Mainframe Storage Specialist / System Programmer

Galaxy i Technologies, Inc

Plano, TX, United States

4 days ago

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Role details

Contract type

Permanent contract

Employment type

Full-time (> 32 hours)

Experience level

Expert

Experience required

5 years minimum

Working hours

Regular working hours

Job source

www.dice.com

Tech stack

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

+2 more

Tso/ispf Omegamon

Job 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.

Requirements

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.