A Data Engineer’s Guide to Understanding Large Language Models If you’ve ever typed a prompt into ChatGPT, Claude, or Gemini and wondered, “How does this thing actually work?” — you’re not alone. Large Language Models (LLMs) are the most talked-about technology in recent years. Yet what happens under the hood remains unclear to many engineers. In this article, we’ll break down how LLMs work — from architecture to training to inference — so you understand not just what they do, but how and why they do it. 1. What Is an LLM, Really? At its core, a Large Language Model… Read more
Tag: Data Engineering
Medallion Architecture in Microsoft Fabric: Bronze, Silver & Gold Explained
A practical guide to implementing Medallion Architecture in Microsoft Fabric — designed for SQL professionals transitioning into Lakehouse. What is Medallion Architecture? Medallion Architecture is a layered data design pattern used in modern Data Lake and Lakehouse platforms. It organizes data into progressively refined layers — typically Bronze, Silver, and Gold — improving data quality, structure, and usability at each stage. Rather than transforming data in one large step, the Medallion approach promotes controlled, incremental refinement. This makes systems more scalable, testable, and easier to troubleshoot. 💡 Architecture Principle: Medallion is not a product feature — it is a design… Read more
Understanding Key Terms and Tools in Microsoft Fabric
Microsoft Fabric is a comprehensive and unified analytics platform that brings together various data services into a single ecosystem. It enables organizations to efficiently handle data engineering, analytics, machine learning, and business intelligence. Below, we explore the key terms and tools used in Microsoft Fabric to help you understand its capabilities. 1. Core Components Lakehouse A hybrid data storage architecture that merges the features of data lakes and data warehouses to provide scalable and flexible data management. Data Warehouse A structured data storage solution optimized for SQL-based analytics, supporting high-performance queries and data modeling. Data Factory A powerful ETL (Extract,… Read more