(usa) Systems and Infrastructure Engineer II

Walmart Walmart · Retail · ISD - DGTC AR BENTONVILLE

The Mainframe Storage Administrator is responsible for supporting Walmart’s enterprise mainframe storage infrastructure across complex, high availability parallel sysplex environments. This role manages storage pools, virtual tape, disaster recovery processes, and IBM storage technologies that support mission critical workloads at large scale.

What you'd actually do

  1. Manage storage pools, including adding volumes, cleanup, and reclaiming unused volumes.
  2. Provide support for space allocation recommendations and usage optimization.
  3. Administer and maintain IBM DS8K storage systems.
  4. Support multiple large-scale parallel sysplex environments with data sharing.
  5. Perform system initialization, performance tuning, and subsystem optimization.

Skills

Required

  • Knowledge of DFHSM, DFSMS, FDR, MVSRM, and related storage utilities.
  • Experience managing mainframe storage pools and volume lifecycle operations.
  • Understanding of mainframe storage concepts, catalogs, and alias structures.
  • MVS System commands, catalog management.
  • JCL
  • TSO
  • Rexx & CLIST scripting
  • Experience with multi-site and multi-sysplex environments.
  • Familiarity with IBM GDPS and replication technologies.
  • Knowledge of system initialization, tuning, and performance optimization.
  • Ability to participate in on-call rotation as needed.

Nice to have

  • Experience in Luminex virtual tape systems
  • Disaster Recovery methodologies and tooling.
  • Mainframe networking concepts.
  • Experience with storage management and data governance in enterprise environments.
  • Advanced tuning, automation, and tooling for storage workflows.
  • BMC Tools
  • Compuware
  • ControlM or ICE conversion experience
  • OPS/MVS
  • Rocket Software MobiusView / Infopac
  • JCLPlus (SEA)
  • MacKinney Batch for CICS (CEMT)
  • RIO (Vanguard)
  • Sterling Commerce Connect:Direct
  • Tectia SSH
  • UNIX System Services

What the JD emphasized

  • IBM DS8K storage experience required