Principal, Data Scientist - Causal Inference & Experimentation

Position Summary...

About Walmart Business
Walmart Business is a rapidly growing omnichannel platform designed to serve businesses, nonprofits, and government agencies at scale. By combining Walmart’s unmatched assets with purpose-built B2B experiences, we are redefining how organizations purchase and operate.
This is a unique opportunity to shape foundational decision-making in a high-growth business while leveraging the scale and complexity of the world’s largest omnichannel retailer.

What you'll do...

As a Principal Data Scientist, you will serve as a technical authority in causal inference, experimentation, and decision science, influencing strategy across Product, Business, and Executive leadership.

• Define and lead the causal measurement strategy for major product, pricing, and operational initiatives, ensuring decisions are grounded in robust causal evidence rather than correlation.
• Design and evaluate large-scale experimentation frameworks, including A/B testing, sequential experimentation, and quasi-experimental designs, to measure true business impact.
• Develop and apply advanced causal and statistical models, such as:
  • Treatment effect and uplift models
  • Difference-in-differences and synthetic controls
  • Propensity score and matching methods
  • Instrumental variables and observational causal techniques
• Translate complex causal findings into executive-ready insights, clearly communicating assumptions, limitations, uncertainty, and business implications.
• Partner directly with senior business and product leaders to frame ambiguous, high-stakes problems, define learning agendas, and determine the right analytical or experimental approach.
• Connect leading indicators to lagging outcomes, demonstrating how specific product and operational levers causally impact revenue, conversion, retention, and customer experience.
• Influence roadmap and investment decisions by identifying high-ROI opportunities and quantifying trade-offs through experimentation and modeling.
• Set technical standards and best practices for experimentation and causal analysis, mentoring senior data scientists and raising the overall analytical maturity of the organization.

What You’ll Bring

• Deep expertise in causal inference and experimentation, with a strong track record of applying these methods to real-world business decisions.
• Advanced modeling and statistical skills, including causal modeling, experimental design, and large-scale observational analysis.
• Strong technical proficiency in SQL, Python, and/or R, with experience working on complex, high-volume data systems.
• Strategic and systems thinking, with the ability to connect business objectives, product strategy, and analytical methods end-to-end.
• Executive influence without authority, able to shape decisions through rigor, clarity, and credibility rather than formal management responsibility.
• 10+ years of experience in data science, applied research, or advanced analytics roles, operating at principal or staff-level scope.
• Retail, eCommerce, or marketplace experience is a plus, including pricing, supply chain, merchandising, or digital platforms.

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.
The annual salary range for this position is $110,000.00 - $220,000.00 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: Bachelors degree in Statistics, Economics, Analytics, Mathematics, Computer Science, Information Technology or related field and 5 years' experience in an analytics related field. Option 2: Masters degree in Statistics, Economics, Analytics, Mathematics, Computer Science, Information Technology or related field and 3 years' experience in an analytics related field. Option 3: 7 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, PhD in Machine Learning, Computer Science, Information Technology, Operations Research, Statistics, Applied Mathematics, Econometrics, Publications or active peer reviewer in related journals or conference, 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...

702 Sw 8Th St, Bentonville, AR 72716, 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.