Coding Interview Prep: Zoom Features and System Design

Preparing for technical interviews can feel overwhelming when you try to memorize endless algorithms. Connecting these theoretical problems to real-world features you use every day, like those in Zoom, makes system design and coding concepts intuitive and highly memorable. This text-based course guides you through the process of mapping real-world video conferencing functionalities to classic coding interview questions. You will understand how to break down complex product requirements into clean data structures, efficient algorithms, and scalable system architectures. What you'll learn: Understand the foundational architecture of real-time communication systems, including WebRTC and signaling protocols; Analyze room-allocation and meeting scheduling features using efficient array and heap algorithms; Design scalable chat and messaging features using appropriate queue and database structures; Solve common coding interview questions related to user presence, connection handling, and rate limiting; Practice breaking down complex system design prompts into manageable, structured components. We begin by exploring foundational networking and system design terminology before diving into specific features. Each section pairs a familiar product feature with step-by-step written code walkthroughs and conceptual design breakdowns to prepare you for your next technical interview. This course is designed for aspiring software engineers and developers preparing for technical interviews, requiring only a basic understanding of programming fundamentals. Start reading today to transform how you approach coding and system design interviews.