Mainframes Developer Jobs in Missouri (NOW HIRING)

Position Summary... 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.

What you'll bring:

• Strong understanding of enterprise mainframe environments with experience in COBOL, CICS, DB2, JCL, Control M,  Scheduler, and batch processing.
• Strong understanding of next generation data platforms to include GCP,  SQL Server.
• Proven ability to analyze complex application flows, troubleshoot production issues, and collaborate with development teams to support modernization initiatives.
• Experience with automation, process improvement, and emerging technologies, including AI-assisted operational solutions. The above information has been designed to indicate the general nature and level of work performed in the role. It is not designed to contain or be interpreted as a comprehensive inventory of all duties, responsibilities and qualifications required of employees assigned to this job. The full Job Description can be made available as part of the hiring process.
  About Walmart Global Tech:
  Imagine working in an environment where one line of code can make life easier for hundreds of millions of people. Thats what we do at Walmart Global Tech. Were a team of software engineers, data scientists, cybersecurity experts and service professionals within the world’s leading retailer who make an epic impact and are at the forefront of the next retail disruption. People are why we innovate, and people power our innovations. Weare people-led and tech-empowered. We train our team in the skillsets of the future and bring in experts like you to help us grow. We have roles for those chasing their first opportunity as well as those looking for the opportunity that will define their career. Here, you can kickstart a great career in tech, gain new skills and experience for virtually every industry, or leverage your expertise to innovate at scale, impact millions and reimagine the future of retail.
  Benefits and Perks:
  Beyond competitive pay, you can receive incentive awards for your performance. Other great benefits include a 401(k) match, stock purchase plan, paid maternity and parental leave, PTO, multiple health plans, flexible working hours, and more.
  We are reimagining the tech workplace by making a permanent transition to virtual work for most of our team. Of course, being together in person is an important part of our culture and shared success. Well collaborate in person at a regular cadence and with purpose.
  Living the Walmart Value:
  Focus on our Associates / Belonging - Identifies, attracts, and retains top talent; builds a high-performing team; embraces a culture of belonging.
  Equal Opportunity Employer:
  Walmart, Inc., is an Equal Opportunity Employer By Choice. We believe we are best equipped to help our associates, customers and the communities we serve live better when we really know them. That means understanding, respecting and valuing unique styles, experiences, identities, ideas and opinions while being inclusive of all people.

At Walmart, we offer competitive pay as well as performance-based bonus awards and other great benefits for a happier mind, body, and wallet. Health benefits include medical, vision and dental coverage. Financial benefits include 401(k), stock purchase and company-paid life insurance. Paid time off benefits include PTO (including sick leave), parental leave, family care leave, bereavement, jury duty, and voting. Other benefits include short-term and long-term disability, company discounts, Military Leave Pay, adoption and surrogacy expense reimbursement, and more. You will also receive PTO and/or PPTO that can be used for vacation, sick leave, holidays, or other purposes. The amount you receive depends on your job classification and length of employment. It will meet or exceed the requirements of paid sick leave laws, where applicable. For information about PTO, see https://one.walmart.com/notices. Live Better U is a Walmart-paid education benefit program for full-time and part-time associates in Walmart and Sam's Club facilities. Programs range from high school completion to bachelor's degrees, including English Language Learning and short-form certificates. Tuition, books, and fees are completely paid for by Walmart.
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 $90,000.00 - $180,000.00 Additional compensation includes annual or quarterly performance bonuses. Additional compensation for certain positions may also include :
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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, computer information systems, software engineering, or related area and 3 years’ experience in software engineering or related area.
Option 2: 5 years’ experience in software engineering or related area. 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, Computer Information Systems, Software Engineering, or related area and 1 year's experience in software engineering or related area., 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. Primary Location... 2608 Se J St, Bentonville, AR 72716-3724, United States of America Walmart and its subsidiaries are committed to maintaining a drug-free workplace and has a no tolerance policy regarding the use of illegal drugs and alcohol on the job. This policy applies to all employees and aims to create a safe and productive work environment.