Eight-Hour-Old Positions
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
- L6
Interview Prompt
Our portfolio analytics platform shows clients their real-time holdings value, but trade executions aren't reflected in positions until the nightly batch runs 8 hours later. The risk team also needs intraday P&L with market prices validated against multiple data vendors before they feed NAV calculations. Design a pipeline that makes positions and P&L available in near-real-time throughout the trading day.
Summary
Positions shift by the second. The math cannot lag.
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