Top 21
Prep plan
Updated weekly · Last refresh Aug 30

Faire Applied Scientist Interview Questions

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

21questions
~3htotal time
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1
CodingStart here. 4 questions · ~36 min
Writing a Machine Learning FunctionHard
Practice

Use dynamic programming and backpointers to find the most likely hidden-state sequence in a Hidden Markov Model.

RecursionMathArraysFaire
Python or R Data StructuresMedium

Tests your problem-solving skills and practical coding ability with data structures.

Hash TablesLinked ListsTreesFaire
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2
Machine Learning3 questions · ~27 min
Supervised vs Unsupervised LearningEasy

Explain how supervised and unsupervised learning differ, and ground the distinction in a practical ML example.

Unsupervised LearningFeature EngineeringBias-Variance TradeoffFaire
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3
Behavioral & Leadership8 questions · ~73 min
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4
More topics6 questions · ~55 min
Choosing Classification Evaluation MetricsEasy

Explain which classification metrics to use and how metric choice depends on the business objective and error tradeoffs.

PrecisionAccuracyRecallFaire
Handling Missing DataEasy

Tests your data cleaning judgment and impact awareness on analysis quality.

SubqueriesData WranglingCase WhenFaire
Statistics for Business ImpactMedium

Tests how you apply statistics to drive decisions and measurable outcomes.

RegressionHypothesis TestingStatistical SignificanceFaire
Recommendation System DesignHard

Tests your end-to-end system thinking for ranking, evaluation, and iteration.

RetrievalModel ServingRecommendation SystemsFaire
Handle Imbalanced ClassificationMedium

Tests your approach to evaluation and modeling under class imbalance.

PrecisionThreshold TuningRecallFaire
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Hands-on SQL practiceWrite and run real queries in the editor. 3 drills · ~30 min
The finish line: interview-readyComplete all 21 questions plus 3 hands-on drills to finish this plan.