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Updated weekly · Last refresh Nov 6

Shopify Machine Learning Engineer Interview Questions

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

28questions
~5htotal time
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1
CodingStart here. 3 questions · ~29 min
Auto-Refund System in Shared RepoMedium
Practice

Process refund requests exactly once while preventing refunds beyond each order's remaining refundable balance.

deduplicationData StructuresAlgorithmsShopify
TDD Object-Oriented CodingHard
Practice

Implement object-oriented bank transfers with validation, atomic updates, and TDD-friendly results.

clean codeabstractionobject-oriented programmingShopify
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2
System Design9 questions · ~88 min
Baseline Model for Merchant LoansHard

Design a cold-start data collection and baseline recommendation system for small loans to Shopify merchants.

feedback loopactive learningdata collectionShopify
Search Autocomplete ML SystemHard

Design an end-to-end ML autocomplete system for Shopify storefront search, including retrieval, ranking, serving, and evaluation.

ML Rankinglow latencyFeature DriftShopify
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3
Machine Learning5 questions · ~49 min
Distributed Training and Low-Latency InferenceHard

Design distributed GPU training and optimize a deep learning inference pipeline for predictable low latency.

distributed trainingDeep Learningmodel trainingShopify
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4
Behavioral & Leadership7 questions · ~69 min
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5
More topics4 questions · ~39 min
Feature Importance for Linear RegressionHard

Explain how to calculate and interpret feature importance in a linear regression model, including coefficient scaling and multicollinearity.

Evaluation Techniqueslinear regressionModel MetricsShopify
Top-k in LLMsHard

Explain and implement top-k sampling for controlling diversity and coherence during LLM text generation.

Language ModelsMachine LearningTokenizationShopify
Refactoring Pipelines for ReliabilityHard

Refactor a pipeline script to improve throughput, bounded concurrency, retry behavior, observability, and safe recovery from failures.

data pipelineETL optimizationrefactoringShopify
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The finish line: interview-readyComplete all 28 questions to finish this plan.