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Gina's Tech Jobs Applied Scientist Interview Questions

The questions to prepare for a Gina's Tech Jobs Applied Scientist interview. Questions from real interview reports rank first. Updated daily.

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1
System DesignStart here. 4 questions · ~32 min
Debugging a Poorly Performing ModelMedium
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Design a systematic way to debug an ML model that is underperforming in production.

Feature DriftModel Servingfailure modesGGina's Tech Jobs
Design a Low Latency Inference PlatformHard
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Design a low latency ML inference platform for high-frequency online predictions with strict response times and evolving model features.

high-frequency requestslatencysystem architectureGGina's Tech Jobs
Resource-Constrained OptimizationMedium
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Evaluates experience optimizing models for limited compute/memory.

system designresource constraintsGGina's Tech Jobs
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2
Machine Learning6 questions · ~48 min
Explain Transformer InferenceMedium
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Evaluates understanding of Transformer decoder inference mechanics.

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KV Caching in AutoregressionMedium
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Tests knowledge of caching mechanisms to improve autoregressive generation.

kv cachinginference optimizationGGina's Tech Jobs
Cross-encoder vs Bi-encoder RetrievalMedium
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Evaluates understanding of retrieval architectures and trade-offs.

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Long-Context Model ScalingMedium
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Evaluates concepts for scaling sequences in long-context models.

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3
Behavioral & Leadership4 questions · ~32 min
Deep Dive Into a ProjectHard
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Tests technical ownership, decision quality, optimization judgment, and the ability to explain individual impact with precision.

AIaccountabilitybehavioralGGina's Tech Jobs
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The finish line: interview-readyComplete all 14 questions to finish this plan.