Home System Design Low Level Design Design Patterns Build AI Agents Code Java Spring Boot Networking

Home System Design Low Level Design Design Patterns Build AI Agents Code Java Spring Boot Networking

Syllabus

Foundations

Course Overview
Prep Plan
Interview Delivery Framework
Core Concepts Map
Key Building Blocks
Pattern Catalog
Problems Roadmap

Building blocks

Back-of-Envelope Numbers
Networking Basics
API Shape & Contracts
Data Modeling Choices
Indexes That Matter
Caching Strategies
Sharding & Partitioning
Consistent Hashing
CAP & Consistency Tradeoffs

Reusable design moves

Write Path Scaling
Read Path Scaling
Hot Keys & Contention
Async & Background Work
Multi-Step Workflows
Large Object Storage
Live Updates & Fanout

Technologies in depth

PostgreSQL — Relational Workhorse
Redis — In-Memory Store
DynamoDB — Managed Key-Value
Cassandra — Wide-Column at Scale
Elasticsearch — Search & Analytics
Kafka — Distributed Event Streaming
Flink — Stream Processing
ZooKeeper — Distributed Coordination
API Gateway — Edge Entry Point
Time Series Databases — Metrics Storage
Vector Databases — Embedding Search
Big-Data Structures — Sketches & Filters
Realtime Delivery — Push Mechanics

Problem breakdowns

How to Use Problem Breakdowns
URL Shortener
Distributed Rate Limiter
Distributed Cache
Web Crawler
Job Scheduler
Metrics & Monitoring
Dropbox — File Sync
YouTube — Video Platform
Instagram — Social Feed
WhatsApp — Messaging
Uber — Marketplace Matching
Ticketmaster — Event Tickets
News Feed Ranking
Live Comments at Scale
Social Post Search
Collaborative Docs
News Aggregation
Yelp — Local Discovery
Tinder — Matching
Strava — Activity Feed
LeetCode — Contest Platform
Payments Pipeline
Robinhood — Trading
Online Auction
Ad Click Aggregator
Price Tracker
Gopuff — Quick Commerce
Top-K Videos
ChatGPT — LLM Serving

System Design

Syllabus

Foundations

Course Overview
Prep Plan
Interview Delivery Framework
Core Concepts Map
Key Building Blocks
Pattern Catalog
Problems Roadmap

Building blocks

Back-of-Envelope Numbers
Networking Basics
API Shape & Contracts
Data Modeling Choices
Indexes That Matter
Caching Strategies
Sharding & Partitioning
Consistent Hashing
CAP & Consistency Tradeoffs

Reusable design moves

Write Path Scaling
Read Path Scaling
Hot Keys & Contention
Async & Background Work
Multi-Step Workflows
Large Object Storage
Live Updates & Fanout

Technologies in depth

PostgreSQL — Relational Workhorse
Redis — In-Memory Store
DynamoDB — Managed Key-Value
Cassandra — Wide-Column at Scale
Elasticsearch — Search & Analytics
Kafka — Distributed Event Streaming
Flink — Stream Processing
ZooKeeper — Distributed Coordination
API Gateway — Edge Entry Point
Time Series Databases — Metrics Storage
Vector Databases — Embedding Search
Big-Data Structures — Sketches & Filters
Realtime Delivery — Push Mechanics

Problem breakdowns

How to Use Problem Breakdowns
URL Shortener
Distributed Rate Limiter
Distributed Cache
Web Crawler
Job Scheduler
Metrics & Monitoring
Dropbox — File Sync
YouTube — Video Platform
Instagram — Social Feed
WhatsApp — Messaging
Uber — Marketplace Matching
Ticketmaster — Event Tickets
News Feed Ranking
Live Comments at Scale
Social Post Search
Collaborative Docs
News Aggregation
Yelp — Local Discovery
Tinder — Matching
Strava — Activity Feed
LeetCode — Contest Platform
Payments Pipeline
Robinhood — Trading
Online Auction
Ad Click Aggregator
Price Tracker
Gopuff — Quick Commerce
Top-K Videos
ChatGPT — LLM Serving

How to Use Problem Breakdowns

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