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Prep plan
Updated weekly · Last refresh Oct 17

Rakuten NLP Engineer Interview Questions

The questions to prepare for a Rakuten NLP Engineer interview. Questions from real interview reports rank first. Updated daily.

26questions
~4htotal time
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1
NLPStart here. 5 questions · ~45 min
2
System Design4 questions · ~36 min
Deploy a Cloud ML ModelMedium

Design a production ML deployment on Google Cloud with serving, feature management, rollout, monitoring, and evaluation.

InfrastructureFeature StoreModel ServingRakuten
Design Cold Start RecommendationsHard

Design a recommendation system strategy for new users and new items when interaction history is sparse or missing.

Cold StartFeature StoreRecommendation SystemsRakuten
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3
Coding6 questions · ~54 min
Letter Counting in a WordEasy

Assesses your ability to write a correct basic algorithm for text processing.

string manipulationRakuten
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4
Model Evaluation3 questions · ~27 min
Analyzing and Fixing NLP FailuresHard

Tests debugging skills using error analysis and proposing effective model or data changes.

Confusion MatrixCalibrationF1 ScoreRakuten
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5
Behavioral & Leadership5 questions · ~45 min
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6
More topics3 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 TradeoffRakuten
Integrating External APIs for NLPMedium

Tests design of tool use, latency management, and robustness when NLP depends on external services.

Structured ExtractionRAGLLM AgentsRakuten
Structuring Text Data PreprocessingMedium

Tests ability to build reproducible preprocessing steps for NLP training and inference.

ETLBatch ProcessingQualityRakuten
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