The Next Track
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 music-streaming service where every play, skip, and save from 500 million listeners arrives as an event, and the recommender needs a listener's just-played tracks reflected in their suggestions within a minute or two. Those same events also feed the weekly model retraining that runs over months of history. Design the pipeline that serves fresh session features to the recommender in near real time while landing exactly-once training data for the batch jobs.
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