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Three sources feed six custom point-to-point Python jobs that land directly into a finance dashboard

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

Interview Prompt

Three sources feed six custom point-to-point Python jobs that land directly into a finance dashboard, a product dashboard, and an ML feature store. There is no shared raw layer, no shared curated layer, custom-coded ingestion, one orchestrator owning everything, and no undercurrents. Apply the five redesign steps the section walks through to turn this into a layered architecture with named contracts, bought commodity tooling, and split DAGs at team boundaries. Postgres ingestion stays custom; only commodity SaaS connectors are bought.

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

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