Strong applied knowledge of several of: Unity Catalog governance, batch and incremental ETL/ELT, Spark performance tuning, REST services, AWS data services (Athena, Glue, EMR, Lambda), Terraform, GitHub Actions, and Git. Databricks: Delta Lake, Unity Catalog, PySpark/Spark SQL, Databricks SQL warehouses, Workflows/Jobs, notebooks, materialized views, SQL table-valued functions.