Staff, Data Scientist

Walmart Walmart · Retail · Sunnyvale, CA

Staff Data Scientist role focused on product analytics for Walmart's discovery and browse pages. The role involves defining success metrics, designing and evaluating large-scale experiments (A/B tests), analyzing customer behavior using clickstream data, and influencing product strategy. While familiarity with ML concepts is mentioned, the core of the role is product analytics and experimentation, not direct ML model building or research.

What you'd actually do

  1. Partner with Product Managers, Engineers, Data Scientists, and UX teams to define success metrics, measurement strategies, and opportunity assessments for product feature enhancements and recommendation algorithms.
  2. Translate ambiguous business or product questions into structured analytical approaches that influence prioritization and product direction.
  3. Design and evaluate large-scale A/B tests and advanced experimentation methods (e.g., quasi-experimental approaches, causal inference).
  4. Ensure experiment integrity through appropriate power analysis, guardrail metrics, and thoughtful statistical methodologies.
  5. Use expert-level SQL to analyze large-scale datasets across platforms such as BigQuery, Hive, and Spark to uncover user behavior insights to use for model building and ad-hoc analysis

Skills

Required

  • SQL
  • Python
  • PySpark
  • A/B testing
  • customer behavior analysis
  • experimentation design
  • statistical methodologies

Nice to have

  • ML concepts
  • data mining
  • feature-level diagnostics
  • prompt engineering
  • LLMs
  • workflow automation

What the JD emphasized

  • recommendation algorithms
  • large-scale A/B tests
  • customer behavior