You can whiteboard a multi-workspace Unity Catalog governance model, explain when Photon earns its cost, diagnose a skewed join from a Spark UI screenshot, and reason about Delta Lake file layout and liquid clustering under real workloads. Hands-on command of Spark, Delta Lake, Unity Catalog, Databricks Workflows, Delta Live Tables, MLflow, and Mosaic AI, plus fluency in at least one major cloud (AWS, Azure, or GCP) and infrastructure as code.