Software Engineer

Staff Software Engineer

The Search team at Walmart processes billions of queries across millions of products on our global websites and apps. Whether a customer is searching for a specific item or browsing through categories, our platform powers the intelligence behind product discovery. We leverage structured and semi-structured data at massive scale - drawing from catalogs, transaction logs, social data, and more. By combining cutting-edge information retrieval, machine learning, and ranking algorithms, we build low-latency, high-availability systems that directly impact customer experience and business metrics.

As a Staff Software Engineer, you'll lead the design and development of scalable, high-performance backend systems that power our Search Ranking platform. This role offers a unique opportunity to combine deep backend expertise with ML engineering to drive product discovery at scale.

• Design, build, and maintain low-latency, scalable backend services for search ranking.
• Lead end-to-end delivery of core platform features and infrastructure improvements.
• Collaborate with cross-functional teams including Data Science, Product, and Search Ops.
• Build robust infrastructure for model deployment, monitoring, and runtime performance.
• Provide technical leadership and mentorship across engineering teams.
• Drive system design, code quality, and operational excellence.

Bachelor's degree in computer science and 6 years of experience or master's degree in computer science and 4 years of experience with building scalable, highly distributed, high performing, and robust Java applications

• Strong foundation in system design, data structures, and distributed systems.
• Hands-on experience with the Spring framework and building scalable web applications.
• Proficiency in Python, with experience deploying and optimizing ML model inference pipelines in production.
• Familiarity with ML model serving frameworks (e.g., TensorFlow Serving, TorchServe).
• Experience with search technologies (e.g., Solr, Lucene).
• Experience working with cloud platforms (Azure, GCP, or similar).
• Proficiency CI/CD tools (e.g., Jenkins, Maven) and version control systems (e.g., Git).
• Strong skills in debugging, performance tuning, and supporting production systems.
• Excellent communication, collaboration, and leadership abilities.

Experience in the search domain highly desirable.

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 experts, and service professionals within the world's leading retailer who make an epic impact and are at the forefront of the next retail disruption.

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 speed. We use our campuses to create purposeful connection rooted in deepening understanding and investing in the development of our associates.

Our hubs: Walmart is a global company with offices across the United States and around the world. Our global headquarters is in Bentonville, Arkansas, with primary hubs in the San Francisco Bay area and New York/New Jersey.

Benefits include 401(k) match, stock purchase plan, paid maternity and parental leave, PTO, multiple health plans, and much more. Walmart, Inc. is an Equal Opportunity Employer By Choice. We believe we are best equipped to help our associates, customers, and the communities we serve live better when we really know them. That means understanding, respecting, and valuing unique styles, experiences, identities, ideas, and opinions while being inclusive of all people.

The above information has been designed to indicate the general nature and level of work performed in the role. It is not designed to contain or be interpreted as a comprehensive inventory of all responsibilities and qualifications required of employees assigned to this job. The full Job Description can be made available as part of the hiring process.