Senior Data Scientist

. Identify suitable data sources and perform initial data quality checks .

Posted 9/25/2026full-timeSunnyvale • California • United StatesSenior💰 $117,000 - $234,000 per yearWebsite

Tools & technologies

JavaOpen SourcePythonScalaScikit-LearnSparkSQLTableauTensorflow

Key responsibilities & impact

Identify suitable data sources and perform initial data quality checks
Apply data strategy, data management, data quality, and data governance principles
Support deployment, evaluation, scalability, and sustainability of analytical models
Develop and test code using SQL, Java, C, Python, and other recommended languages
Assess and validate models using fit, tuning, and validation techniques
Create data visualizations using tools such as Python, R, GGplot, Matplotlib, Plotly, Tableau, and Power BI
Present insights to business and stakeholder audiences and tailor communication to stakeholders
Guide and mentor junior associates on visualization, modeling, and analytics techniques
Translate business problems and requirements into analytical or mathematical solutions
Conduct exploratory data analysis, hypothesis testing, statistical inference, trend analysis, and cluster analysis
Develop custom analytical models and provide business recommendations and insights
Build stakeholder relationships, implement business solutions, monitor results, and identify improvement opportunities
Support Walmart’s mission, values, ethics, compliance, and continuous improvement objectives

What you’ll need

Option 1: Bachelor’s degree in Statistics, Economics, Analytics, Mathematics, Computer Science, Information Technology, or related field and 3 years' experience in an analytics related field
Option 2: Master’s degree in Statistics, Economics, Analytics, Mathematics, Computer Science, Information Technology, or related field and 1 years' experience in an analytics related field
Option 3: 5 years' experience in an analytics or related field
Knowledge of data science, machine learning, and optimization models
Preferred experience or assessment completion in Python, Spark, Scala, or R
Experience using open source frameworks such as scikit-learn, TensorFlow, or Torch
Knowledge of WCAG 2.2 AA standards, assistive technologies, and digital accessibility best practices is preferred

Comp & perks