(USA) Senior, Systems and Infrastructure Engineer

**Position Summary...**
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.

**What you'll do...**
Storage Operations & Engineering · 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...