The Leaderboard That Costs $25K a Month
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
- L5
Interview Prompt
We run a large online gaming platform with tens of millions of active players. The product team wants a real-time leaderboard showing top players by score, a live matchmaking dashboard, and post-game session analytics for the data science team. We currently batch-process all game events daily. Design the analytics pipeline and justify your architecture decisions.
Summary
Product wants it live. Engineering has a price tag.
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