Position Summary What you'll do As a Principal Engineer in Walmart's Fraud and Risk platform, you will define and drive the architecture of next-generation fraud and risk prevention systems at massive scale. You will lead the design of platforms that combine real-time decisioning, entity intelligence, agentic AI, and human-in-the-loop workflows. This role requires deep technical leadership, owning architecture across systems and enabling teams to build scalable, intelligent, and explainable fr