
Staff Data Scientist – ML-Driven Audience Targeting, Experimentation
Walmart
full-time
Posted on:
Location Type: Office
Location: Bentonville • California • United States
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Salary
💰 $110,000 - $220,000 per year
Job Level
About the role
- Deliver ML-powered audience solutions that drive advertiser outcomes
- Design, build, and deploy high-impact propensity and lifetime value (LTV) models that meaningfully improve targeting effectiveness, ROAS, and campaign performance for top advertisers (e.g., P&G, PepsiCo)
- Own technical partnerships with strategic advertisers
- Act as the primary data science partner for large advertisers and measurement partners
- Scale models from concept to production
- Lead the end-to-end lifecycle of ML solutions — moving from POC to production
- Advance experimentation for onsite display media
- Design and analyze rigorous A/B tests to evaluate onsite display ad strategies
- Automate insights through GenAI-powered storytelling
- Influence executive decision-making through storytelling
Requirements
- Proven experience building ML models that drive real business impact
- 3+ years of hands-on, non-academic experience developing and deploying ML models end-to-end — particularly propensity and/or LTV models using tree-based methods (XGBoost, LightGBM)
- Strong experimentation and statistical judgment
- Deep expertise in A/B testing design and analysis, including power analysis, hypothesis testing, and advanced methods (bootstrapping or Bayesian approaches are a plus)
- Experience operationalizing analytics at scale
- Comfort turning analytical ideas into production-ready solutions using Python and SQL
- GenAI and automation mindset
- Demonstrated ability to leverage LLMs or GenAI tools to automate narrative generation, reporting, or presentation creation from data.
- Ability to bridge data science and executive storytelling
- A track record of communicating complex analytical results to senior business stakeholders in a clear, persuasive, and strategic way
- Retail media or AdTech exposure (strong plus)
- Familiarity with Retail Media Networks, AdTech platforms, or closed-loop measurement environments is highly valued
- Modern data & ML tooling experience
- Experience with GCP (BigQuery, Dataproc, Vertex AI preferred), and familiarity with engineering best practices such as CI/CD, Docker, PySpark, or scalable data pipelines
- Strong quantitative foundation
- A Master’s degree or PhD in Statistics, Economics, Computer Science, Mathematics, or a related field is preferred
Benefits
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Applicant Tracking System Keywords
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Hard Skills & Tools
machine learningpropensity modelslifetime value modelsA/B testingstatistical analysisPythonSQLXGBoostLightGBMdata automation
Soft Skills
storytellingcommunicationinfluencecollaborationanalytical thinkingstrategic thinkingproblem-solvingleadershipdecision-makingcreativity
Certifications
Master’s degreePhD in StatisticsPhD in EconomicsPhD in Computer SciencePhD in Mathematics