Build and optimize Databricks Lakehouse architectures and scalable ETL/ELT pipelines using Spark and Delta Lake across AWS, Azure, and GCP. Tune performance and cloud costs, integrate MLflow for AI model operationalization, and implement CI/CD and Infrastructure-as-Code deployments. Enforce governance, security, and compliance through Unity Catalog. Partner with architects, data scientists, engineers, and clients to deliver production-ready AI solutions and documentation.