Senior IBM Mainframe, z​/OS Connect Administrator​/Developer

Columbus, OH, United States (On-site)

Contract (2 months 6 days)

Published 2 days ago

CICS Integration

Dev Ops & CI/CD

Performance Troubleshooting

cross - functional collaboration

production support

api management

Sysplex

An experienced IBM z/OS Connect Administrator / Developer to 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.

• 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.

5+ years of experience with IBM z/OS Connect EE.

Strong hands-on experience with:

• IBM CICS Transaction Server
• RACF
• REST APIs / JSON
• JWT and OAuth2 Authentication
• TLS/SSL Security
• Dev Ops 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.

The pay range that the employer in good faith reasonably expects to pay for this position is $39.30/hour - $61.40/hour. Our benefits include medical, dental, vision and retirement benefits. Applications will be accepted on an ongoing basis.

Tundra Technical Solutions is among North America’s leading providers of Staffing and Consulting Services. Our success and our clients’ success are built on a foundation of service excellence. We are an equal opportunity employer, and we do not discriminate on the basis of race, religion, color, national origin, sex, sexual orientation, age, veteran status, disability, genetic information, or other applicable legally protected characteristic.

Qualified applicants with arrest or conviction records will be considered for employment in accordance with applicable law, including the Los Angeles County Fair Chance Ordinance for Employers and the California Fair Chance Act. Unincorporated LA County workers: we reasonably believe that criminal history may have a direct, adverse and negative relationship with the following job duties, potentially resulting in the withdrawal of a conditional offer of employment: client provided property, including hardware (both of which may include data) entrusted to you from theft, loss or damage;

return all portable client computer hardware in your possession (including the data contained therein) upon completion of the assignment, and; maintain the confidentiality of client proprietary, confidential, or non-public information. In addition, job duties require access to secure and protected client information technology systems and related data security obligations.