🏗️ System Design Learning Journey

Welcome to my System Design Learning Journey! 🚀
This repository documents my structured approach to mastering system design — from core fundamentals to designing scalable, distributed systems used by top tech companies.

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🎯 Objective

To become a System Design Expert capable of architecting high-scale, fault-tolerant, and efficient backend systems — essential for roles such as Backend Engineer, System Architect, or SDE-2/3.

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📅 Timeline

Start Date: June 2025
Target Completion: September 2025 (First milestone)

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🧠 Core Learning Areas

⚙️ System Design Fundamentals

• ✅ Scalability
• ✅ Load Balancing
• ✅ Caching
• ✅ Data Partitioning (Sharding)
• ✅ Database Indexing
• 🔄 CAP Theorem, Consistency, Availability, Partition Tolerance
• 🔄 Latency vs Throughput

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☁️ System Components

• ✅ Web Servers & Application Servers
• ✅ API Gateway
• 🔄 Content Delivery Networks (CDNs)
• 🔄 Relational vs NoSQL Databases
• 🔄 Message Queues & Event-Driven Systems (Kafka, RabbitMQ)
• 🔄 Object Storage (S3, GCS)

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🔐 Security & Reliability

• 🔄 Authentication & Authorization (OAuth, JWT)
• 🔄 HTTPS, TLS
• 🔄 Rate Limiting
• 🔄 Circuit Breakers
• 🔄 Health Checks, Failovers

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🔍 Monitoring & Observability

• ✅ Logging, Metrics, Alerts
• 🔄 Prometheus, Grafana, ELK Stack
• 🔄 Distributed Tracing

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📐 System Design Case Studies

System	Concepts Practiced	Status
URL Shortener (Bit.ly)	Hashing, DB Design, API Rate Limits	✅
Instagram Feed	Caching, Newsfeed Generation, Read-Write Balance	🔄
WhatsApp Chat System	Real-Time Messaging, Queues, Database Sharding	🔄
YouTube	Video Storage, Streaming, CDN	🔄
Uber Backend	Geo Indexing, Real-time Matching, Pub/Sub	🔄

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📚 Resources I'm Using

• Books

  • Designing Data-Intensive Applications — Martin Kleppmann
  • System Design Interview Vol 1 & 2 — Alex Xu

• Courses

  • System Design Primer (GitHub)
  • Grokking the System Design Interview (Educative)
  • High Scalability blog

• YouTube Channels

  • Gaurav Sen
  • Tech Dummies Narendra L
  • CodeKarle

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🛠 Tools & Platforms

• VS Code
• Draw.io / Whimsical (for architecture diagrams)
• Git & GitHub
• Postman / Swagger (for API testing)
• Apache JMeter / k6 (for load testing)

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🌐 Connect with Me

🔗 LinkedIn
🔗 GitHub
🔗 Linktree

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🚧 In Progress

• Building scalable system design diagrams
• Writing notes on each key component
• Practicing whiteboard interviews
• Participating in mock system design interviews

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📌 Final Goal

Secure an advanced engineering position where I contribute to designing backend systems at scale — and apply for top tech companies or research-based MS in Computer Science (2026).

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"First make it work. Then make it right. Then make it fast." — Kent Beck