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The Complete AI and LLM Engineering Roadmap: From Beginner to Expert

From Raw Data to LLM Fine-Tuning, RAG and LLMOps

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javinpaul and Paul Iusztin
Jun 20, 2025
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Breaking into AI and Large Language Model (LLM) engineering can feel overwhelming. With rapid advancements in transformer architectures, tools like LangChain and Hugging Face, and the constant evolution of open-source models, many developers and aspiring ML engineers struggle to find a clear, structured path to mastery.

That’s why we’re excited to featur…

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A guest post by
Paul Iusztin
Senior AI Engineer • Founder @ Decoding AI • Author @ LLM Engineer’s Handbook I ship AI products and teach you about the process.
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