A structured roadmap to master System Design from fundamentals → distributed systems → networking → scalability → real-world architectures.
This guide is designed for:
- Software Engineers preparing for System Design Interviews
- Developers building scalable production systems
- Engineers transitioning to Senior / Staff roles
Follow the sections in order. Each section builds on previous concepts.
Fundamentals → Databases → Caching → Distributed Systems → Networking → Scaling → Security → DevOps → Architecture Patterns → Real-world Design Problems
Do NOT jump randomly. System design knowledge is cumulative.
📍 Goal: Build strong foundation. Everything depends on these concepts.
These teach core system behavior, constraints, and tradeoffs.
These help design maintainable systems.
After completing this section, you'll understand:
- Why distributed systems fail
- Tradeoffs in consistency vs availability
- How production-grade systems are designed
📍 Goal: Understand how data is stored, scaled, and kept consistent.
This section is critical. Most interview questions revolve around this.
- Serializable Transactions
- MVCC
- Optimistic vs Pessimistic Locking
- Row Level Locking
- Distributed Locks
- Redis Lock
After this section, you'll understand:
- How large-scale databases work
- How data scales to billions of records
- How consistency is maintained
📍 Goal: Learn how systems achieve high performance.
Caching is asked in almost every interview.
After this section, you'll understand:
- How systems handle millions of requests/sec
- How to reduce latency
- How to prevent system crashes
📍 Goal: Understand how multi-server systems work.
This is the most important section for senior roles.
After this section, you'll understand:
- How distributed systems coordinate
- How failures are handled
- How data consistency works across servers
📍 Goal: Understand how services communicate.
Very commonly asked in interviews.
After this section, you'll understand:
- How internet works internally
- How traffic reaches servers
- How scaling works globally
📍 Goal: Learn how authentication and security work.
Read in order:
After this section, you'll understand:
- Authentication
- Authorization
- Secure system design
📍 Goal: Learn how systems run in production.
Read in order:
- Creating Docker Image
- Kubernetes ConfigMap
- Kubernetes Ingress
- Persistent Volume
- Prometheus and Grafana
After this section, you'll understand:
- How systems run in production
- Monitoring
- Deployment
📍 Goal: Learn real architecture patterns used in companies.
Read in order:
After this section, you'll understand:
- Real-world architectures
- How companies design scalable systems
📍 Goal: Apply everything learned.
Read:
After this section, you'll be able to design:
- YouTube
- Uber
- Distributed systems
After completing this roadmap, you will be able to:
✅ Crack System Design Interviews ✅ Design scalable systems ✅ Understand distributed systems deeply ✅ Work as Senior / Staff Engineer
Week 1–2 → Fundamentals
Week 3–4 → Databases
Week 5 → Caching & Performance
Week 6 → Distributed Systems
Week 7 → Networking
Week 8 → Security & DevOps
Week 9 → Architecture Patterns
Week 10 → Real Design Problems