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Two Years of Every Click

A hard 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
hard
Seniority
staff

Interview Prompt

Our e-commerce site generates 600 million clickstream events per day through Kafka. Analytics needs this data for user behavior analysis, funnel conversion, and A/B test evaluation, and retention policy requires two years of history. Design the storage and ingestion pipeline.

How This Interview Works

  1. Read the vague prompt (just like a real interview)
  2. Ask clarifying questions to the AI interviewer
  3. Write your pipeline design solution with real code execution
  4. Get instant feedback and a hire/no-hire decision