Senior Software Engineer
Walmart
About the role
What you'll do...
Position: Senior Software Engineer
Job Location: 1375 Crossman Avenue, Sunnyvale, CA 94089
Duties: Apply data science and advanced algorithms to enhance search and browse functionalities for Walmart International. Develop train and evaluate machine learning models for recommendation systems and search relevance. Develop system to collect, preprocess and analyze real time click stream data. Collaborate with data scientists to fine-tune models, propose optimizations, and conduct A/B testing. Engineer scalable, low latency microservices for hosting and serving machine learning models in real-time. Optimize data pipelines for efficient data ingestion, transformation, and normalization to support batch and streaming processes.
Minimum education and experience required: Master's degree or equivalent in Computer Science, Computer Engineering, Computer Information Systems, Software Engineering, or related area and 1 year of experience in software engineering or related area; OR Bachelor's degree or equivalent in Computer Science, Computer Engineering, Computer Information Systems, Software Engineering, or related area and 3 years of experience in software engineering or related area.
Skills required: Experience designing and developing REST API web services for hosting mL models. Experience designing, implementing, and validating large scale A/B tests for new features. Experience designing and developing statistical models for query correction, exploration - exploitation and regression analysis. Experience developing big data pipelines to gather, aggregate and interpret data from website. Experience establishing and managing databases for storing signal values computed from backend data pipelines. Experience designing and implementing automated systems for training, testing and deploying machine learning models. Experience developing machine learning models to enhance product ranking and recommendation systems. Experience maintaining, monitoring, and alerting pipelines for production systems. Experience utilizing SQL, Hive, and Spark for coding scripts to interact with databases and big data storage systems. Employer will accept any amount of graduate coursework, graduate research experience or professional experience with the required skills.
Salary Range: $168,917/year to $234,000/year. Additional compensation includes annual or quarterly performance incentives.
Benefits: At Walmart, we offer competitive pay as well as performance-based incentive awards and other great benefits for a happier mind, body, and wallet. 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, education assistance with 100% company paid college degrees, company discounts, military service pay, adoption expense reimbursement, and more.
Eligibility requirements apply to some benefits and may depend on your job classification and length of employment. Benefits are subject to change and may be subject to a specific plan or program terms. For information about benefits and eligibility, see One.Walmart.com.
Wal-Mart is an Equal Opportunity Employer.
#LI-DNI #LI-DNP
Walmart and its subsidiaries are committed to maintaining a drug-free workplace and has a no tolerance policy regarding the use of illegal drugs and alcohol on the job. This policy applies to all employees and aims to create a safe and productive work environment.
Responsibilities
- Develop machine learning models for recommendations and search relevance.
- Build systems to collect, preprocess, and analyze real-time clickstream data.
- Collaborate with data scientists to optimize models and conduct A/B testing.
- Engineer scalable, low-latency microservices for serving machine learning models.
- Optimize batch and streaming data pipelines.
Qualifications
- Master's degree in a related field and 1 year of software engineering experience, or a bachelor's degree and 3 years of experience.
- Experience building REST APIs for hosting machine learning models.
- Experience designing and validating large-scale A/B tests and statistical models.
- Experience developing big data pipelines and managing databases for backend signals.
- Experience building, deploying, monitoring, and maintaining machine learning systems.
- Experience with SQL, Hive, and Spark.
Benefits
- Medical, vision, and dental coverage
- 401(k), stock purchase plan, and company-paid life insurance
- Paid time off, sick leave, parental leave, and family care leave
- Short- and long-term disability
- Education assistance and company discounts
- Performance-based incentives
Skills mentioned
About Walmart
More than 60 years ago, Sam Walton opened the first Walmart in Rogers, Arkansas. Today, we’re a people-led, tech-powered omnichannel retailer dedicated to helping people save money and live better all around the world. Our 2.1 million associates are the engine behind what we do — serving customers and members in communities spanning 19 countries, in stores and clubs, online and through a supply chain built for speed and scale. We’re committed to creating clear pathways for associates to learn, grow and advance. Whether you’re starting your first job or bringing years of experience, you’ll find room to grow, learn new skills and build a career with purpose. We’re proud to invest in our people and foster a culture grounded in respect, integrity, service and striving for excellence. Recognized as a Fortune 100 Best Companies to Work For® (2025) and Great Place To Work®-Certified™ , we’re proud of what we’re building together.