(USA) Senior, Systems and Infrastructure Engineer
Walmart
- Location
- Onsite ((USA) ISD Office - DGTC AR BENTONVILLE Home Office, Arkansas)
- Compensation
- $80k - $155k/yr
- Employment
- Full-time
- Level
- Senior Level
Posted 2 days ago
About the Role
Walmart seeks a Senior Systems and Infrastructure Engineer to optimize enterprise mainframe storage infrastructure. The role ensures resilience and performance for mission-critical workloads across high-availability parallel sysplex environments.
Skills
IBM DS8K
DFHSM
DFSMS
FDR
MVSRM
JCL
TSO
Rexx
CLIST
SMPE
IBM GDPS
UNIX System Services
Mainframe Storage Management
Parallel Sysplex
Disaster Recovery Planning
Performance Tuning
Benefits
- Medical Insurance
- Vision Insurance
- Dental Insurance
- 401k
- Life Insurance
- PTO
- Parental Leave
- Disability
Perks
- Stock Purchase Plan
- Education Benefit
Full job details
Position Summary...
What you'll do...
Mainframe Storage Engineer Role 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. Core Responsibilities 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 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
- 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).
- 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.
- 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.
- Strong 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.
Eligibility requirements apply to some benefits and may depend on your job classification and length of employment. Benefits are subject to change and may be subject to a specific plan or program terms.
For information about benefits and eligibility, see One.Walmart.
The annual salary range for this position is $80,000.00 - $155,000.00 Additional compensation includes annual or quarterly performance bonuses. Additional compensation for certain positions may also include :
- Stock
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Minimum Qualifications...
Outlined below are the required minimum qualifications for this position. If none are listed, there are no minimum qualifications.
Option 1: 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.Option 2: 5 years’ experience in technology infrastructure engineering across areas such as compute, storage, network, mobility or virtualization relatedtechnologies.
Preferred Qualifications...
Outlined below are the optional preferred qualifications for this position. If none are listed, there are no preferred qualifications.
Master’s degree in computer science, computer engineering, information systems, information technology, or related area. and 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., 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.