## Solve a Difficult Problem and Navigate Disagreement Answer both parts using real professional, academic, or substantial personal-project examples. The interviewer is evaluating how you reason under uncertainty and how you work through disagreement, not whether every outcome was perfect. ### Constraints & Assumptions - Keep each initial answer under five minutes. - Make your personal decisions and actions explicit. - Do not disclose confidential names, customer data, or unreleased details. ### Clarifying Questions to Ask - May I use an example from outside paid employment if it best demonstrates the skill? - Would you prefer a technical disagreement or a disagreement about execution priorities? ### Part 1: The Hardest Problem You Solved What is the hardest problem you have faced, and how did you solve it? Describe the context, why existing approaches were insufficient, how you reduced uncertainty, the actions you took, and the result. #### Clarifying Questions for this Part - Should I go deeper into the technical diagnosis or the coordination required to resolve it? #### What This Part Should Cover - A genuinely difficult constraint or uncertainty. - A structured investigation with rejected hypotheses or options. - Personal ownership, outcome, and a candid lesson. ### Part 2: Disagreement with a Colleague How do you respond when you and a colleague disagree? Ground the answer in one specific example, including the competing views, how a decision was reached, and what happened afterward. #### Clarifying Questions for this Part - Is it useful to discuss an example where my preferred option was not selected? #### What This Part Should Cover - Accurate representation of both positions. - Evidence, listening, and a decision path appropriate to the stakes. - Commitment after the decision and preservation of the working relationship. ### Hints - Explain how you knew you were making progress, not only the final fix. - A disagreement story is stronger when you can name something valid in the other position. ### What a Strong Answer Covers - Specific context, stakes, and individual responsibility. - A repeatable problem-solving process: observe, form hypotheses, test, decide, and verify. - Constructive disagreement based on shared goals and explicit decision criteria. - Honest results, limitations, and changes made after reflection. ### Follow-up Questions - Which assumption was most misleading at the start? - How did you verify that the problem was actually solved? - What would make you escalate a disagreement? - Tell me about a time evidence showed that your colleague was right.