Data engineer interview questions
Prepare concise examples from your own work. For this role, be ready to explain a pipeline or model you built, the quality or scale constraint, and a measured reliability result.
Questions to practice
1. How do you detect and recover from pipeline failures?
Start with the situation and your responsibility. Explain the action you took, the evidence you used, and the result or lesson. Keep numbers and claims verifiable.
2. Describe a data model tradeoff you made.
Start with the situation and your responsibility. Explain the action you took, the evidence you used, and the result or lesson. Keep numbers and claims verifiable.
3. How do you validate source data before downstream use?
Start with the situation and your responsibility. Explain the action you took, the evidence you used, and the result or lesson. Keep numbers and claims verifiable.
Prepare your own examples
Pick two or three projects that demonstrate data pipelines and SQL. Practice what you would do differently and prepare questions about the team's actual work.