Free 145-page guide
System Design Roadmap for Backend Interviews
Stop jumping between disconnected diagrams. Follow a clear path through the concepts, decisions, and trade-offs that matter in a real system design interview.
145 pages · practical examples · free PDF
Know what to study—and in what order.
- Core building blocksAPIs, databases, caching, queues, load balancing, and the trade-offs between them.
- Scalability and reliabilityPractical patterns for handling growth, failures, bottlenecks, and changing traffic.
- Interview-ready thinkingA repeatable way to clarify requirements, defend decisions, and explore deeper trade-offs.
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After the roadmap
Turn the concepts into interview practice.
Use the Interview Question Library to find knowledge gaps, practice by topic, and track what you still need to revisit.
Practice interview questions