System Design Quick Guide
Source: Dev.to
System Design is the language of scale, and every engineer needs to speak it. I’ve created this 1-page Quick Guide to help you decode complex system design topics at a glance. ✅ Big tech interviews are incomplete without system design
✅ Real-world systems break if you ignore concepts like latency, replication, or retries
✅ And whether you're working on backend, infra, or cloud - system design is the glue that holds your solution together This visual distills everything into 5 core sections: 🧠 Core Concepts — From CAP theorem to vertical vs horizontal scaling
🧩 Key Components & Tools — Load balancers, databases, object stores, CDN, containers, service mesh
⚙️ Reliability & Fault Tolerance — Health checks, chaos testing, retries, failover logic
📊 Monitoring & Observability — Tracing, logging, metrics, dashboards
📐 Design Patterns — Circuit breaker, BFF, bulkhead, event-driven flows You’ll also find foundational system terms like rate limiting, cold start, session stickiness, service discovery, and more - all mapped for clarity. Developer preparing for interviews Tech lead managing architecture Or someone transitioning to system design This guide will help you think better, build smarter, and scale with confidence.
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