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# Mainframe Storage Specialist / System Programmer

- **Company:** Galaxy i Technologies, Inc
- **Location:** Plano, TX, United States
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Continuous Availability, Disaster Recovery, IBM Parallel Sysplex, Job Control Language (JCL), Rexx (Programming Language), Mainframes, Performance Tuning, Subsystems, Tape Libraries, Virtual Storage Access Methods, Virtual Tape Library, Z/OS, Tso/ispf, Omegamon
- **Published:** August 31, 2026
- **Apply:** https://www.dice.com/job-detail/246ce8c7-db7a-44a1-bee0-daf7806d826a

## About the Role

* 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.

## Description

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., * 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.


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