Top 18
Prep plan
Updated weekly · Last refresh Sep 18

Photon AI Engineer Interview Questions

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

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1
Generative AI & LLMsStart here. 3 questions · ~24 min
Fix Hallucinations in RAG AnswersEasy

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

Photon
Designing a RAG PipelineMedium

Evaluates your end-to-end approach to building retrieval-augmented generation systems.

design processPhoton
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2
System Design4 questions · ~32 min
Design an LLM Serving PlatformHard

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

Cold StartFeature StoreModel ServingPhoton
Reliability for Multi-Agent ProductionHard

Evaluates your approach to reliability engineering for multi-agent deployments.

multi-agent systemsproductionPhoton
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3
Behavioral & Leadership6 questions · ~48 min
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4
More topics5 questions · ~40 min
Fine-Tuning vs Prompted APIsMedium

Compare when to fine-tune a foundation model versus relying on prompt engineering with a managed API.

Trade-offsPrompt Engineeringmodel fine-tuningPhoton
Manage Production Model DriftHard

Approach for detecting, interpreting, and responding to model drift in a production AI system.

CalibrationAUC-ROCThreshold TuningPhoton
Embedding Selection ApproachMedium

Assesses your ability to choose embeddings that fit retrieval and downstream task needs.

NLPPhoton
Evaluating LLM Output QualityMedium

Assesses how you measure and validate LLM quality under real usage constraints.

evaluation metricsLLM EvaluationproductionPhoton
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