United Airlines AI Engineer Interview Questions

Implement BFS to traverse a graph level by level from a given start node.

QueueSearchingGraphsUnited Airlines

Handle severe class imbalance in rare failure prediction while balancing recall, precision, and operational alert volume.

Feature Engineeringmodel trainingClass ImbalanceUnited Airlines

Explain how to validate a model before deployment, including thresholds, calibration, and holdout testing.

Cross-ValidationCalibrationThreshold TuningUnited Airlines

Approach for adding data quality checks, observability, and production monitoring to a data pipeline.

Data QualitymonitoringobservabilityUnited Airlines

Tests your approach to LLM evaluation, safety, and measuring usefulness for operational users.

HallucinationLLM EvaluationUnited Airlines

Tests your experience applying NLP to real operational documents and handling extraction quality.

Text ClassificationNLPNamed Entity RecognitionUnited Airlines