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About Walmart
Walmart Inc. is the world''s largest retailer by revenue, operating a chain of hypermarkets, discount department stores, and grocery stores, as well as a growing e-commerce presence through Walmart.com. Industry: General Merchandise & Grocery Retail
Walmart currently has
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Listed pay typically runs
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As a (USA) Senior, Systems and Infrastructure Engineer, you will join the Mainframe Independent Software Vendor team to manage third-party software critical to operations, security, and data management. You will own the end-to-end lifecycle of ISV products on z/OS, including installation, configuration, patching, and upgrades. Your daily responsibilities involve leading complex incident investigations, performing root-cause analysis, and developing automation and AI-enabled solutions to improve operational efficiency. You will utilize JCL, REXX, Python, SQL, and TSO, while supporting Parallel Sysplex environments and products like BMC, Compuware, and Control-M. The role focuses on maintaining stable, secure, and resilient mainframe systems by ensuring configuration standardization, security remediation, and compliance with enterprise standards to support uninterrupted business operations and infrastructure growth.
Manage the end-to-end lifecycle of ISV products on z/OS, including installation, configuration, patching, and upgrades.
Lead complex incident investigations and root-cause analyses to minimize system downtime and risk.
Develop automation and AI-enabled solutions using JCL, REXX, Python, and SQL to improve operational efficiency.
Monitor ISV health and performance using AI-assisted analytics to identify risks and accelerate resolution.
Govern change management, access controls, audit readiness, and security remediation to ensure enterprise compliance.
Maintain centralized repositories for runbooks, configuration standards, and operational knowledge.
Provide technical leadership and mentor associates on operational standards and best practices.
What we're looking for
Must have a Bachelor's degree in computer science, computer engineering, information systems, information technology, or a related area and 3 years of technology infrastructure engineering experience.
Must have 5 years of experience in technology infrastructure engineering across areas such as compute, storage, network, mobility, or virtualization-related technologies.
Must have expertise in z/OS ISV lifecycle management, including onboarding, upgrades, configuration management, decommissioning, and vendor coordination.
Must have experience supporting complex z/OS and Parallel Sysplex environments, including maintenance, performance monitoring, and issue resolution.
Must be proficient in JCL, TSO, REXX, Python, and SQL automation.
Must have hands-on experience with ISV products including BMC, Compuware, Control-M, Mobius, Connect Direct, Tectia SSH, SAS, and MXG.
Must have knowledge of security, compliance, access governance, vulnerability remediation, and audit readiness.
Must have a Master's degree in a related field and 1 year of experience in configuration management, automation, and managing SLOs/SLIs (preferred).
Python
JavaScript
Infrastructure Engineering
Virtualization
Version Control
Release Management
Capacity Planning
Patch Management
Backup Management
System Performance Monitoring
Scripting
IT Resource Utilization
WCAG) 2.2 AA