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Interview prep

AI interview questions

Questions asked in Agentic AI, AI Engineer and Forward Deployed Engineer interviews. Each one has a short answer, the detail behind it and the common mistakes.

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Interview sets

Pick a set to practise

Each set is a list of interview questions from easy to hard. Try your own answer before you open the model answer.

Agentic AI Interview Questions50 questions from Agentic AI, AI Engineer and Forward Deployed Engineer interviews, each with a 30-second answer, the depth behind it and the mistakes to avoid.50 questions · 15 easy · 20 intermediate · 15 hardStart practising →AI Forward Deployed Engineer Interview Questions50 questions from AI FDE interviews, from discovery and POCs to stakeholder scenarios, engagement designs and behavioural rounds.50 questions · 15 easy · 20 intermediate · 15 hardStart practising →AI System Design Interview Questions50 design-round questions, from gateways, routing and caching to ChatGPT-scale chat, Copilot-style completion and voice agents.50 questions · 15 easy · 20 intermediate · 15 hardStart practising →RAG Interview Questions50 questions from RAG Engineer, AI Engineer and Forward Deployed Engineer interviews, from chunking and hybrid search to permission-aware retrieval.50 questions · 15 easy · 20 intermediate · 15 hardStart practising →LLMOps & Production Interview Questions50 questions on versioning, CI/CD with eval gates, safe rollouts, GPU serving, observability, incidents and cost.50 questions · 15 easy · 20 intermediate · 15 hardStart practising →Evals & Guardrails Interview Questions50 questions on eval design, LLM judges, statistics, red-teaming, prompt-injection defences and guardrail architectures.50 questions · 15 easy · 20 intermediate · 15 hardStart practising →LLM Fundamentals Interview Questions50 questions from AI Engineer, ML Engineer and Forward Deployed Engineer interviews, from tokens and attention to KV caches, LoRA and GPU serving maths.50 questions · 15 easy · 20 intermediate · 15 hardStart practising →
  1. Read the questionEach one is a question interviewers really ask, marked easy, intermediate or hard.
  2. Answer it out loudThe 30-second answer stays hidden until you have said yours.
  3. Check the depthThen the detail a senior interviewer listens for, the diagram, the mistakes and the follow-ups.
Vidya · AI tutor

Practise your answers out loud

Open a question and answer it out loud to Vidya on a call.

  • Answer out loud. Say your answer as you would in the interview.
  • What you missed. She marks the part of the answer you skipped.
  • The follow-up. The next question a senior interviewer asks.
Practise a question with VidyaSign in free →