System Design Guide for Developers – 2026 Edition
Learn system design from scratch with simple diagrams and real interview examples. This guide is ideal for freshers, 1–5 YOE devs, and anyone preparing for backend / SDE / architecture interviews in 2026.
📘 Download Free System Design Basics PDF
Visual notes covering load balancers, caching, databases, queues, API gateways, rate limiters and high-level architectures.
Download Free PDF🧭 System Design Roadmap (Beginner → Intermediate)
- ✔ Basics – Latency vs Throughput, Horizontal vs Vertical scaling
- ✔ Networking – DNS, CDN, HTTP, TCP, REST APIs
- ✔ Databases – SQL vs NoSQL, Replication, Sharding
- ✔ Caching – Redis / Memcached, cache eviction, cache stampede
- ✔ Load Balancing – L4 vs L7, health checks
- ✔ Message Queues – Kafka, RabbitMQ basics
- ✔ Storage – Blob storage, file vs object vs block
- ✔ Design Patterns – Rate limiter, feed system, notification service
- ✔ Reliability – Replication, failover, retries, idempotency
- ✔ Observability – logging, metrics, alerts
📚 System Design Fundamentals
🎯 Common System Design Patterns (Asked in Interviews)
🌐 Microservices, API Gateways & Resilience
🎤 System Design Interview Preparation (2026)
💎 Premium System Design & Java Backend Bundles
Visual notes, diagrams & interview-focused PDFs. Perfect for Java backend & microservices interviews.
- 🔥 Java + DSA Complete Pack – with system design basics
- 💎 All-in-One Developer Starter Pack – Java + Python + DSA + System Design
