Top 47
Prep plan
Updated weekly · Last refresh Aug 30

Luxoft AI Engineer Interview Questions

The questions to prepare for a Luxoft AI Engineer interview. Questions from real interview reports rank first. Updated weekly.

47questions
~7htotal time
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1
CodingStart here. 11 questions · ~100 min
Semantic Search with Precomputed EmbeddingsMedium
Practice

Rank pre-embedded Luxoft documents by cosine similarity and return the top k results using a bounded heap.

function implementationLuxoft
Basic API Rate LimitingMedium
Practice

Implement a per-user token bucket rate limiter with constant-time decisions and lazy token refilling.

function implementationapirate limitingLuxoft
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2
Generative AI & LLMs12 questions · ~109 min
Design a Multi-Agent Research AssistantMedium

Design a grounded multi-agent assistant that plans, retrieves, and synthesizes answers under strict latency, cost, and hallucination limits.

Prompt EngineeringRAGLLM AgentsLuxoft
Evaluate an LLM SystemMedium

Explain how to evaluate a generative model using offline and online methods, with attention to hallucination, product metrics, and experiment design.

HallucinationPrompt EngineeringLLM EvaluationLuxoft
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3
System Design8 questions · ~73 min
Design an LLM Serving PlatformHard

Design an LLM serving system that balances latency, cost, scalability, and safety for production traffic.

Cold StartFeature StoreModel ServingLuxoft
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4
Machine Learning3 questions · ~27 min
Low-Latency ML Inference PipelineHard

Evaluates your approach to reducing inference latency across the ML pipeline.

inference optimizationLuxoft
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5
Behavioral & Leadership11 questions · ~100 min
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6
More topics2 questions · ~18 min
Evaluate Models in ProductionHard

How to evaluate a production model using calibration, thresholds, and confusion matrix tradeoffs.

CalibrationAccuracyThreshold TuningLuxoft
Selecting Embeddings for NLP TasksMedium

Evaluates your ability to choose embeddings based on task requirements and constraints.

Luxoft
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