(USA) Senior, Software Engineer

Walmart • Sunnyvale, CA

3d • $117,000 - $234,000 • Onsite

About The Position

Join the team powering Walmart’s Checkout platform, where every millisecond and every transaction matters. As a Senior Backend Engineer, you will build and scale mission-critical payment orchestration services that support order submission, payment authorization, and the integration of new payment methods across millions of daily transactions.

Requirements

• 6+ years of backend engineering experience with strong hands-on expertise in Java and Spring Boot.
• Experience building transactional systems with strict reliability, consistency, and latency requirements.
• Solid understanding of REST API design, distributed systems patterns, and failure handling (timeouts, retries, circuit breakers).
• Experience with Cosmos DB or other NoSQL data stores in high-scale production environments.
• Strong DevOps mindset — comfortable with CI/CD pipelines, monitoring, logging, and production support.
• 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.
• OR 5 years’ experience in software engineering or related area.

Nice To Haves

• 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.
• Creating inclusive digital experiences, demonstrating knowledge in implementing Web Content Accessibility Guidelines (WCAG) 2.2 AA standards, assistive technologies, and integrating digital accessibility seamlessly.
• 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

• Design and build high-availability Java/Spring Boot microservices that power checkout payment flows.
• Implement and evolve payment orchestration logic, including order submission and authorization routing to downstream payment providers.
• Integrate and support new payment methods (wallets, BNPL, card types, etc.) in a scalable, extensible architecture.
• Develop and maintain REST APIs with strong emphasis on performance, idempotency, and resiliency.
• Own services end-to-end — deployment, monitoring, observability, and production issue resolution.

Benefits

• Incentive awards for performance
• 401(k) match
• Stock purchase plan
• Paid maternity and parental leave
• PTO
• Multiple health plans
• Competitive pay
• Performance-based bonus awards
• Medical coverage
• Vision coverage
• Dental coverage
• Financial benefits
• Stock
• Company-paid life insurance
• Paid time off benefits
• Family care leave
• Bereavement
• Jury duty
• Voting
• Short-term and long-term disability
• Company discounts
• Military Leave Pay
• Adoption and surrogacy expense reimbursement
• PTO and/or PPTO that can be used for vacation, sick leave, holidays, or other purposes.
• Walmart-paid education benefit program for full-time and part-time associates (Live Better U)
• Tuition, books, and fees are completely paid for by Walmart.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior