Ever wondered how websites and apps work behind the scenes? This course is your complete introduction to back-end development — the foundation that powers everything users see and interact with on the front end. We’ll explore key concepts like servers, databases, APIs, and server-side programming languages such as Node.js and Python. You'll also learn how back-end developers manage data, ensure security, and build scalable systems that support real-world applications. Whether you're new to coding or expanding your tech knowledge, this guide will help you understand the vital role of back-end development in modern software.