(usa) Senior, Data Scientist

Walmart Walmart · Retail · SUNNYVALE TECH CORNERS BLDG 6 CA SUNNYVALE

Senior Data Scientist on the Applied AI Search & Personalization team, developing ML solutions for product discovery and personalized shopping experiences. Focuses on query understanding, retrieval, ranking, recommendations, personalization, and Generative AI, combining AI research with scalable engineering.

What you'd actually do

  1. Identify and source relevant data from multiple business domains, ensuring data quality and suitability for analysis.
  2. Develop, test, and deploy advanced analytical models using Python, PySpark, and statistical methods to solve complex business problems.
  3. Evaluate and validate model performance through rigorous testing and tuning techniques to ensure accuracy and robustness.
  4. Collaborate with stakeholders to translate business requirements into data-driven solutions and actionable insights.
  5. Create clear and effective data visualizations to communicate findings and influence decision-making.

Skills

Required

  • Python
  • PySpark
  • statistical methods
  • SQL
  • NoSQL
  • data visualization
  • large language model evaluation
  • fine-tuning

Nice to have

  • Matplotlib
  • Plotly
  • scikit learn
  • tensorflow
  • torch
  • Spark
  • Scala
  • R
  • Web Content Accessibility Guideli

What the JD emphasized

  • advanced analytical models
  • rigorous testing and tuning
  • data-driven solutions
  • advanced statistical methods
  • predictive modeling
  • large language model evaluation and fine-tuning
  • scalable analytical models
  • data-driven solutions

Other signals

  • improving product discovery
  • tailored shopping experiences
  • query understanding
  • retrieval
  • ranking
  • recommendations
  • personalization
  • Generative AI