Top 12
Prep plan
Updated weekly · Last refresh Oct 17

Factored GenAI Engineer Interview Questions

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

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1
CodingStart here. 3 questions · ~37 min
O(1) Randomized SetMedium
Practice

Implement insert, delete, and random retrieval in O(1) using an array and hash map.

Hash Tablestime complexityArraysFactored
Real-Time Duplicate DetectionHard
Practice

Detect repeated documents in a stream using compact content hashes instead of retaining full document text.

deduplicationStream ProcessingData StructuresFactored
Async LLM Client with RetriesHard
Practice

Build a modular async LLM client that retries transient failures with capped exponential backoff.

api requestsnetwork requestsclean codeFactored
2
Generative AI & LLMs6 questions · ~74 min
Compare Fine-Tuned Model vs APIMedium

Evaluate a fine-tuned open-source model against a commercial LLM API using offline quality checks and online experimentation.

Model MetricsLLM EvaluationFine-TuningFactored
Explain Self-Attention in TransformersMedium

Explain how self-attention works and why it is central to transformer-based LLMs.

Neural NetworksPrompt EngineeringDeep LearningFactored
Fix Hallucinations in RAG AnswersEasy

Reduce hallucinations in a RAG system even when retrieval is already correct, using grounding, verification, and evaluation.

Factored
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3
More topics3 questions · ~37 min
Design a Low Latency RAG PlatformHard

Design a low latency RAG system over millions of documents, with scalable retrieval, ranking, generation, and production monitoring.

low latencyscalabilityRAG architectureFactored
Design Feature Drift Monitoring SystemHard

Design a production ranking system with robust feature drift monitoring across batch and real-time features at high QPS.

Feature StoreFeature DriftModel ServingFactored
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