@thom.code: Part 1 ~ Don t Attend a Backend Interview Before Watching This Video In this video, Cloud x Berry breaks down 10 essential backend concepts every developer should understand. We explore how HTTP requests and APIs work, how authentication protects resources, and how database indexes make large datasets faster to search. You will also learn why transactions prevent inconsistent data, how concurrency creates race conditions, and how caching with tools like Redis improves performance while reducing database load. We then explain how message queues process background jobs, how idempotency prevents duplicate payments and side effects, how rate limiting protects services from excessive traffic, and how scalability and load balancing keep applications reliable as demand grows. By the end, you will understand how these concepts work together to create fast, secure, resilient, and production-ready backend systems. If this helped you understand backend engineering and system design, subscribe to Cloud x Berry for a new developer and system design breakdown every week! Build, solve, deploy. ⏱️ Video Chapters 0:00​ - Why Backend Systems Fail 0:22​ - 1: HTTP and APIs 0:54​ - 2: Authentication and Authorization 1:15​ - 3: Database Indexes 1:41​ - 4: Database Transactions 2:03​ - 5: Concurrency and Race Conditions 2:27​ - : Caching and Redis 2:49​ - : Message Queues and Background Jobs 3:17​ - : Idempotency and Duplicate Prevention 3:41​ - : Rate Limiting 4:06​ - : Scalability and Load Balancing 4:31​ - The Complete Backend Toolkit 5:00​ - Think Beyond Code: Understand the Whole System

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Thursday 23 July 2026 08:45:50 GMT