Graduate-Level Study Guide
Applied AI
Engineer
A complete, expanded learning companion for the 24-week Applied AI Engineer Roadmap — from web/backend developer to production AI application engineer.
LLM Foundations · Prompting & Structured Outputs · Embeddings & Vector Search · Retrieval-Augmented Generation · Tool Calling · Agents & LangGraph · Model Context Protocol · Evaluation & Observability · AI Security · Production & Cloud Engineering · Multimodal & Fine-Tuning
Based on: Applied AI Engineer — Complete Roadmap (Version: August 2026)
Expanded with prerequisite theory, worked examples, diagrams, sticky notes, comparisons, interview questions, and revision material.

Table of Contents

0How to Use This Guide3
1What an Applied AI Engineer Actually Does4
2Competency Map — What to Learn and How Deep6
3Phase 1 — Python & Backend Foundation8
4Phase 2 — AI, ML, Transformer & LLM Foundations12
5Phase 3 — Model APIs, Prompting & Structured Outputs18
6Phase 4 — Embeddings, Search & Vector Databases23
7Phase 5 — Retrieval-Augmented Generation (RAG)28
8Phase 6 — Tool Calling & AI Workflows35
9Phase 7 — Agents & LangGraph40
10Phase 8 — Model Context Protocol (MCP)46
11Phase 9 — Evaluation, Testing & Observability50
12Phase 10 — AI Security & Safety Engineering55
13Phase 11 — Production Engineering, Cloud & LLMOps60
14Phase 12 — Multimodal AI, Fine-Tuning & Open Models65
15The Complete 24-Week Study Plan69
16Portfolio Projects: Beginner to Flagship72
17Production Architecture Reference76
18Interview & Job Preparation78
19What NOT to Waste Time On82
20Master Checklist84
21Verified Learning Resources86
22Next Steps After the 24 Weeks88
23Final Revision Guide90
24Cheat Sheet93
25Glossary95
26Final Practice Questions (with Answers)98

Page numbers are approximate and reflow with content. Use the header on every page and the section headings above to navigate.