(USA) Systems and Infrastructure Engineer III

Join Walmart's mainframe team as a Systems and Infrastructure Engineer, where you will be responsible for supporting, maintaining, and enhancing critical independent software vendor (ISV) products on the z/OS platform. This role offers the opportunity to collaborate with internal teams and vendors to ensure the reliable operation and integration of essential ISV solutions within our large-scale mainframe environment.

• z/OS ISV lifecycle management including onboarding, upgrades, and decommissioning
• Support for complex z/OS and Parallel Sysplex environments
• Troubleshooting, escalation, and solution evaluation
• Knowledge of security, compliance, and audit readiness
• Proficiency in JCL, TSO, REXX, Python, and SQL automation
• Experience with key ISV products (BMC, Compuware, Control-M, etc.)