High Level Design

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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
ACID Transactions

Reusable design moves

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

Tech Deep Dives

Open course →

HLD Interview Questions

Open course →

High Level 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
ACID Transactions

Reusable design moves

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

Tech Deep Dives

Open course →

HLD Interview Questions

Open course →

Prep Plan

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