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Alexandro Arreola-Garcia

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Senior Manager, Assortment & Space Walmart

Alexandro Arreola-Garcia is a Senior Manager of Merchandising Transformation at Walmart, where he leads assortment and space analytics initiatives. With expertise in big data technologies and cloud platforms, he leverages Apache Spark, Python, and interactive R Shiny applications to drive data-informed merchandising decisions and deliver insights through custom web dashboards. His background combines retail analytics, data engineering, and full-stack development, having progressed from roles in global sourcing and business analysis to leading large-scale data transformation projects. Alexandro holds an MS in Business Analytics from SMU Cox School of Business and brings extensive experience with enterprise data tools including Google BigQuery, Apache Spark, and machine learning applications.

Bio from: Data + AI Summit 2025

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Self-Service Assortment and Space Analytics at Walmart Scale

Assortment and space analytics optimizes product selection and shelf allocation to boost sales, improve inventory management and enhance customer experience. However, challenges like evolving demand, data accuracy and operational alignment hinder success. Older approaches struggled due to siloed tools, slow performance and poor governance. Databricks unified platform resolved these issues, enabling seamless data integration, high-performance analytics and governed sharing. The innovative AI/BI Genie interface empowered self-service analytics, driving non-technical user adoption. This solution helped Walmart cut time to value by 90% and saved $5.6M annually in FTE hours leading to increased productivity. Looking ahead, AI agents will let store managers and merchants execute decisions via conversational interfaces, streamlining operations and enhancing accessibility. This transformation positions retailers to thrive in a competitive, customer-centric market.