Seconds to Trend
A medium Pipeline Design mock interview question on DataDriven. Practice with AI-powered feedback, real code execution, and a hire/no-hire decision.
- Domain
- Pipeline Design
- Difficulty
- medium
- Seniority
- mid
Interview Prompt
We run a short-video platform where roughly 5 billion engagement events a day (views, likes, watch-time pings) come off the apps. The trending team needs the hottest videos surfaced within seconds of a spike, while the growth team reports daily active users and 7-day retention on a T+1 cadence from the same events. Design the pipeline that serves both consumers without paying to stream everything.
How This Interview Works
- Read the vague prompt (just like a real interview)
- Ask clarifying questions to the AI interviewer
- Write your pipeline design solution with real code execution
- Get instant feedback and a hire/no-hire decision