The Book
$27
- One Hour to Offer: Practical Prep for AI Engineer and FDE
- 79 pages, PDF and Word
- 26 chapters, 14 diagrams
- The night-before cheat sheet
You don't need another 40-hour course. You need to know what's asked, and how to answer it.
Too much material
Two-hour videos, endless blog posts, 300-page PDFs. You watch a lot, remember very little, and the interview is still on Thursday.
Rounds nobody prepares you for
AI and FDE loops now include take-home builds, coding with an AI assistant and a customer role-play. Most prep material ignores all three.
No time
You don't need a curriculum. You need the shortest path to answers you can say with confidence.
Short enough to finish. Deep enough to pass.
- 60
- minutes on the fast path
- 26
- short chapters in three parts
- 14
- diagrams that make ideas stick
- 9
- company interview loops mapped in the Pack
What's inside
Part 1 · 15 minutes
Core Concepts
- ML Essentials
- Deep Learning Essentials
- Embeddings and Tokenization
- Transformers and Self-Attention
- How LLMs Are Trained
- Decoding and Generation
Part 2 · 30 minutes
Building with LLMs
- Prompt Engineering Patterns
- RAG in Depth
- Evaluating LLM Systems
- AI Agents and Tool Use
- MCP (Model Context Protocol)
- Building an MCP Server and Agent Skills
- LangChain Today
- LangGraph: Agents as Graphs
- Other Agent Frameworks
- Production: Latency, Cost, Guardrails
- Serving and Inference
Part 3 · 25 minutes
The Interview
- AI System Design: A RAG Chatbot
- Take-Home Assignments
- The AI-Assisted Coding Round
- The FDE Rounds: Decomposition and Role-Play
- The Project Deep Dive
- Forty Questions to Practise Out Loud
- Behavioural Answers for AI and FDE Roles
- Interviewing Across Regions
- The Night-Before Cheat Sheet
Read before you buy
Every chapter follows the same rhythm: the idea in one sentence, the intuition, a diagram or formula, a worked example, and the questions interviewers really ask. See for yourself.
Reading prepares you. Practice gets you the offer.
The Interview Pack turns the book into rehearsal, so the first time you answer out loud isn't in the interview.
112 practice questions
Nine themes, each with a 60-second answer outline.
Self-scoring rubrics
Seven rounds, plus a mock-interview script a friend can run.
Company loop maps
Palantir, OpenAI, Anthropic, Google, Meta, Canva, Atlassian, Shopify and Cohere.
Starter repo
A runnable RAG app with evals and tests, ready for take-homes.
112 flashcards
Colour-coded, for Anki or any flashcard app.
Made for you if you're
- A software engineer moving into AI engineering
- Preparing for Forward Deployed or Applied AI roles
- Interviewing soon and short on time
- Applying in the US, UK, Europe, Canada or Australia
Not for you if you want
- A full course on training models from scratch
- Research-scientist interview prep
- A substitute for building real projects
Choose your prep
One payment. Instant download. No subscription.
Book + Interview Pack
$47
- Everything in The Book
- 112 practice questions with answer outlines
- Rubrics and a mock-interview script
- Loop maps for 9 companies
- Starter repo and 112 flashcards
Secure checkout by Lemon Squeezy · Local prices with tax included where it applies · Read the free sample first · Refund Policy
Questions
Can I really prepare in one hour?
The fast path takes about 40 minutes: Part 3, the interview questions at the end of each chapter, and the cheat sheet. Reading cover to cover takes a little over an hour.
What format is it in?
A PDF for any device and a Word file. The Pack adds a code repo (zip) and flashcards (Anki and CSV).
Is it up to date?
Version 1.2 was checked in October 2026, with current LangChain 1.0 and LangGraph code and the November 2025 MCP specification. [Your update policy, for example free updates for 12 months.]
Is it for beginners?
It assumes you can code. New to AI? Read it front to back. Already experienced? Jump straight to Part 3.
Can I get a refund?
Because digital files can be copied, sales are final once you've downloaded them. If a file is missing or damaged, or you were charged twice, email us and we'll fix it or refund you. That's why we share free sample pages: so you know exactly what you're getting first.
How does payment work?
Checkout is handled by Lemon Squeezy, which accepts cards and shows local prices with tax included where it applies. Your download link arrives by email straight away.
Your interview is coming. Be ready for it.
Everything they'll ask. Nothing they won't.