(usa) Systems and Infrastructure Engineer II

Walmart Walmart · Retail · Bentonville, AR

This role is for a Systems and Infrastructure Engineer II at Walmart, focusing on supporting and managing the enterprise mainframe storage infrastructure. Responsibilities include managing storage pools, virtual tape operations, disaster recovery processes, and IBM storage systems within complex, high availability parallel sysplex environments. The role requires knowledge of various IBM mainframe storage utilities and technologies, JCL, TSO, and scripting, with a strong emphasis on ensuring resilience, performance, and operational excellence.

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.
  • Skills with: JCL, TSO, Rexx & CLIST scripting
  • Experience with multi-site and multi-sysplex environments.
  • Familiarity with IBM GDPS and replication technologies.
  • IBM DS8K storage experience required.
  • 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
  • Storage management and data governance in enterprise environments
  • Advanced tuning, automation, and tooling for storage workflows
  • BMC Tools (MainView / AMI OPS, SRM, AutoOps)
  • Compuware Tools (FileAid, Xpediter)
  • Scheduling & Automation (ControlM or ICE conversion experience, OPS/MVS)
  • Other Mainframe Products (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