Upstart Research Scientist Interview Questions

The questions to prepare for a Upstart Research Scientist interview. Questions from real interview reports rank first. Updated weekly.

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Anomaly Detection with Rolling Windows

Hard

Tests streaming algorithm design and statistical windowing for anomaly detection.

streamingfrequency countSliding Window

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Bayesian vs Frequentist Testing

Medium

Tests statistical testing frameworks and how they affect validation decisions.

Bayesian ReasoningHypothesis Testingmodeling

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Simulating Stochastic Processes in Python

Medium

Tests ability to construct simulation pipelines from primitive randomness.

Samplingsimulation

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XGBoost Loss for Tabular Finance

Hard

Tests understanding of boosting objectives and suitability for tabular credit data.

Ensemble Methodsloss functionsDecision Trees

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Evaluate Model Bias Rigorously

Medium

Approach for evaluating whether a model is biased, including fairness metrics and statistical tests for group disparities.

PrecisionAccuracyRecall

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Preventing Data Leakage in Time Series

Hard

Tests validation design to avoid leakage in time-dependent credit data.

Cross-ValidationEvaluation TechniquesTime Series

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