On a scale of 1 to 5 (1 = no experience, 5 = deep expertise), how would you rate your experience with the following areas?: 1) Data Modeling & Transformation (dbt/ELT, dimensional/semantic layers, SQL) 2) BI Engineering & Visualization (Looker, Tableau, Power BI; metrics layers, dashboards) 3) Data Quality & Reliability (tests, data contracts, observability)✱