Mainframe z/OS System Programmer

Hybrid in Phoenix, AZ, US • Posted 7 hours ago • Updated 7 hours ago
Contract Corp To Corp
Contract Independent
Contract W2
Hybrid
Depends on Experience
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Job Details

Skills

  • IBM z/OS
  • JES2/JES3
  • TSO/E
  • ISPF
  • USS
  • RACF
  • DB2
  • CICS
  • IMS
  • MQ

Summary

Mainframe z/OS System Programmer

Phoenix, AZ

Onsite-Hybrid

The Mainframe z/OS System Programmer is responsible for the installation, customization, maintenance, and optimization of IBM z/OS operating systems and associated system software. This role ensures the stability, performance, security, and availability of mission-critical mainframe environments, supporting large-scale enterprise applications.

System Administration & Maintenance

  • Install, configure, and maintain IBM z/OS operating systems.
  • Perform system upgrades, migrations (e.g., z/OS version upgrades), and apply maintenance (PTFs, APARs, RSUs).
  • Manage IPL processes, system initialization, and configuration (PARMLIB, PROCLIB, SYS1 datasets).
  • Monitor system health and performance using tools such as RMF, SMF, SDSF.

Subsystem Support

  • Install, configure, and support key subsystems:
    • JES2/JES3
    • TSO/E, ISPF
    • USS (Unix System Services)
    • RACF (in coordination with security teams)
    • Work closely with DB2, CICS, IMS, MQ, and Storage teams for integration and support
Employers have access to artificial intelligence language tools (“AI”) that help generate and enhance job descriptions and AI may have been used to create this description. The position description has been reviewed for accuracy and Dice believes it to correctly reflect the job opportunity.
  • Dice Id: 91165791
  • Position Id: 9013397
  • Posted 7 hours ago

Company Info

About Keen Technology Solutions LLC

Keen Technology Solutions headquarted in Irving, TX, with more than 25 Years of IT professional resourcing and managed services, we empower organizations across the full lifecycle of technology adoption, providing flexible solutions that adapt to their needs as technologies and skills evolve.

Keen is a world-class technology services business that incorporates industry insights and experience to deliver solutions that fulfil our clients’ digital visions. We use our unique deployment model to build qualified, industry specialized fit-for-purpose teams combined with proven solutions and service models to achieve results. Our agility and obsession with providing value enables us to support an ever-evolving digital world.

WORKING WITH KEEN
"One big positive for me is Keen ensures there is a continuous dialogue with the client and wants to make sure the candidates are qualified and progressing as expected…. they are professionals with a strong customer focus. Keen Account Managers go the extra mile to ensure qualified candidates are presented and are always keeping in touch. That is important in this business. "

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SK

Sai Krishna

Recruiter @ Keen Technology Solutions LLC
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