FDE Interview Sheet — 224 Questions with Solutions

Q: How many FDE interview questions are in this sheet?

The FDE Interview Sheet contains 224 Forward Deployed Engineer interview questions with detailed written solutions, organized across 13 topics including RAG, integrations, system design, and customer communication.

Q: Is the FDE interview sheet free?

Yes. All 224 questions and solutions are free at https://cracksystemdesign.com/fde/sheet with search, difficulty filters, and progress tracking.

Q: What topics does the FDE interview sheet cover?

Topics include FDE role and mindset, backend APIs, integrations and webhooks, RAG and vector search, LLM prompting, agents, FDE system design, cloud and DevOps, security, data engineering, customer communication, backend coding, and production debugging.

Q: How do I prepare for a Forward Deployed Engineer interview?

Use this sheet for question practice, read the free FDE career guide at https://cracksystemdesign.com/fde for role context and salary ranges, and build one production RAG project with evals before interviewing.

Vivek Panchal

FDE SHEET Edition · 2026

Forward Deployed Engineer Interview Sheet

The most comprehensive free FDE prep sheet — 224 interview questions with detailed solutions across RAG, integrations, system design, cloud, security, and customer rounds.

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