System Design Interview
System design interviews test your ability to architect large-scale systems (designing Twitter, Netflix, Uber, etc.). Covers scalability, reliability, fault tolerance, consistency, availability, and technology choices. Used by tech companies for senior engineer and staff engineer interviews. Time to learn: 12–16 weeks of focused prep. Critical for landing high-paying roles at top tech companies.
What is System Design Interview
A system design interview is a technical interview where you're given a vague requirement (e.g., "Design a video streaming platform like Netflix") and must propose a system architecture. You clarify requirements, propose solutions, discuss tradeoffs (consistency vs. availability, latency vs. throughput), and defend your choices. It's about thinking like an architect, not a programmer: load balancing, databases, caching, messaging, monitoring, and scaling.
📋 Before you start
💰 Salary by region
| Region | Junior | Mid | Senior |
|---|---|---|---|
| USA | $150k | $220k | $350k |
| UK | $100k | $150k | $220k |
| EU | $110k | $160k | $240k |
| CANADA | $140k | $200k | $320k |
🎯 Careers using System Design Interview
❓ FAQ
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