(USA) Staff, Data Scientist

Join Walmart as a Staff Data Scientist to leverage advanced analytics and machine learning for transforming complex data into actionable business insights. You will design and scale pipelines for training foundation models, collaborate across functions to identify data sources, and communicate findings through visualizations to drive innovation and operational excellence.

• Design, implement, and scale high-throughput SFT pipelines for foundation model training
• Optimize training hyperparameters and manage high-quality dataset mixtures
• Drive model alignment using preference optimization and reinforcement learning
• Create insightful visualizations to communicate findings to stakeholders
• Translate complex business challenges into data-driven solutions
• Mentor junior team members on analytical methodologies and best practices