Staff, Software Engineer - Backend

Walmart•Sunnyvale, CA

1d•$143,000 - $286,000•Onsite

About The Position

We are seeking a talented and passionate Staff Software Engineer to join our Marketplace Engineering team. In this role, you will play a pivotal role in shaping the architecture, scalability, and reliability of Walmart's core platforms and services. You'll partner with cross-functional teams to deliver robust, high-performing systems that power Walmart's third-party seller ecosystem. This role is part of the Walmart Marketplace Payments organization. Our team builds platforms and experiences that power how sellers and partners get paid. We drive high-impact portfolios including Capital, Faster Payout, Critical Payout Services, Risk Management, Agentic AI-powered workflows, and the expansion of payment services across international markets. As these areas continue to grow in scale and complexity, we are looking for a Staff Software Engineer to provide technical leadership, architectural direction, and mentorship that will enable us to deliver with quality, resilience, and speed. Immigration Sponsorship support will NOT be available for this position.

Requirements

At least 6 years of professional software development experience with expertise in backend systems and a proven track record of leading architecture for distributed platforms.
Deep proficiency in Java (JDK 21), Spring Boot, Kafka, Cassandra, and large-scale data processing frameworks such as Spark and Airflow.
Strong background in designing multi-tenant cloud-native systems across Azure, GCP, or private cloud environments with an emphasis on scalability, performance, reliability, and resiliency.
Experience designing or integrating AI-powered applications, LLM-based workflows, or Agentic AI solutions into enterprise platforms to solve real business problems.
Ownership-driven and passionate about technology with curiosity to evaluate and adopt emerging technologies where they create measurable business value.
Excellent communication skills with the ability to influence, align, and partner with engineers, product managers, and stakeholders across global teams.
Experience mentoring engineers, setting technical direction, and raising the bar for engineering excellence.
Bachelor'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.
OR 6 years’ experience in software engineering or related area.

Nice To Haves

Experience building or contributing to payments, financial services, lending, fintech, marketplace, or international payment platforms is a strong plus.
Adept at breaking down complex problems into actionable solutions while balancing trade-offs across performance, cost, reliability, and delivery speed.
Master’s degree in Computer Science, Computer Engineering, Computer Information Systems, Software Engineering, or related area and 2 years' experience in software engineering or related area.
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 joining us as we continue to create accessible products and services following Walmart’s accessibility standards and guidelines for supporting an inclusive culture.

Responsibilities

Lead the design of distributed, fault-tolerant backend systems using Java (JDK 21), Spring Boot, and event-driven architectures.
Drive both high-level and low-level design discussions in collaboration with architects and senior engineers.
Build and deliver highly scalable services and data pipelines leveraging Kafka, Cassandra, Spark, and Airflow.
Write clean, performant, and maintainable code while establishing engineering best practices.
Build and deliver highly scalable microservices and cloud-native applications across Azure, GCP, and private cloud environments with a strong focus on disaster recovery (DR) readiness.
Lead the architecture and development of platform capabilities supporting Marketplace Capital products including lending, cashback eligibility, financial decisioning, and related platform services.
Design and implement intelligent Agentic AI-powered workflows that improve engineering productivity, automate operational processes, enhance business decision-making, and deliver scalable AI-driven capabilities across the Marketplace Payments platform.
Design and build scalable payment platform capabilities that support Walmart's continued expansion across international markets while ensuring high availability, regulatory compliance, and operational excellence.
Ensure systems are resilient and reliable through strong CI/CD practices, observability including monitoring and alerting, and disaster recovery strategies.
Guide, mentor, and elevate engineers at multiple levels.
Foster a culture of technical rigor, ownership, and continuous learning.
Work with teams across geographies to define and deliver solutions aligned with business needs, marketplace growth, and platform scale.
Build tools, frameworks, and reusable platform capabilities that accelerate developer productivity and reduce operational overhead.

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
Company-paid life insurance
Family care leave
Bereavement
Jury duty
Voting leave
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 (Live better U) 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.