Mainframe Project Manager Jobs in Missouri (NOW HIRING)

Position Summary...What you'll do...Role summary:
The Director of Software Engineering – Payroll leads the design, execution, and modernization of Walmart’s enterprise payroll ecosystem. The role oversees payroll operations for 1.6 million associates across multiple regions, ensuring accuracy, compliance, and system integrity. It drives the transformation of legacy INFOR systems to modern SAP and cloud architectures while maintaining uninterrupted operations. The Director sets payroll technology strategy, manages cross-functional teams, and ensures alignment with regulatory requirements and enterprise platforms to deliver scalable, secure, and future-ready payroll capabilities.
About the team:
The Payroll Modernization (PayMod) team leads the migration of the largest U.S. workforce to a scalable payroll system, managing complex programs with advanced project and stakeholder management. The team delivers efficient, reliable solutions aligned with evolving business needs through disciplined execution, risk mitigation, and process optimization. Collaborating across functions, members focus on continuous improvement and long-term operational excellence. Their expertise spans technical design, capacity planning, and cloud financial management, ensuring sustained system reliability and successful outcomes across multiple initiatives.
What you'll do:

• Leads end-to-end design, execution, and transformation of Walmart’s payroll ecosystem.
• Oversees payroll operations for ~1.6M associates across the U.S., Puerto Rico, and Canada.
• Ensures accuracy, compliance, and timeliness in a complex regulatory environment.
• Drives modernization from legacy INFOR mainframe systems to SAP and cloud-native architectures.
• Owns payroll system strategy, data integrity, compliance, and integrations with HR and financial systems.
• Directs cross-functional payroll, engineering, and product teams to align with business and technology strategy.

What you'll bring:

• Deep expertise in enterprise payroll systems (INFOR, SAP) and large-scale payroll processing.
• Strong software engineering leadership across scalable distributed systems and architecture.
• Advanced knowledge of payroll data structures, calculations, compliance, and multi‑jurisdictional regulations.
• Proven experience with high-volume payroll operations and complex scenarios (retro, terminations, garnishments).
• Skilled in payroll system integrations, data reconciliation, and GL/payroll accounting.
• Led major payroll modernization and cloud migration initiatives.
• Strong background in data governance, security, DevOps, CI/CD, and cloud platforms.
• Effective leader of global cross-functional teams with strong stakeholder management.

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 $130,000.00 - $260,000.00 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 6 years’ experience in software engineering or related area.
Option 2: 8 years’ experience in software engineering or related area.
3 years' supervisory experience.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 4 years' 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...2914 Se I St, Bentonville, AR 72712-3148, United States of AmericaWalmart 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.