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.
Why does it matter?
✅ 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.
🧭 Whether you're a:
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.
👉 Save, share, and comment below if you want deep dives on any of these blocks.
Let’s make system design simple, and scalable.
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