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Updated weekly · Last refresh Sep 30

Roblox AI Engineer Interview Questions

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

23questions
~3htotal time
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1
CodingStart here. 5 questions · ~45 min
High-Dimensional Embedding SimilarityHard
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Return each query embedding's exact top-k cosine matches using normalization, blocking, and bounded heaps.

Batch ProcessingRoblox
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2
Generative AI & LLMs5 questions · ~45 min
Approach LLM Fine-Tuning for TasksMedium

Explain a practical approach to fine-tuning an LLM for a specific task, including data, evaluation, and hallucination risks.

Prompt EngineeringLLM EvaluationFine-TuningRoblox
Multi-Agent Moderation CooperationMedium

Assesses your design thinking for coordinating multiple agents to produce consistent moderation outcomes.

multi-agent systemsRoblox
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3
System Design5 questions · ~45 min
Design an LLM Serving PlatformHard

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

Cold StartFeature StoreModel ServingRoblox
Human Feedback Improvement LoopMedium

Tests your approach to closing the loop between human moderation signals and model updates.

model performancefeedback loopRoblox
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4
Behavioral & Leadership4 questions · ~36 min
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5
More topics4 questions · ~36 min
Production Metrics for LLMsMedium

Tests your ability to define practical offline and online metrics for LLM quality and safety.

evaluation metricsproductionRoblox
Embedding Generation for Multimodal DataMedium

Evaluates your understanding of multimodal representation learning and embedding design choices.

NLPRoblox
Data Quality for TrainingMedium

Assesses your approach to data validation, cleaning, and quality controls for ML training.

Data Qualityquality assurancemodel trainingRoblox
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The finish line: interview-readyComplete all 23 questions to finish this plan.