As a Senior Data Scientist on the Personalization team at CarMax, you will play a pivotal role in developing and maintaining machine learning models that enhance customer engagement through personalized search and recommendation systems. Your day-to-day responsibilities include analyzing large-scale behavioral data to inform model development, executing statistical tests to measure impact, and collaborating with ML engineers on deployment and service design. You must possess strong Python skills, experience with SQL and tools like Spark for data manipulation, and a solid foundation in statistics. Ideal candidates have experience in e-commerce or marketplace environments and are eager to work on recommender systems and search algorithms. This role involves translating complex findings into clear narratives for stakeholders and partnering closely with cross-functional teams across the organization.
Skills
Python
SQL
Spark
Databricks
A/B testing
recommender systems
search algorithms
deep learning embeddings
Ranking algorithms
APIs
data services
Hypothesis testing
Confidence intervals
Experimental design
Machine Learning
CI/CD
What you'll do
Design and develop ML models to create personalized customer experiences.
Analyze large-scale behavioral data to uncover insights on customer preferences.
Execute statistical tests to measure impact of algorithm changes and new features.
Partner with ML engineers for model deployment and service design.
Translate complex data findings into clear narratives for various stakeholders.
What we're looking for
3+ years experience in data science, preferably in e-commerce or marketplace environments
Degree in quantitative field (math, statistics, computer science) with preference for advanced degree
Strong Python and SQL skills for data analysis and model development
Solid foundation in statistical methods including hypothesis testing and experimental design
Experience working with large datasets using tools like Spark or Databricks
Knowledge of recommender systems, search/ranking algorithms, and embeddings preferred
Ability to collaborate effectively across diverse technical teams
Market check
Salary context
How this pay compares to similar roles
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Employer
About Carmax
CarMax is the largest used car retailer in the United States, offering a customer-friendly, no-haggle buying experience with a broad selection of quality used vehicles, financing, and vehicle protection plans. Industry: Automotive Retail
Python
Java
Machine Learning
Deep Learning
Reinforcement Learning
Generative AI
Computer Vision
Personalization
Recommendation Systems
Data Science
Statistics
CI/CD