Hands-on expertise with Looker and LookML, including designing and maintaining scalable semantic models; developing complex Explores, Views, dimensions, measures, joins, and relationships; implementing derived tables and Persistent Derived Tables (PDTs); creating reusable LookML patterns; and applying strong LookML development, testing, documentation, and version-control practices. Experience developing, training, validating, tuning, and deploying machine learning models using Vertex AI, including supervised learning techniques such as regression and classification and, where applicable, time-series forecasting, clustering, or other advanced analytical approaches (Vertex AI, SageMaker, or Azure ML).