Senior Software Engineer - Store Systems Mainframe Support

What you'll do... Join a high-performing Mainframe Support team responsible for the stability and enhancement of business-critical store applications. The role provides exposure to multiple business domains including Finance, Inventory, Pricing, and Receiving while supporting more than 1,200 enterprise mainframe jobs. Team members are encouraged to identify improvement opportunities, contribute to application enhancements, and leverage emerging technologies such as AI and automation to improve operational efficiency. This position offers a unique combination of operational ownership, technical depth, innovation, and collaboration within a globally distributed 24-hour support organization About Team: Store Systems Technical Support: Our Mainframe Team is a high-performing, highly collaborative group responsible for supporting some of the most critical business processes across Walmart's store ecosystem. The team provides operational and application support for a broad portfolio of systems spanning Finance, Inventory Management, Pricing, Receiving, and other core store operations, ensuring stability and reliability for business-critical workloads. Supporting more than 1,200 mainframe jobs, the team plays a vital role in maintaining the flow of data and transactions that enable stores to operate efficiently every day. Team members work across multiple domains, gaining exposure to diverse business functions and technologies while developing deep expertise in enterprise-scale systems. What sets this team apart is its culture of ownership and continuous improvement. Team members are encouraged not only to support applications but also to identify opportunities for process optimization, influence application enhancements, and drive meaningful change across the platforms they support. The team regularly partners with development, product, and business stakeholders to improve operational effectiveness and customer outcomes. As emerging technologies continue to transform support operations, the team is actively exploring and implementing AI-driven solutions to streamline processes, reduce manual effort, accelerate problem resolution, and improve overall service quality. This creates unique opportunities for engineers to combine traditional mainframe expertise with modern automation and AI capabilities. The team operates with a 24-hour follow-the-sun support model, with coverage shared between Bentonville (BV) and IDC teams. This structure provides continuous support while maintaining predictable schedules, with BV and IDC teams each covering dedicated 12-hour shifts. For individuals who enjoy solving complex business problems, working across multiple domains, influencing change, and helping modernize enterprise support through automation and AI, this team offers a unique and rewarding opportunity. *Immigration Sponsorship support is NOT available for this role* What you'll do: This isn't a traditional support role. You'll be trusted to solve complex business problems, influence application improvements, contribute to modernization initiatives, and support systems that directly impact store operations worldwide. The role offers a unique blend of production support, engineering collaboration, application analysis, and innovation, making it an excellent opportunity for someone who enjoys both operational excellence and driving change.