Mainframe z/OS System Programmer

Motion Recruitment

Chandler (AZ)

Hybrid

USD 120,000 - 190,000

Full time

14 days+

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Job summary

Motion Recruitment seeks a skilled Mainframe z/OS Systems Programmer to join its enterprise client in Phoenix, AZ. This full-time hybrid role requires three on-site days weekly and focuses on IBM z/OS, JES2/JES3, RACF, and related platforms in a mission-critical environment.

The ideal candidate will administer z/OS, perform upgrades, monitor performance, and contribute to automation and security initiatives within a large-scale enterprise.

Qualifications

Experience administering IBM z/OS environments.
Strong knowledge of JES2 and JES3.
Experience with TSO/E, ISPF, and USS.
RACF administration and security management.
Knowledge of RMF, SMF, and SDSF performance monitoring tools.
Experience performing z/OS upgrades and maintenance activities.
Strong troubleshooting and root-cause analysis skills.
Experience supporting enterprise change management processes.
Automation experience using REXX, CLIST, NetView, or SA z/OS.

Responsibilities

Administer and maintain IBM z/OS operating systems.
Implement system upgrades, patches, and maintenance activities.
Monitor platform health and optimize performance.
Support security, compliance, and access management initiatives.
Create and maintain automation solutions.
Troubleshoot and resolve production incidents.
Participate in change implementation activities.
Develop and maintain operational documentation.

Skills

IBM z/OS administration

JES2/JES3

TSO/E/ISPF/USS

RACF administration

RMF/SMF/SDSF

z/OS upgrades

Root-cause analysis

Change management

Automation: REXX/CLIST/NetView

SA z/OS scripting

Tools

NetView

SDSF

RMF

Job description

A well-established enterprise technology organization is seeking a Mainframe z/OS Systems Programmerto join its infrastructure team in Phoenix, Arizona.This is a full-time hybrid positionrequiring three days onsite per week. The environment includes IBM z/OS, RACF, JES2/JES3, REXX, NetView, DB2, CICS, IMS, MQ, and enterprise automation platforms that support mission-critical business operations.

This opportunity is ideal for experienced mainframe professionals who enjoy solving complex infrastructure challenges, improving system reliability, and contributing to modernization initiatives. The organization is investing in automation, performance optimization, security enhancement, and long-term platform stability. Candidates will have the opportunity to work within a large-scale enterprise environment while maintaining strong technical ownership of mission-critical systems.

Required Skills & Experience