Senior Data Scientist

Walmart

Senior Data Scientist building production-scale AI for Walmart’s retail search and personalization experiences. Designing machine learning, ranking, recommendation, and generative AI solutions for millions of shoppers.

Posted 8/14/2026full-timeSunnyvale • California • 🇺🇸 United StatesSenior💰 $117,000 - $234,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

Use this summary to align your resume positioning with the role.

Demonstrates expertise in designing and deploying machine learning models, particularly in Search, Ranking, Recommendations, and Personalization. Proficient in applying deep learning, NLP, and Generative AI techniques while leading complex technical initiatives and mentoring junior data scientists.

Highest-signal resume keywords

Machine Learning SystemsDeep LearningNatural Language ProcessingPython ProgrammingModel Optimization

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Machine LearningSupervised LearningFeature EngineeringModel OptimizationA/B TestingData AnalysisStatistical ModelingExperiment DesignProduction MonitoringScalability Optimization

Soft Skills

MentoringCollaborationCommunication

Tools & Technologies

SQLCloud-Based ML PlatformsMLOpsDistributed Data Processing

Industry Keywords

SearchRecommendation SystemsPersonalizationAnalyticsData Science

Tech Stack

Tools & technologies

CloudPythonSQL

About the role

Key responsibilities & impact

Design and deploy machine learning models for Search, Ranking, Recommendations, and Personalization
Apply deep learning, NLP, and Generative AI techniques to improve customer discovery
Lead experimentation using offline metrics and online A/B testing
Optimize model performance, scalability, and inference efficiency
Collaborate with Product Managers, Engineers, and Applied Scientists to define AI roadmaps
Mentor junior data scientists and contribute to engineering and modeling best practices
Drive production monitoring and continuous model improvements
Communicate technical recommendations to leadership and business stakeholders
Independently drive complex modeling initiatives and deliver production-scale AI solutions

Requirements

What you’ll need

Bachelor’s degree in Statistics, Economics, Analytics, Mathematics, Computer Science, Information Technology, or related field and 3 years' experience in an analytics related field; or master’s degree and 1 year of experience; or 5 years' experience in an analytics or related field
Strong experience building production machine learning systems
Expertise in supervised learning, deep learning, feature engineering, and model optimization
Experience with Search, Recommendation Systems, Personalization, NLP, or Ranking preferred
Strong Python, SQL, and distributed data processing experience
Familiarity with cloud-based ML platforms and MLOps
Experience designing experiments and interpreting business impact
Ability to independently lead complex technical initiatives

Benefits

Comp & perks

Competitive pay
Performance-based bonus awards
Medical, vision, and dental coverage
401(k)
Stock purchase
Company-paid life insurance
Paid time off (including sick leave)
Parental leave
Family care leave
Bereavement leave
Jury duty leave
Voting leave
Short-term disability
Long-term disability
Company discounts
Military Leave Pay
Adoption and surrogacy expense reimbursement
PTO and/or PPTO for vacation, sick leave, holidays, or other purposes
Live Better U Walmart-paid education benefit program
Fully paid tuition, books, and fees for eligible education programs