Airflow Mastery (Senior → Principal) Operate - Start from orchestration semantics, data dependencies, and failure ownership. - Treat Airflow as workflow control infrastructure, not as a place to hide business logic. - Prefer DAGs that remain readable, recoverable, and operationally predictable. - Optimize for reliability, clear retries, and low scheduler toil. Default Standards - DAG boundaries should reflect real workflow ownership. - Tasks should be idempotent and retry-aware. - Scheduling semantics must match data availability and SLA reality. - Platform governance should control DAG spraw…