
- 5+ years of experience with IBM z/OS Connect EE.
- Strong hands-on experience with:
- IBM z/OS
- z/OS Connect EE
- IBM CICS Transaction Server
- RACF
- REST APIs / JSON
- JWT and OAuth2 Authentication
- TLS/SSL Security
- DevOps and CI/CD automation
- CICSPlex SM and Sysplex environments.
- Experience configuring multi-instance and multi-LPAR HA architectures.
- Experience exposing CICS transactions as REST APIs.
- Strong troubleshooting and production support skills.
- Experience with Liberty Server administration.