The System Design Path
A structured progression through distributed systems engineering, module by module: from sockets and single-server bottlenecks to global consensus and fault tolerance.
Curriculum Flow & Prerequisites
Engineering Foundations
Sockets, Transport Protocols, Hardware & Network Demarcation
Infrastructure & Linux
Kernel Syscalls, Container Runtimes, Reverse Proxies & In-Memory Caching
Backend & Distributed Systems
Message Brokers, Event Streams, Replication & Partitioning
Production Engineering
Fault Tolerance, Graceful Degradation, Rate Limiting & SRE
System Design Stories
Production Architectural Blueprints & End-to-End Case Studies
Advanced Architecture
Multi-Region Active-Active Systems & Distributed Consensus
Engineering Foundations
Sockets, Transport Protocols, Hardware & Network Demarcation
Foundations of Networked Systems
Learn how clients and servers exchange data, multiplex sockets, resolve domain names, and establish transport invariants.
Deconstructing the fundamental communication paradigm that powers the modern internet.
Tracing a network packet from socket allocation to application dispatch and transport acknowledgment.
Hierarchical tree resolution, recursive resolvers, root servers, and TTL caching failure modes.
Infrastructure & Linux Runtime
How operating systems manage file descriptors, container isolation, and sub-millisecond in-memory caching.
Routing ingress traffic to ephemeral pods across cluster nodes.
Why epoll enabled the C10K concurrency breakthrough.
How container engines create the illusion of isolated operating systems.
Cache-aside, write-through, and thundering herd mitigation under traffic surges.
Distributed Systems & Concurrency
Asynchronous workers, message brokers, commit logs, database replication, and horizontal sharding.
Decoupling ingestion spikes from backend processing with message brokers.
Sequential disk I/O, consumer offset management, and at-least-once delivery.
Production Engineering & Reliability
Algorithms and architectural patterns that keep production clusters stable under extreme load.
Protecting upstream APIs from malicious surges and resource starvation.
Failing fast to preserve database health and prevent retry storms.
Real-World System Design Breakdowns
End-to-end architectural blueprints of production applications deconstructed step-by-step.
Base62 hashing, collision handling, distributed ID generators, and high-read caching.
WebSocket gateway pooling, ephemeral state management, and pub/sub routing.