Top 50
Prep plan
Updated weekly · Last refresh Nov 6

OpenAI GenAI Engineer Interview Questions

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

50questions
~10htotal time
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1
CodingStart here. 16 questions · ~201 min
Fix Transformer Bugs and Recycle as ClassifierHard
Practice

Repair Transformer shape, masking, and residual bugs, then expose a classifier with the correct final-layer output shape.

backpropagationCodingAlgorithmsOpenAI
GPU Credits Time-OrderingHard
Practice

Process GPU credits and debits chronologically with FIFO consumption and timestamp-based expiration.

ArraysData StructuresAlgorithmsOpenAI
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2
System Design3 questions · ~38 min
Slack MVP under Time ConstraintHard

Design a reliable Slack message-delivery MVP in two weeks, covering scalability, delivery semantics, retries, ordering, and failure recovery.

latencydistributed systemsfailure modesOpenAI
High-Volume Webhook Delivery PlatformHard

Design a highly reliable webhook delivery platform capable of handling billions of requests with strong performance guarantees.

distributed systemsnotification systemfailure modesOpenAI
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3
Generative AI & LLMs19 questions · ~238 min
Evaluate Fine-Tuned vs Base ModelMedium
Recently asked

Define an eval plan to compare a fine-tuned model against the base model, covering offline quality, hallucination risk, and online validation.

OpenAI
Cut LLM Latency Below 1sHard
Recently asked

Reduce LLM response latency from 3 seconds to under 1 second while preserving acceptable answer quality and controlling hallucinations.

OpenAI
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4
Model Evaluation6 questions · ~75 min
A/B Test Prompt VariantsMedium
Recently asked

Tests experimentation design and metrics selection for prompt changes.

OpenAI
LLM-as-Judge vs Human EvalMedium
Recently asked

Tests judgment about evaluation methods, cost, and reliability tradeoffs.

OpenAI
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5
Behavioral & Leadership6 questions · ~75 min
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