Senior, Software Engineer (Backend)

Walmart Global Tech; Sunnyvale (CA); On-site; USD 140,000 - 200,000; Full time

Job summary

Walmart Global Tech in Sunnyvale, CA is seeking a Senior Software Engineer to lead scalable, secure software solutions across services, APIs, and AI/ML components. You will drive the full software development lifecycle, collaborate with engineering teams, and deliver high-throughput systems that support millions of queries per second across billions of items.

You will work onsite at the Sunnyvale office, employing languages like Java and Rust, with technologies such as Kafka, Cassandra, caching,

Qualifications

• Experience delivering full software lifecycle, including design, implementation and testing.
• Proficient with CI/CD and automated testing practices.
• Experience integrating AI/ML components and leveraging modern toolchains.

Responsibilities

• Own feature delivery across teams with alignment to platform objectives.
• Write clean, scalable code across languages and manage CI/CD pipelines.
• Integrate AI/ML components to enhance software capabilities.
• Design scalable, secure, and maintainable systems with trade-off evaluation.
• Conduct code reviews and defect management to ensure quality.
• Collaborate with cross-functional teams to translate business needs into technical requirements.
• Monitor performance and drive observability and continuous improvement.

Skills

Java

Rust

Kafka

Cassandra

Kubernetes

CI/CD

AI/ML

Tools

Resilience4J

Job description

Position Summary...Walmart is seeking a Senior Software Engineer to lead the delivery of scalable, secure software solutions through collaborative engineering teams. This role involves managing the full software development lifecycle, including design, implementation, testing, and ongoing support of services, APIs, and AI/ML components. The successful candidate will apply strong technical judgment, drive continuous improvement, and engage with stakeholders to translate complex requirements into effective solutions. This position requires expertise in modern programming languages, DevOps practices, and a commitment to engineering excellence aligned with Walmart’s strategic objectives.

About Team: Item Read Orchestrator

Our team works closely with our US stores and eCommerce business to better serve customers by empowering team members, stores, and merchants with technological innovation. From groceries and entertainment to sporting goods and crafts, Walmart U.S. offers an extensive selection that our customers value, whether they shop online at Walmart.com, through one of our mobile apps, or in-store. Focus areas include customers, stores and employees, in-store service, merchant tools, merchant data science, and search and personalization. The Walmart Item Orchestrator team is seeking a Senior Software Engineer to join our dynamic and talented group. You'll collaborate with passionate engineers to deliver a top-tier site experience that scales to handle millions of queries per second across billions of items. As a team, we innovate and build features on technologies such as Java, Rust, reactive programming, Kafka, Cassandra, caching, Resilience4J, and Kubernetes. Our focus is on delivering high-throughput, low-latency systems where every millisecond matters.

What you'll do...Immigration sponsorship is not available for this role. Applicants must be authorized to work for any employer in the United States without current or future visa sponsorship. This is a full-time, onsite role at our Sunnyvale, CA office. This position is not eligible for remote work.

What you'll do:

• Own scoped feature and model delivery through collaborative engineering teams, ensuring alignment with platform and system objectives.
• Write clean, efficient, and reliable code across multiple languages, driving full software development lifecycle including CI/CD and automated testing.
• Integrate AI and ML components to enhance software intelligence and development innovation.
• Participate in solution design, evaluating trade-offs and ensuring scalable, secure, and maintainable systems.
• Conduct code reviews, debugging, and defect management to maintain high-quality deliverables.
• Collaborate cross-functionally to translate business needs into technical requirements and measurable outcomes.
• Monitor application performance and support continuous improvement through proactive testing and observability.

What you'll bring:

• Proven expertise in object-oriented programming and documentation-based coding practices.
• Strong experience delivering scoped features and managing full software development lifecycle including CI/CD and automated testing.
• Proficiency in debugging, code review, and continuous development methodologies.
• Ability to design scalable, secure, and maintainable software solutions aligned with platform and business objectives.
• Experience integrating AI/ML components and leveraging generative AI tools to enhance development efficiency.
• Demonstrated technical judgment with sound decision-making and adaptability to evolving technologies.
• Effective collaboration skills with cross-functional teams and commitment to engineering excellence.

About Walmart Global Tech

Imagine working in an environment where one line of code can make life easier for hundreds of millions of people. That’s what we do at Walmart Global Tech. We’re a team of software engineers, data scientists, cybersecurity expert's 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. We are 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.

Walmart’s culture is a competitive advantage, and it’s fostered by being together. Working together in person allows us to collaborate, align quickly and innovate with greater