Walmart

(USA) Principal, Data Scientist

Walmart$143K — $286K *
Information Technology
5 - 7 years of experience
Job Overview by Ladders

Qualifications

  • 5+ years in machine learning, deep learning, and advanced statistical analysis, ideally in marketing or e-commerce.
  • Proficiency in Python and SQL for coding and automation.
  • Strong knowledge of MLOps for model lifecycle management.
  • Expertise in data assessment, feature engineering, and experimentation methodologies.
  • Ability to convert complex problems into actionable insights through analysis.
  • Experience with cloud platforms for deploying models.
  • Proven leadership skills to mentor and guide data science teams.

Responsibilities

  • Lead development and deployment of machine learning and statistical solutions for marketing.
  • Define data science strategies that align with business goals.
  • Design rigorous experiments and causal measurement frameworks.
  • Architect platforms for experimentation, audience assignment, and reporting.
  • Build predictive models to enhance marketing performance and customer engagement.
  • Analyze vast datasets to uncover insights and opportunities.
  • Create reusable modeling frameworks and establish standards for model lifecycle.

Benefits

  • Comprehensive medical, vision, and dental insurance.
  • 401(k) plan and company-paid life insurance.
  • Paid time off including leave for parental and family care.
  • Short-term and long-term disability coverage.
  • Education benefits covering tuition and fees for associates.
  • Company discounts and military leave pay.
Full Job Description
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 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-11657: The annual salary range for this position is $143,000.00 - $286,000.00

Bentonville, Arkansas US-09158: 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








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...

1345 Crossman Ave, Sunnyvale, CA 94089-1114, United States of America

About Walmart

WalmartLabs is accelerating their development to redefine the shopping experience to meet the changing needs of our customers wherever they are —in a store, on our website, or on their mobile device.

Walmart Careers

Joining Walmart means becoming part of a world-renowned team that leads with innovation and is committed to creating impact. As the largest retailer globally, Walmart offers unparalleled job opportunities and career growth in an environment that values diversity and leadership. Work You’ll Do At Walmart, you will be part of a dynamic team that drives our mission to help people save money so they can live better. Engage in work that matters with a company that offers both stability and the flexibility to explore different career paths. Transform the retail landscape with your skills and help shape the future of millions of customers worldwide. Walmart is at the forefront of combining retail with advanced technology, making it an exciting place for professional growth and innovation. Lead with Us Step into a role that harnesses your potential and places you at the intersection of retail and technology. Walmart is not just a company; it's a community where you can develop your leadership skills and contribute to a culture that nurtures professional growth. Work with a diverse team of experts who bring a wealth of knowledge and experience to the table. Our commitment to diversity training ensures that all team members are valued and can thrive. Walmart Careers and Employment Opportunities We are continuously expanding our team to include enthusiastic professionals eager to drive change and make a significant impact. Explore a range of positions from entry-level to executive, each offering competitive benefits and the opportunity to advance. Innovate with Us Join Walmart and be part of a team that is dedicated to innovation and excellence. With over 2.3 million associates worldwide, you are joining the largest private employment group, ready to innovate, lead, and impact the global market. Internship Programs Kickstart your career with a Walmart internship. Gain invaluable experience, build your resume, and develop networking connections that will empower your career journey. Our internships provide a platform to apply your academic knowledge in real-world scenarios, preparing you for future employment. Be Part of a Great Team At Walmart, our team is our strength. We invest in our employees through robust training programs, leadership development, and opportunities for career advancement. Enjoy the benefits of working in a supportive and inclusive environment where every member’s contribution is valued. Future-Proof Your Career Your journey at Walmart can be as vast as your ambitions. With endless opportunities to grow, learn, and lead, you can take your professional experience to new heights. Benefit from our comprehensive training programs and develop the skills needed for tomorrow’s challenges. Stay Connected Join Our Team Search open positions that match your skills and interests. We are looking for passionate, curious, creative, and solution-driven team players. Explore the diverse job opportunities at Walmart and find where you can make a difference. Keep Up to Date Stay ahead with career tips, insider perspectives, and industry-leading insights you can put to use today—all from the people who work here. READ CAREERS BLOG Job Alert Emails Personalize your subscription to receive job alerts, latest news, and insider tips tailored to your preferences. Discover the exciting and rewarding opportunities that await at Walmart. SEARCH WALMART JOBS Join Walmart today and be part of a story of growth, innovation, and leadership.
Learn more about Walmart
Size
2,300 employees
Market Cap
$387 billion
Industry
Net Income
$13.5 billion
Founded
1962
5 Year Trend
+3.3%
Revenue
$559.1 billion
NASDAQ

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