Senior Data Scientist - Walmart

Key Responsibilities

• Design, develop, and deploy scalable machine learning models that power personalized product recommendations across multiple e‑commerce channels.
• Collaborate with platform and application engineers to integrate models into production pipelines on AWS, ensuring high availability and performance.
• Analyze large, heterogeneous datasets using SQL and Python to uncover insights, validate model assumptions, and drive continuous improvement.
• Mentor junior data scientists and cross‑functional teams, fostering a culture of experimentation and data‑driven decision making.
• Communicate findings and model impact to stakeholders through clear visualizations and technical documentation.

Requirements

• 5+ years of experience in data science or related field, with a strong background in machine learning and statistical modeling.
• Proficiency in Python, SQL, and experience with AWS services (SageMaker, Redshift, Lambda).
• Hands‑on experience building end‑to‑end ML pipelines, including feature engineering, model training, and deployment.
• Excellent problem‑solving skills and ability to translate business problems into analytical solutions.
• Strong communication skills and a track record of collaborating with engineering and product teams.