Data EngineeringTechnical Knowledge
How to Become an Azure Data Engineer: Skills, Tools and a Learning Plan
What an Azure data engineer does, the services and skills to learn, how to practise without a big bill, and where certification stands now.
ResourcesResources for Data & AI
Resources for Data & AI
Engineering Thinking.
Practical notes, guides, knowledge checks, and explanations on data platforms, AI systems, architecture, and career growth.
29 articles and counting — new content every few days.
15 articles
AI EngineeringOct 22, 2026
AI Engineer Roadmap: From Python to Production Agents
A practical AI engineer roadmap: the skills to learn, in order, from LLM basics and RAG to evaluation, agents and shipping a real application.
8 min read
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AI EngineeringSep 15, 2026
ChatGPT Is Not Just an LLM. So What Is Actually Happening Behind It?
The difference between a model and an AI application, what happens behind ChatGPT beyond the LLM, and why it matters for anyone learning to build with AI.
6 min read
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AI EngineeringSep 7, 2026
AI Engineering Is Just Prompting & LLM Calls. Is It Really That Easy?
A realistic look at what AI Engineering actually means in an enterprise environment and why the model is only one part of the problem.
6 min read
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AI EngineeringSep 3, 2026
AI Engineering Knowledge Check
Quick questions and answers to test your understanding of AI Engineering concepts for interviews and masterclasses.
~5 min test
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AI EngineeringSep 3, 2026
Evaluation of LLMs
How to systematically measure the performance of AI systems and solve the
~10 min read
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AI EngineeringSep 3, 2026
Expose Your AI Agent via FastAPI
How to turn a Python LangGraph agent script into a production REST API with FastAPI: the minimum code, request models and how to run it.
5 min read
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AI EngineeringSep 3, 2026
How to Extract Reliable JSON from LLMs
Stop writing RegEx to parse LLM outputs. Use Structured Outputs and Tool Calling instead.
5 min read
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AI EngineeringSep 3, 2026
How LLMs Work Internally
A high-level understanding of the Transformer architecture behind modern AI models.
~12 min read
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AI EngineeringSep 3, 2026
Get Your Free Groq API Key
Groq gives you fast, free LLM inference — no credit card needed. Get your key in 3 minutes so you\
~3 min read
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AI EngineeringSep 3, 2026
Get LLM API Keys (OpenRouter, etc.)
A consolidated guide to obtaining API keys for OpenRouter, Together AI, and OpenAI to build versatile AI applications.
~5 min read
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AI EngineeringSep 3, 2026
Knowledge Check: Prompt Engineering
Test your understanding of advanced prompting techniques for AI interviews.
4 min read
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AI EngineeringSep 3, 2026
RAG vs. Fine-Tuning
When to use which, and why the industry frequently gets it wrong when giving LLMs custom knowledge.
5 min read
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Browse everything
All 29 articles.
Data Engineering
- How to Become an Azure Data Engineer: Skills, Tools and a Learning Plan
- How to Choose a Data Engineering Course: A Checklist
- Data Engineer Roadmap: What to Learn, and in What Order
- Apache Iceberg vs. Delta Lake
- Azure Databricks Setup
- Azure Free Account Setup
- CI/CD for Databricks
- How to Connect ADF to Databricks
- How to Find Datasets for DE Projects
- The Medallion Architecture Explained
- What is Data Mesh?
AI Engineering
- AI Engineer Roadmap: From Python to Production Agents
- ChatGPT Is Not Just an LLM. So What Is Actually Happening Behind It?
- AI Engineering Is Just Prompting & LLM Calls. Is It Really That Easy?
- AI Engineering Knowledge Check
- Evaluation of LLMs
- Expose Your AI Agent via FastAPI
- How to Extract Reliable JSON from LLMs
- How LLMs Work Internally
- Get Your Free Groq API Key
- Get LLM API Keys (OpenRouter, etc.)
- Knowledge Check: Prompt Engineering
- RAG vs. Fine-Tuning
- Setting Up Your AI Workspace
- What are Agentic Workflows?
- What Are Embeddings?