Top 11
Prep plan
Updated weekly · Last refresh Aug 30

Andela Machine Learning Engineer Interview Questions

The questions to prepare for a Andela Machine Learning Engineer interview. Questions from real interview reports rank first. Updated weekly.

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1
CodingStart here. 3 questions · ~29 min
Efficient Cosine SimilarityMedium
Practice

Compute cosine similarity efficiently by iterating over the smaller sparse vector and looking up shared dimensions.

Hash TablesMathArraysAndela
Decision Tree Node SplitHard

Tests your ability to implement core ML algorithm logic and handle data splitting correctly.

RecursionTreesDecision TreesAndela
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2
Machine Learning4 questions · ~38 min
Vanishing Gradients in Deep NetworksMedium

Explain vanishing gradients in deep networks and how residual connections, batch normalization, and activation choice improve training.

Neural NetworksDeep LearningGradient DescentAndela
Handle Imbalanced ClassificationMedium

Choose a classification strategy that performs well when the positive class is rare and costly to miss.

Cross-ValidationRegularizationSupervised LearningAndela
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3
More topics4 questions · ~38 min
Fraud Detection Batch vs StreamingMedium

Design a fraud pipeline that compares batch, streaming, and hybrid architectures for 120K tx/sec with sub-300 ms decisions and reconciled hourly tables.

Stream ProcessingETLBatch ProcessingAndela
Offline Accuracy vs A/B ResultsHard

Tests your ability to diagnose evaluation gaps between offline metrics and online business outcomes.

AccuracyDiagnosisA/B TestingAndela
Resume Skills Extraction PipelineHard

Tests your ability to design an end-to-end NLP pipeline for large-scale unstructured resume data at Andela.

Language ModelsNamed Entity RecognitionTokenizationAndela
MLOps and SQL in PipelinesMedium

Evaluates your ability to operationalize ML workflows using MLOps, SQL, and Python.

sqlpythonmlopsAndela
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