Map data flows and processing dependencies across web, mobile, connected TV, advertising platforms, APIs, SDKs, data pipelines, cloud services, and third-party integrations; review and/or produce clear system and data-flow diagrams. Working knowledge of modern web, mobile, API, cloud, and data-platform architectures, including client-side and server-side processing, cookies and local storage, mobile identifiers, SDKs, event pipelines, and data warehouses.