Walk me through how you would design a URL shortener that handles 10,000 requests per second.
- Tie the answer to architecture, debugging, delivery, and collaboration so it sounds specific to this role.
- Name your personal contribution without taking credit for the whole team.
- Close with what changed afterward: metric, habit, process, or stakeholder trust.
Reveal model answer
I would answer with a specific example tied to architecture, debugging, delivery, and collaboration. The structure should be situation, decision, action, result, and lesson. For a mid Developer interview, the answer should include the tradeoff I made, how I communicated it, and the measurable signal that showed whether the work succeeded.
Practice this in the app →