(USA) Senior, Data Scientist

Position Summary...

What you'll do...

Role summary:
The Senior Data Scientist will leverage advanced machine learning and optimization algorithms to develop and deploy data-driven solutions that support strategic business objectives for Finance. This role involves sourcing and validating data, designing predictive models, and ensuring scalable model deployment. The position requires proficiency in programming, statistical analysis, machine learning and data visualization to translate complex data into actionable insights. Collaborating with cross-functional teams, the Senior Data Scientist will guide technical problem-solving, mentor associates, and contribute to continuous improvement initiatives that enhance business performance and operational efficiency.
About the team:
The Data Science team within Finance Tech of Corporate Tech & Services at Walmart Global Tech leverages advanced machine learning, statistics, and optimization to solve key business challenges. Focused on transforming finance and accounting operations, the team develops applied ML/AI solutions, automation, and intelligent workflows that enhance efficiency, reduce risk, and minimize manual tasks. The platform integrates multiple capabilities into a unified accounting system. Committed to continuous learning and innovation, the team employs cutting-edge technologies and best practices to improve model development, deployment, and scalability, delivering impactful results that support Walmart’s strategic goals.
What you'll do:

• Identify and source relevant business data from multiple databases and distributed systems ensuring high data quality.
• Build, train, evaluate and deploy models on large-scale retail data.
• Design, Develop and evaluate agentic systems for optimizing finance operations.
• Build Retrieval-Augmented Generation (RAG) pipelines, agents, and optimized agentic routing.
• Perform  prompt engineering, context management, token cost optimization, and output evaluation to improve AI solution reliability. 
• Communicate technical decisions, trade-offs, and experiment results to both technical and non-technical stakeholders, driving understanding and adoption of ML-driven solutions.
• Mentor junior associates in data science methodologies and best practices.

What you'll bring:

• Deep knowledge of machine learning, optimization and data analysis techniques.
• Proficient in Python, SQL, and AI/ML frameworks, with demonstrated ability to build scalable, end-to-end AI / ML pipelines.
• Experience with deep learning modeling and libraries such as PyTorch and TensorFlow.
• Experience with prototyping and deploying algorithms using large-scale production data.
• Expertise in data quality assessment, model validation, and deployment in production environments.
• Excellent communication and collaboration skills.

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 https://one.walmart.com/notices. 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.
Sunnyvale, California US-11789: The annual salary range for this position is $117,000.00 - $234,000.00
BENTONVILLE, Arkansas US-10929: The annual salary range for this position is $90,000.00 - $180,000.00 Additional compensation includes annual or quarterly performance bonuses. Additional compensation for certain positions may also include :
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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...

809 11th 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.