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# z/OS Systems Engineer

- **Company:** PTR Global
- **Location:** Chicago, IL, United States
- **Experience:** Expert
- **Salary:** $124,800.0 - $135,200.0
- **Contract:** Permanent contract
- **Skills:** C (Programming Language), Java (Programming Language), Systems Engineering, Assembly Language, Unix, Customer Information Control System (CICS), COBOL (Programming Language), Computer Programming, IBM DB2, Digital Technology, IBM Parallel Sysplex, IBM Mainframe, Rexx (Programming Language), Job Entry Subsystem 2/3, Software Configuration Management, Software Engineering, Software Systems, TCP/IP, Z/OS, Data Storage Management, Data Analytics, Programming Languages
- **Published:** June 20, 2026
- **Apply:** https://www.dice.com/job-detail/05bb6583-13a7-4278-91b1-438bb6b65a53

## About the Role

+ Bachelor's degree.
 + 3 years of experience with IBM mainframes.
 + Working knowledge of the following:
o z/OS operating systems, including JES2.
o IBM Assembler Language programming.
o Parallel Sysplex clustering technology.
o Unix System Services (USS).
o IPCS, SMP/E.
o TCP/IP, OSA, VTAM.
o WLM.
o IBM Mainframe: z/OS and JES2.
o Programming languages: IBM Assembler, JAVA, Cobol, C, REXX.

 + Must be legally authorized to work in the United States for any employer without sponsorship.
 + Successful completion of an interview required to meet job qualifications.
 + Reliable, punctual attendance is an essential function of the position., + 3-10 years of experience with IBM mainframes.

## Description

The Digital Technology team is comprised of talented individuals working together with cutting-edge technology to build the best airline in the history of aviation. Our team designs, develops, and maintains massively scaling technology solutions brought to life with innovative architectures, data analytics, and digital solutions.

The Senior z/OS Systems Engineer provides critical support for IBM mainframe infrastructure, ensuring optimal performance and reliability of z/OS environments. This role combines hands-on technical expertise in mainframe hardware and software with strong problem-solving and collaboration skills across multiple support teams.

Responsibilities:

 * System Operations Maintenance:
 + Provide support for IBM mainframe hardware and software technologies.
 + Monitor daily operations of the environment.
 + Install, configure, and maintain IBM ISV mainframe software.
 + Participate in on-call rotation and work non-business hours to resolve production problems and perform scheduled off-hour activities.
 * Problem Resolution Collaboration:
 + Analyze and coordinate resolution of problems.
 + Interface with vendor support groups and other departments to ensure proper escalation and coordination towards problem resolution.
 + Collaborate with Storage Management, CICS Support, DB2 Support, IDMS Support, Capacity Planning, Operations Coverage groups, and applications staff as required.
 * Development Testing:
 + Develop IBM mainframe solutions in support of applications development projects.
 + Perform acceptance testing of hardware and software solutions.
 * Documentation Reporting:
 + Develop, publish, and maintain documentation related to projects, hardware, and software configuration and installation.
 + Prepare status reports and problem summaries as required.


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