(USA) Systems and Infrastructure Engineer II
About The Position
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. The position involves managing storage pools, including adding volumes, cleanup, and reclaiming unused volumes, and providing support for space allocation recommendations and usage optimization. It also requires administering and maintaining IBM DS8K storage systems, supporting multiple large-scale parallel sysplex environments with data sharing, and performing system initialization, performance tuning, and subsystem optimization. Key aspects include supporting virtual tape operations, ideally with experience in Luminex virtual tape systems, working with DFHSM for hierarchical storage management, and utilizing tools like FDR and MVSRM for backup, recovery, and storage resource management. Furthermore, the role encompasses supporting IBM GDPS environments, including Metro Mirror, Global Mirror, Metro-Global Mirror, and Hyperswap, participating in Disaster Recovery planning, testing, and execution, maintaining DR readiness across mainframe storage assets, and utilizing JCL and TSO.
Requirements
- 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.
- 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.
Nice To Haves
- 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.
- Experience with BMC Tools (MainView / AMI OPS, SRM, AutoOps).
- Experience with Compuware (FileAid, Xpediter).
- Experience with Scheduling & Automation (ControlM or ICE conversion experience, OPS/MVS).
- Experience with 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).
- Familiarity with Web Content Accessibility Guidelines (WCAG) 2.2 AA standards, assistive technologies, and integrating digital accessibility seamlessly.
- Knowledge of accessibility best practices.
Responsibilities
- 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, TSO.
Benefits
- Competitive pay
- Performance-based bonus awards
- Health benefits (medical, vision and dental coverage)
- 401(k)
- Stock purchase
- Company-paid life insurance
- Paid time off (PTO, including sick leave)
- Parental leave
- Family care leave
- Bereavement
- Jury duty
- Voting leave
- Short-term disability
- Long-term disability
- Company discounts
- Military Leave Pay
- Adoption and surrogacy expense reimbursement
- Live Better U (Walmart-paid education benefit program for full-time and part-time associates)
- Tuition, books, and fees are completely paid for by Walmart
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What This Job Offers
Job Type
Full-time
Career Level
Mid Level
Number of Employees
1-10 employees
