System design

This site’s full system-design curriculum (fundamentals → building blocks → HLD → LLD → deep dives) lives under /dsa/system-design. Use this page as a map: start here, then drill into the links that match your loop (phone screen vs onsite vs take-home).

System design curriculum (start here)

Learning order: fundamentals, building blocks, case studies, LLD, Kafka/Redis/Postgres deep dives.

Interview framework (RESHADED)

Step-by-step shape for any design question: requirements, estimation, API, data, scale, failure modes.

Core Concepts (System Components)

Databases, caching patterns, load balancers, CDNs, event streams, rate limiting, and fault tolerance.

Key Architectures (Popular Systems)

Deep-dives on real-world system designs like Twitter/X timeline, Netflix streaming, and Uber geospatial dispatch.

Trade-off Thinking & Approaches

Understand distributed systems trade-offs (Consistency, Latency, CAP/PACELC) and how to justify design decisions.

Checklists & Mental Models

Visual maps and step-by-step checklists to drive your HLD (RESHADED) and LLD (SOLID) processes.

Interview Prep Guide

Curated breakdown of books, courses, online platforms, suggested learning paths, and mock schedules.

Modern Scenarios (AI & Scale)

Deep-dives on LLM serving, GPU resource management, vector databases, AI safety guardrails, and massive P2P file distribution.

System design round playbook

Senior spoken arc: users → API → data → scale → failure → deep dive.

Master 90% syllabus (SDE3+)

Maps DSA + HLD/LLD + behavioral to this site—including React / Node / Next / AWS lanes.

Quick path by goal

Goal	Go to
First principles	CAP / PACELC, consistency models, latency vs throughput
Building blocks	API gateway, load balancer, caching, sharding, rate limiter
Case studies (HLD)	URL shortener, news feed, YouTube, payments — full list in curriculum
OOD / LLD	LLD exercises (parking lot, elevator, LRU cache, …)
Store internals	DynamoDB, Redis, Postgres, Kafka
Product stack + data	/databases (RDS, DynamoDB, caching, CDC/outbox), /backend, /performance
Ship & run	/devops (CI/CD, Docker, Kubernetes, AWS patterns)

How this fits the rest of the site

/system-design (this page)
      │
      └──► /dsa/system-design/...   ← primary content tree
      │
      └──► /interview/topics/...    ← round playbooks & syllabus
      │
      └──► /databases, /backend, /frontend, /performance, /devops
                 ↑ concrete AWS / Node / React trade-offs