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Mainframe Storage Specialist / System Programmer

Galaxy i Technologies, Inc.
Plano, TX Contractor
POSTED ON 9/1/2026
AVAILABLE BEFORE 10/1/2026

Position: Mainframe Storage Specialist / System Programmer

Location: Plano, TX (On-Site)

 

About the Role

We are seeking a Mainframe Storage Specialist based in Plano, TX, to administer, optimize, and secure mission-critical IBM z/OS storage environments. Sitting within Plano’s enterprise technology corridor, this role is responsible for Direct Access Storage Devices (DASD), virtual tape subsystems, capacity planning, and business continuity/disaster recovery (BC/DR) execution.

Key Responsibilities

  • DASD & Subsystem Management: Manage IBM DS8000 and Hitachi VSP hardware using DFSMS, DFSMShsm, DFSMSdss, DFP, and ICF Catalogs. Perform DASD-to-DASD migrations and VSAM tuning.

  • Tape Management Systems: Oversee Virtual Tape Server (VTS) and Automated Tape Libraries (ATL) via IBM RMM, CA-1, or DFSMSrmm.

  • Disaster Recovery & Replication: Maintain continuous availability using GDPS, Copy Services Manager (CSM), FlashCopy, Metro Mirror, and Global Mirror technologies. Lead regular DR exercises and recovery testing.

  • Capacity & Performance Optimization: Track storage trends, execute space-reclamation initiatives, monitor SMS pool allocations, and prevent space-related abends.

  • Support & Automation: Provide 24x7 operational escalation support for storage-related incidents, write/modify REXX or JCL scripts for routine operational automation, and apply regular z/OS storage maintenance.

Required Qualifications

  • Experience: 5–8 years of hands-on experience as a Mainframe z/OS System Programmer or Storage Specialist.

  • Core Toolset Mastery:

    • DFS Storage Family: DFSMS, DFSMShsm, DFSMSdss, DFP.

    • Utilities & Monitoring: ICKDSF, TSO/ISPF, JCL, REXX, Mainview, or Omegamon.

    • Tape Management: DFSMSrmm, CA-1, or CA-TLMS.

    • Data & Catalog Management: ICF Catalogs, IDCAMS, VSAM allocation and management.

  • Hardware Expertise: Direct experience managing IBM DS8000 series storage frames, IBM TS7700 VTS, or Hitachi/Dell EMC mainframe storage arrays.

Salary : $50 - $55

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