**Position Summary...**
Role summary
Join Merchandising Decision Sciences (MDS) as the founding Staff Data Scientist for our new External Data and Analytics Products team. You will design, build, deploy, scale and monitor the ML systems that power Walmart’s view of ROM — the Rest of Market — the slice of retail that doesn’t ring at our own registers but shapes every category decision we make. You will own three model families end-to-end: embedding-driven hierarchy classification, GMV distribution normalization and projection, and causal impact modeling to market share. You will be the only data scientist on the program at the start, so we need someone who can architect for scale on Databricks (on GCP) from day one, ship to production, set up the MLOps foundations, and hand a healthy, well-instrumented platform to the ML engineering team that grows in behind you. This is a builder’s role with a clear runway: get the first models live, prove the lift, and shape the team that scales...