Loading interview...

Retail Clickstream Event Store at Kafka Scale

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 platform generates 600 million user interaction events per day through Kafka, and we need to store and serve this data for both real-time personalization and offline analytics teams. Current ad-hoc queries are scanning the entire dataset on every run. Design a storage and query architecture that supports both use cases cost-efficiently with two-year data retention.

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