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Walmart Canada · 3 weeks ago

Principal, Data Scientist - Causal Inference & Experimentation

Bentonville, AR

Full-time

Onsite

Lead/Staff

10+ years exp

Walmart Inc. is a leading omnichannel retailer, and they are seeking a Principal Data Scientist to influence strategy across Product, Business, and Executive leadership. The role involves defining causal measurement strategies, designing experimentation frameworks, and translating complex findings into actionable insights for business impact.

DeliveryRetailShopping

Responsibilities

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

Qualification

Causal inferenceExperimentation frameworksStatistical modelingSQLPythonRExecutive influenceRetail experienceECommerce experienceStrategic thinking

Required

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

Preferred

Retail, eCommerce, or marketplace experience is a plus, including pricing, supply chain, merchandising, or digital platforms

Benefits

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.

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.