Senior IBM z/OS & z/OS Connect Engineer

ITTConnect; Columbus (OH); On-site; USD 96,000 - 152,000; Full time

Job summary

ITTConnect is seeking a Senior z/OS z/OS Connect Administrator to work on site in Columbus, OH. The role combines z/OS systems administration with z/OS Connect EE and Liberty API work in a contract setting for a global client in utilities.

The candidate should have deep hands-on experience in z/OS, RACF, CICS, and API development, with strong collaboration across security, infrastructure, and DevOps teams.

Qualifications

• At least five years of hands‑on IBM z/OS Connect EE experience.
• Experience configuring z/OS Connect EE and Liberty Server.
• Experience with SMP/E maintenance and PTF/APAR handling.
• Strong knowledge of z/OS system operations and RACF.
• Ability to collaborate across mainframe teams.

Responsibilities

• Administer and support enterprise IBM z/OS environments across multiple LPARs and Sysplex configurations.
• Perform z/OS system maintenance using SMP/E, including RECEIVE, APPLY and ACCEPT processing for PTFs, APARs and maintenance packages.
• Support z/OS upgrades, IPL planning and execution, system initialization and post IPL validation.
• Configure and support RACF users, groups, resource profiles, started‑task identities and access controls.
• Develop, deploy and manage REST APIs that expose CICS transactions and other mainframe services.
• Collaborate with mainframe systems, CICS, security, infrastructure, networking, DevOps and API‑management teams.

Skills

z/OS Systems Administration

z/OS Connect EE

API development

Communication

Tools

SMP/E

PTF/APAR handling

JES2

RACF

Liberty Server

WebSphere Liberty

CICS

Job description

ITTConnect is seeking a Senior z/OS z/OS Connect Administrator to work on site in Columbus, OH. The role combines z/OS systems administration with z/OS Connect EE and Liberty API work in a contract setting for a global client in utilities.

The candidate should have deep hands-on experience in z/OS, RACF, CICS, and API development, with strong collaboration across security, infrastructure, and DevOps teams.