A comprehensive weekly coaching program that takes you from Scala collections fundamentals to building production-grade data pipelines. Each week covers a new collection pattern — Lists, Maps, Streams, LazyLists, Iterators, and more — with real-world ETL and streaming use cases. You'll build composable, type-safe pipeline stages, master parallel collections for throughput, and learn design-system thinking applied to backend architecture. Includes live code reviews, pipeline challenges, and a capstone project processing real datasets at scale.