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Perigon Search AI Engineer Interview Questions

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

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1
System DesignStart here. 4 questions · ~32 min
In-Memory Vector Embedding CacheHard

Design a low-latency, memory-efficient cache for storing and retrieving high-dimensional vector embeddings at scale.

latencyFeature StoreRetrievalPPerigon Search
Multi-Agent Collaboration ArchitectureHard

Architect a reliable multi-agent system in which specialized agents coordinate to complete one complex task.

agent workflowsmulti-agent systemssystem architecturePPerigon Search
Cost-Efficient LLM ServingHard

Design an LLM serving platform that balances inference cost, latency, quality, reliability, and user experience.

inference latencyuser experienceModel ServingPPerigon Search
High-Concurrency LLM ServingHard

Design a low-latency, high-concurrency LLM serving layer with effective prompt, response, and KV-cache strategies.

high-frequency requestsinference latencyml inferencePPerigon Search
2
Behavioral & Leadership3 questions · ~24 min
Balancing Accuracy and SpeedHard

Tests conflict resolution and prioritization when balancing model quality, delivery speed, and stakeholder needs.

AIStakeholder ManagementAI developmentPPerigon Search
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3
More topics3 questions · ~24 min
LLM Production Evaluation MetricsHard

Select and justify the evaluation metrics needed to move an LLM from prototype testing to reliable production monitoring.

evaluation metricsMetricsModel MetricsPPerigon Search
State Management for Long Running AgentsHard

Explain how to manage memory, summarization, retrieval, and safety in a long-running LLM agent when context exceeds the model window.

long contextcontext windowstate managementPPerigon Search
RAG to Reduce HallucinationsHard

Design a high-throughput RAG pipeline that grounds answers, detects unsupported claims, and balances quality, latency, and cost.

Vector SearchHallucinationRAGPPerigon Search

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