USA) Principal, Data Scientist

Position: (USA) Principal, Data Scientist
Position Summary...

What you'll do...

Role summary:

The Principal Data Scientist will lead advanced data science initiatives by developing and deploying innovative machine learning models and data-driven solutions that address complex business challenges. This role requires expertise in statistical analysis, coding, experimentation and data strategy to translate business needs into actionable insights. The position involves mentoring team members, collaborating cross-functionally, and ensuring the scalability and sustainability of models.

The successful candidate will drive measurable business impact through rigorous experimentation, model validation, and effective communication of findings to influence strategic decisions across multiple domains.

About the team:

Join the personalization marketing data science team at Walmart, collaborating with engineering, business, and product teams across digital marketing channels such as SEM, SEO, CRM, Display, and Paid Social. The team develops scalable, data-driven solutions to optimize marketing effectiveness and generate high-quality demand efficiently. Members analyze extensive omni-channel commerce data to build models and algorithms supporting business growth. Working alongside skilled data scientists, engineers, marketers, and product managers, the team creates advanced marketing science platforms that enhance strategies and deliver actionable insights across the organization.

What you'll do:

* Lead the development and deployment of advanced AI, machine learning, and statistical solutions for marketing science and personalization.

* Define scalable data science strategies aligned with business objectives.

* Design rigorous experiments, causal measurement frameworks, and incrementality analyses.

* Architect experimentation platforms supporting audience assignment, metrics, analysis, and reporting.

* Build predictive and personalization models to improve customer engagement and marketing performance.

* Analyze large datasets to identify insights and high-impact opportunities.

* Establish reusable modeling frameworks, feature pipelines, and model lifecycle standards.

* Partner with cross-functional stakeholders and mentor data scientists on methodology, coding, experimentation, and communication best practices.

What you'll bring:

* 5+ year experience in machine learning, deep learning, and advanced statistical analysis to develop and deploy predictive models, preferably in marketing science or ecommerce

* Proficiency in programming languages including Python and SQL for code development, testing, and automation.

* Strong knowledge of MLOps practices to ensure model lifecycle management and scalability in production environments.

* Expertise in data quality assessment, feature engineering, and experimentation to drive data-driven solutions.

* Ability to translate complex business problems into analytical models and actionable insights.

* Experience with cloud platforms for model deployment and management.

* Proven leadership skills to mentor teams and guide technical problem formulation and solution delivery.

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…