Behavioral deep dive: 1) Describe the most impactful modeling project you led end‑to‑end—your role, the concrete business metric moved, and one hard trade‑off you made under time pressure. 2) What team environment enables your best modeling work, and how do you shape it? 3) Recall a major challenge or failure (e.g., data quality surprise in production, stakeholder misalignment); walk through your actions, conflict management, and measurable outcome. 4) How do you communicate complex model results (coefficients, R², feature attributions) to non‑technical stakeholders to drive decisions, and how do you handle pushback?