Financial Ratings Data Pipeline with dbt Incremental Strategy

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

senior

Interview Prompt

We publish credit ratings and financial data to thousands of institutional clients who pay for real-time feeds and historical databases. Our dbt transformation layer has become a bottleneck - full refreshes take 6 hours and we can't meet our real-time client SLAs, but incremental models are giving us stale data when a company's historical prices need retroactive adjustment after a stock split or merger. Design a transformation pipeline that handles both real-time feed delivery and retroactive historical corrections.

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