Design LeetCode From Scratch | Full System Design Walkthrough

In this video, we design LeetCode from scratch using real system design principles. We cover everything: functional and non-functional requirements, API design, database schema and storage decisions, high level design, a deep dive into the code execution engine, and a final revised HLD. This is the exact approach you need for system design interviews at top tech companies. If you are preparing for system design interviews or want to understand how competitive coding platforms handle millions of code submissions at scale, this video covers it end to end. TIMESTAMPS: 00:00 Introduction 00:58 Functional Requirements 02:20 Non-Functional Requirements 04:50 API Discussion 07:35 Db Discussion 17:00 HLD--1 20:20 HLD--2 21:55 Deep Dives 29:08 Final Design Subscribe for more system design walkthroughs every week. #systemdesign #leetcode #backendengineering #softwaredevelopment