(USA) Senior, Software Engineer - Unified Payments Platform

Wal-Mart • Bentonville, AR

42d • $90,000 - $180,000

About The Position

The Unified Payments team is building a next-generation platform to handle all payment processing across Walmart's physical and digital channels. The platform is being re-architected from a legacy mainframe to a modern, cloud-native solution. Senior Software Engineer, you'll play a critical role in designing, developing, and delivering scalable solutions for Walmart's Unified Payments Platform. You'll work closely with Staff Engineers and cross-functional teams to build cloud-native systems that power billions of transactions. You'll also begin to explore and apply AI technologies, including Large Language Models (LLMs) and agentic tools, to enhance system intelligence and developer productivity.

Requirements

• 5-8 years of experience in software engineering, with a focus on backend systems.
• Proficiency in Java, Spring Boot, and microservices architecture.
• Experience with Kubernetes, Helm, and cloud platforms (GCP preferred).
• Strong understanding of CI/CD, observability, and DevOps practices.
• Excellent problem-solving and communication skills.
• 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.
• 5 years' experience in software engineering or related area.

Nice To Haves

• Exposure to LLMs, prompt engineering, or AI/ML tools is a plus.
• Familiarity with agentic frameworks (e.g., LangChain, CrewAI) is a bonus.
• Experience modernizing legacy systems or working on payment platforms.
• Contributions to internal tools or AI-driven developer productivity initiatives.
• Passion for mentoring and growing as a technical leader.
• 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.

Responsibilities

• Translate complex business requirements into scalable, maintainable software solutions.
• Design and implement microservices using Java, Spring Boot, and Kubernetes in a cloud-native environment.
• Collaborate with Staff Engineers and Architects to align on technical direction and best practices.
• Contribute to the integration of LLMs and AI agents into internal tools and services to improve automation and decision-making.
• Participate in code reviews, design discussions, and mentoring of junior engineers.
• Troubleshoot production issues, perform root cause analysis, and implement long-term fixes.
• Continuously improve system performance, observability, and reliability.

Benefits

• Beyond our great compensation package, you can receive incentive awards for your performance.
• Other great perks include 401(k) match, stock purchase plan, paid maternity and parental leave, PTO, multiple health plans, and much more.
• 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.
• 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.

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level
• Industry: General Merchandise Retailers
• Number of Employees: 5,001-10,000 employees