Google DeepMind Research Scientist Interview Questions

The questions to prepare for a Google DeepMind Research Scientist interview. Questions from real interview reports rank first. Updated daily.

50questions

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CodingStart here. 8 questions · ~68 min

Explain how to improve coding solutions by reducing time complexity first, then balancing space trade-offs.

Improve Provided CodeMedium

Assesses code review skills, debugging mindset, and improvement strategies.

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Statistics & Probability5 questions · ~43 min

Orthogonal VectorsMedium

Assesses linear algebra intuition relevant to ML and optimization.

linear algebra

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Basic Probability and Stats ConceptsMedium

Tests foundational understanding of statistical relationships.

Correlation

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Machine Learning17 questions · ~145 min

Example RL AlgorithmMedium

Tests familiarity with common RL methods and their purpose.

Algorithms

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Behavioral & Leadership15 questions · ~128 min

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More topics5 questions · ~43 min

Assesses understanding of transformer architectures and how they power LLMs.

Debugging Underperforming BenchmarksHard

Tests your ability to run structured diagnosis and isolate whether issues are model or data related.

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Data Structures Under Memory ConstraintsMedium

Tests your ability to choose efficient representations under strict resource limits.

Data Structuresoptimization

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