Describe a time you disagreed with a teammate about a technical approach. How did it end?

Note: Choose a disagreement you lost, or one that ended in a third option. Stories where you were simply right and everyone came round make interviewers uneasy.

Give it structure:

• The substance. State both positions fairly — for example, whether to adopt a state management library or to lift state and use context, or whether to rewrite a component or refactor it in place.
• How you moved it out of opinion. This is the part that matters. Building a small prototype, measuring the bundle impact, or writing down the two options with their trade-offs turns an argument into a decision.
• How it was settled. Who decided, and on what evidence.
• How you behaved afterwards. If the decision went against you, say that you committed to it fully rather than relitigating it in code review.

Interviewers are screening for whether you can be overruled without becoming difficult to work with.