Systems and Infrastructure Engineer II

Position Summary

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. The Administrator works closely with mainframe systems, capacity planning, operations, and application teams to ensure resilience, performance, and operational excellence.

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

• Support virtual tape operations, ideally with experience in Luminex virtual tape systems.
• Work with DFHSM for hierarchical storage management.
• Utilize tools including FDR and MVSRM for backup, recovery, and storage resource management.

• Support IBM GDPS environments, including:
  • Metro Mirror
  • Global Mirror
  • Metro-Global Mirror
  • Hyperswap
• Participate in Disaster Recovery planning, testing, and execution.
• Maintain DR readiness across mainframe storage assets.
• Utilize JCL and TSO.

• Knowledge of DFHSM, DFSMS, FDR, MVSRM, and related storage utilities.
• Experience managing mainframe storage pools and volume lifecycle operations.
• Understanding of mainframe storage concepts, catalogues, 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.

• 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
  • Main View / AMI OPS
  • SRM
  • Auto Ops
• Compuware
  • File Aid
  • Xpediter
• Scheduling & Automation
  • Control
    
    M or ICE conversion experience
  • OPS/MVS
• Other Mainframe Products
  • Rocket Software Mobius View / Infopac
  • JCLPlus (SEA)
  • Mac Kinney Batch for CICS (CEMT)
  • RIO (Vanguard)
  • Sterling Commerce Connect:
    
    Direct
  • Tectia SSH
  • UNIX System Services

• Analytical and troubleshooting abilities.
• Ability to work effectively across cross‑functional teams.
• Strong communication skills, both written and verbal.
• High attention to detail and accuracy.
• Ability to manage multiple priorities in a fast‑paced environment.

• Stability and performance of mainframe storage systems.
• Reduction in storage related incidents and allocation issues.
• Efficiency of storage pool management and reclaiming efforts.
• Successful DR tests and adherence to resiliency requirements.
• Quality of documentation and operational runbooks.

At Walmart, we offer competitive pay as well as performance-based bonus awards and other great benefits for a happier mind, body, and wallet. Health benefits include medical, vision, and dental coverage. Financial benefits include 401(k), stock purchase, and company-paid life insurance. Paid time off benefits include PTO (including sick leave), parental leave, family care leave, bereavement, jury duty, and voting. Other benefits include short‑term and long‑term disability, company discounts, Military Leave Pay, adoption and surrogacy expense reimbursement, and more.

• Option 1:
  Bachelor’s degree in computer science, computer engineering, information systems, information technology, or related area.
• Option 2: 3 years’ experience in technology infrastructure engineering across areas such as compute, storage, network, mobility or virtualization related technologies.

We value candidates with a background in creating inclusive digital experiences, demonstrating knowledge in implementing Web Content Accessibility Guidelines (WCAG) 2.2 AA standards, assistive technologies, and integrating digital accessibility seamlessly. The ideal candidate would have knowledge of accessibility best practices and join us as we continue to create accessible products and services following Walmart’s accessibility standards and guidelines for supporting an inclusive culture.

805 Se Moberly Ln., Bentonville, AR 72712, United States of America