United Airlines AI Engineer Interview Questions

Find the length of the longest strictly increasing subsequence in an array using dynamic programming and binary search.

Dynamic ProgrammingArraysSearchingUnited Airlines

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

Cross-ValidationCalibrationThreshold TuningUnited Airlines

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

Feature Engineeringmodel trainingClass ImbalanceUnited 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