(usa) Senior, Data Scientist

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

Senior Data Scientist on the Applied AI Search & Personalization team at Walmart, focusing on developing and deploying large-scale machine learning systems for product discovery and personalized shopping experiences. Responsibilities include data sourcing, model development, feature engineering, collaboration with stakeholders, and mentoring junior members, with an emphasis on scalable production deployments.

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 programming languages such as Python and SQL.
  3. Perform exploratory data analysis and feature engineering to enhance model accuracy and business insights.
  4. Collaborate with stakeholders to translate business requirements into data-driven solutions aligned with strategic goals.
  5. Create clear and impactful data visualizations to communicate findings and influence decision-making.

Skills

Required

  • Python programming
  • SQL
  • advanced statistical methods
  • predictive modeling
  • machine learning techniques
  • feature engineering
  • exploratory data analysis
  • big data technologies like Apache Spark
  • distributed data stores including SQL and NoSQL
  • data quality standards
  • data governance
  • business domain context
  • problem-solving skills

Nice to have

  • Matplotlib
  • Plotly
  • Tableau
  • Machine Learning Master's degree
  • Computer Science Master's degree
  • Information Technology Master's degree
  • Operations Research Master's degree
  • Statistics Master's degree
  • Applied Mathematics Master's degree
  • Econometrics Master's degree
  • Python assessments
  • Spark assessments
  • Scala assessments
  • R assessments
  • scikit learn
  • tensorflow
  • torch

What the JD emphasized

  • scalable analytical solutions
  • scalable analytical models in production environments
  • large-scale solutions

Other signals

  • Applied AI Search & Personalization team
  • develops advanced machine learning systems
  • large-scale solutions including query understanding, retrieval, ranking, recommendations, personalization, and Generative AI
  • deploy scalable analytical solutions
  • deploy scalable analytical models in production environments