System Design Interview Prep
Practise structured, defensible design conversations: a repeatable interview framework, back-of-envelope maths, the core building blocks and classic case studies, with the key numbers computed by small Python simulations you can run.
What you'll learn
- Run a system design interview with a clear structure: requirements, estimates, high-level design, deep dives and trade-offs.
- Produce quick back-of-envelope estimates for traffic, storage, cache size and availability.
- Explain and justify core building blocks: load balancing, consistent hashing, caching, sharding, replication and queues.
- Design for reliability with idempotency, rate limiting, retries with backoff and unique ID generation.
- Work through classic problems such as a URL shortener, news feed, web crawler, proximity service and chat system.
- Communicate trade-offs and bottlenecks confidently and follow a practice plan.