ashishps1/awesome-system-design-resources

Awesome System Design Resources is a curated collection of free learning materials for studying system design, the practice of designing large-scale software architectures that can handle many users, remain available under failures, and scale efficiently. System design is a major component of software engineering interviews at large technology companies, and having a structured list of resources makes preparation much easier. The repository organizes links under conceptual categories. Core concepts covers scalability, availability, the CAP theorem (a principle about trade-offs in distributed systems), and consistent hashing. Networking fundamentals covers DNS, load balancing, HTTP, and proxies. The API section covers REST, GraphQL, WebSockets, and rate limiting. Databases covers SQL vs NoSQL trade-offs, indexing, sharding (splitting a database across multiple servers), replication, and caching. Additional sections address asynchronous communication patterns like message queues, distributed systems patterns like circuit breakers and service discovery, and common architectural patterns like microservices and event-driven design. There is also a section of full system design interview problems, walk-throughs for designing systems like URL shorteners, WhatsApp, Twitter, Google Drive, and Netflix, organized by difficulty. You would use this repository when preparing for software engineering interviews at companies that ask system design questions, or when you want to learn how large distributed systems work. The repository is a curated link collection, not runnable code, the listed language of Java refers to some embedded code examples in linked resources. Almost all content is free and links to external articles, blog posts, and videos.