Position Summary...What you'll do...We are seeking a Senior Data Scientist to join our science team and lead the development of state-of-the-art modelsthat power Product Search across Walmart's multiple international markets. Our mission is to provide our customers with the most delightful user experience throughout their online shopping journey with us. As a senior member of the team, you will create powerful, scalable AI and ML-powered solutions for highly intricate real-world problems. You will be working on these industry-defining problems, driving innovation and setting the technical vision to push the frontiers of Search by advancing areas including AI, ML, NLP, Optimization, and large-scale system architecture.
What you will do:
- Lead and collaborate with data scientists, engineers, and product managers to architect, design, train, and deploy end-to-end machine learning solutions.
- Own and drive complex projects with a high degree of ambiguity, translating broad business and product requirements into a clear technical roadmap and concrete ML deliverables.
- Architect and implement robust, scalable modeling solutions for novel problems that may have limited or no precedent, demonstrating thought leadership and originality.
- Design and champion rigorous offline and online (A/B) testing methodologies, and communicate results and strategic recommendations to executive-level stakeholders and non-technical audiences.
- Pioneer the application of bleeding-edge academic research and industry practices, setting the technical direction for the team and mentoring junior scientists on new techniques.
- Own the long-term health and performance of production models, driving the strategy for continuous improvement, scalability, and efficiency within a large-scale distributed infrastructure.
- Act as a thought leader by publishing research in top-tier internal and external conferences and journals, filing patent applications, and representing the team in technical forums.
What you will bring:
- MS with 5+ years or PhD with 3+ years of relevant industry experience in a quantitative field (e.g., Computer Science, Machine Learning, Operations Research, Statistics, Engineering).
- Expert-level understanding and a proven track record in applying NLP, Machine Learning, Deep Learning, and advanced algorithms to solve real-world problems.
- Extensive, hands-on experience in Search, Information Retrieval, and/or Recommendation Systems. Deep familiarity with Generative AI and Large Language Models (LLMs) is highly desirable.
- Mastery of Python and SQL, with expert proficiency in ML libraries (e.g., PyTorch, TensorFlow, Scikit-learn) and big data ecosystems (e.g., PySpark, Hadoop, Hive) in a cloud environment (Google Cloud Platform, Azure, or AWS).
- A strong track record of publications in peer-reviewed conferences and journals (e.g., NeurIPS, ICML, KDD, SIGIR, WSDM, RecSys) is a significant plus.
- Demonstrated ability to mentor junior data scientists and lead complex technical projects.
At Walmart, we offer competitive pay as well as performance-based bonus 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, company discounts, Military Leave Pay, adoption and surrogacy expense reimbursement, and more.
You will also receive PTO and/or PPTO that can be used for vacation, sick leave, holidays, or other purposes. The amount you receive depends on your job classification and length of employment. It will meet or exceed the requirements of paid sick leave laws, where applicable.
For information about PTO, see
Live Better U is a Walmart-paid education benefit program 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.
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.
The annual salary range for this position is $117,000.00 - $234,000.00
Additional compensation includes annual or quarterly performance bonuses.
Additional compensation for certain positions may also include :
- Stock
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Minimum Qualifications...Outlined below are the required minimum qualifications for this position. If none are listed, there are no minimum qualifications.
Option 1- Bachelor's degree in Statistics, Economics, Analytics, Mathematics, Computer Science, Information Technology, or related field and 3 years' experience in an analytics related field. Option 2- Master's degree in Statistics, Economics, Analytics, Mathematics, Computer Science, Information Technology, or related field and 1 years' experience in an analytics related field. Option 3 - 5 years' experience in an analytics or related field.
Preferred Qualifications...Outlined below are the optional preferred qualifications for this position. If none are listed, there are no preferred qualifications.
Data science, machine learning, optimization models, Master's degree in Machine Learning, Computer Science, Information Technology, Operations Research, Statistics, Applied Mathematics, Econometrics, Successful completion of one or more assessments in Python, Spark, Scala, or R, Using open source frameworks (for example, scikit learn, tensorflow, torch), We value candidates with a background in creating inclusive digital experiences, demonstrating knowledge in implementing Web Content Accessibility Guidelines (WCAG) 2.2 AA standards, assistive technologies, and integrating digital accessibility seamlessly. The ideal candidate would have 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.
Primary Location...815 Eleventh Ave, Sunnyvale, CA 94089-4731, United States of America
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.
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