(USA) Senior, Systems and Infrastructure Engineer

Walmart • Bentonville, AR

1d • $80,000 - $155,000 • Onsite

About The Position

The Mainframe Storage Engineer is responsible for supporting and optimizing 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 engineer works closely with mainframe systems, capacity planning, operations, and application teams to ensure resilience, performance, and operational excellence.

Requirements

• Deep knowledge of DFHSM, DFSMS, FDR, MVSRM, and related storage utilities.
• Experience managing mainframe storage pools and volume lifecycle operations.
• Strong understanding of mainframe storage concepts, catalogs, and alias structures.
• MVS System commands, catalog management.
• Strong skills with JCL, TSO, Rexx & CLIST scripting.
• Experience with SMPE for installation and maintenance.
• Experience with UNIX System Services (file systems, mounts).
• Experience with multi‑site and multi‑sysplex environments.
• Familiarity with IBM GDPS and replication technologies.
• IBM DS8K storage experience required.
• Experience with DB2/IMS utilities.
• Knowledge of system initialization, tuning, and performance optimization.
• Bachelor's degree in computer science, computer engineering, information systems, information technology, or related area and 3 years’experience in technology infrastructure engineering across areas such as compute, storage, network, mobility or virtualization-related technologies.
• OR 5 years’ experience in technology infrastructure engineering across areas such as compute, storage, network, mobility or virtualization related technologies.

Nice To Haves

• Experience with Luminex virtual tape systems.
• Familiarity with 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.
• Master’s degree in computer science, computer engineering, information systems, information technology, or related area.
• 1 Year of relevant experience in configuration management, developing automation for Provisioning and Orchestration, experience developing and managing service-level objectives (SLOs)/service level indicators (SLIs) for Infrastructure Service availability and performance.
• 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.
• 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.

Responsibilities

• Manage storage pools, including adding volumes, cleanup, and reclaiming unused volumes.
• Provide expert 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 (preferred but not required).
• 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, and Hyperswap.
• Participate in Disaster Recovery planning, testing, and execution.
• Maintain DR readiness across mainframe storage assets.
• Install, upgrade, and maintain IBM and third‑party mainframe storage-related products.
• Perform SMPE installation and maintenance of program products.
• Use IBM utilities including DB2 and IMS utilities.
• Utilize JCL, TSO, and mainframe scripting (Rexx, CLIST).
• Ability to participate in on‑call rotation as needed.

Benefits

• Medical coverage
• Vision coverage
• Dental coverage
• 401(k)
• Stock purchase
• Company-paid life insurance
• PTO (including sick leave)
• Parental leave
• Family care leave
• Bereavement leave
• Jury duty leave
• Voting leave
• Short-term disability
• Long-term disability
• Company discounts
• Military Leave Pay
• Adoption expense reimbursement
• Surrogacy expense reimbursement
• PTO and/or PPTO that can be used for vacation, sick leave, holidays, or other purposes.
• Live Better U (Walmart-paid education benefit program for full-time and part-time associates)

What This Job Offers

• Job Type: Full-time
• Career Level: Senior