Low & High Level System Design
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Low Level System Design
Low Level Design Basic Building Blocks
Learn core LLD concepts like inheritance, association, composition, aggregation, with a quick quiz to test understanding.
SOLID Principles
Understand SOLID principles to design clean, scalable, and maintainable systems, with a quiz to reinforce concepts.
Creational Design Patterns
Learn object creation patterns like Factory, Builder, Singleton, and more, with a quiz to test understanding.
Structural Design Patterns
Learn patterns like Adapter, Decorator, Facade, and Bridge to structure flexible systems, with a quiz to test understanding.
Behavioural Design Patterns
Understand interaction-focused patterns like Command, Observer, State, and Strategy, with a quiz to test concepts.
LLD Topics
Pizza factory
Design a Pizza Factory system from requirements to diagrams, code implementation, and interview Q&A.
SQL Query builder
Design an SQL Query Builder from requirements to diagrams, code implementation, and interview Q&A.
Logger
Design a Logger system covering requirements, diagrams, code, and interview Q&A
Car Price Calculator
Design a Car Price Calculator from requirements to diagrams, code implementation, and interview Q&A.
Weather Station
Design a Weather Station system from requirements to diagrams, code implementation, and interview Q&A.
Ticket management system
Design a Ticket Management System from requirements to diagrams, code implementation, and interview Q&A.
Payment processor
Design a Payment Processor from requirements to diagrams, code implementation, and interview Q&A.
Elevator System
Design an Elevator System from requirements to diagrams, code implementation, and interview Q&A.
Car parking
Design a Car Parking system covering requirements, diagrams, services, logging, design patterns, and complete code implementation.
Introduction Video
Video - 00:00:55 mins
Use Case Diagram
Video - 00:3:44 mins
Class Diagram
Video - 00:6:07 mins
Class Diagram continued
Video - 00:5:30 mins
Services
Video - 00:9:57 mins
Parking Service
Video - 00:7:59 mins
Discussion on Parking Spots and Parking Service
Video - 00:8:13 mins
Activity Diagram
Video - 00:4:17 mins
Coding Part 1
Video - 00:34:45 mins
How to add Logging in the system
Video - 00:2:20 mins
Coding Part 2 (Adding Logging in the system)
Video - 00:6:03 mins
Implementing Parking pots using Decorator Design pattern
Video - 00:2:35 mins
Coding Part 3
Video - 00:12:12 mins
Requirements
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Identification of actors
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Use case diagram
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Class diagram
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QnA
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Activity Diagram
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Code
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Social media
Design a Social Media system from requirements to diagrams, code implementation, and interview Q&A.
WhatsApp
Design a WhatsApp-like system from requirements to diagrams, code implementation, and interview Q&A.
Amazon
Design an Amazon-like system from requirements to diagrams, code implementation, and interview Q&A.
PayPal
Design a PayPal-like payment system from requirements to diagrams, code implementation, and interview Q&A.
Assignment
Apply design patterns by implementing the Snakes and Ladders game end-to-end.
High Level System Design
High Level Design ( Building Blocks )
Learn core HLD concepts like scalability, consistency, caching, databases, real-time systems, and GenAI-enabled APIs.
What is HLD?
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Consistent Hashing
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Caching
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Load Balancing
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CAP Theorem
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Indexes
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Redundancy and Replication
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SQL vs NoSQL
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Data Partitioning
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Long Polling and WebSockets
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Retrieval Augmented Generation (RAG)
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Quorum
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Gen AI-enabled API Systems
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TinyURL
Design a TinyURL system covering requirements, capacity planning, APIs, databases, caching, scaling, and testing.
Introduction
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Requirements & Goals of the System
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Capacity Estimations & Constraints
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System APIs
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Database design & Schema
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High-Level Design
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QnA
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Purging & Db Cleanup
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Database Partitioning & Replication
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Cache & Load Balancing
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Test
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Rate Limiter
Design a Rate Limiter covering requirements, capacity planning, APIs, data storage, caching, scaling, and reliability.
Introduction
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Requirements & Goals of the System
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Capacity Estimations & Constraints
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System APIs
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Database design & Schema
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High Level Design
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QnA
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Purging & Db Cleanup
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Database Partitioning & Replication
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Cache & Load Balancing
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Typeahead suggestion (Google queries)
Design a Typeahead system covering requirements, capacity planning, APIs, data storage, caching, scaling, and reliability.
Introduction
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Requirements & Goals of the System
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Capacity Estimations & Constraints
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System APIs
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Database design & Schema
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High Level Design
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QnA
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Purging & Db Cleanup
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Database Partitioning & Replication
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Cache & Load Balancing
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Pastebin
Design a Pastebin-like system covering requirements, capacity planning, APIs, databases, caching, scaling, and reliability.
Introduction
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Requirements & Goals of the System
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Capacity Estimations & Constraints
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System APIs
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Database design & Schema
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High Level Design
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QnA
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Purging & Db Cleanup
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Database Partitioning & Replication
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Cache & Load Balancing
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DropBox
Design a Dropbox-like system covering requirements, capacity planning, APIs, storage, caching, scaling, and reliability.
Introduction
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Requirements & Goals of the System
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Capacity Estimations & Constraints
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System APIs
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Database design & Schema
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High Level Design
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QnA
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Purging & Db Cleanup
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Database Partitioning & Replication
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Cache & Load Balancing
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Instagram
Design an Instagram-like system covering requirements, capacity planning, APIs, databases, caching, scaling, and reliability.
Introduction
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Requirements & Goals of the System
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Capacity Estimations & Constraints
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System APIs
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Database design & Schema
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High Level Design
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QnA
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Purging & Db Cleanup
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Database Partitioning & Replication
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Cache & Load Balancing
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Messenger
Design a Messenger system covering requirements, capacity planning, APIs, databases, caching, scaling, and reliability.
Introduction
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Requirements & Goals of the System
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Capacity Estimations & Constraints
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System APIs
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Database design & Schema
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High Level Design
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QnA
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Purging & Db Cleanup
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Database Partitioning & Replication
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Cache & Load Balancing
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BookMyShow
Design a BookMyShow-like ticketing system covering requirements, capacity planning, APIs, databases, caching, scaling, and reliability.
Introduction
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Requirements & Goals of the System
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Capacity Estimations & Constraints
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System APIs
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Database design & Schema
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High Level Design
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QnA
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Purging & Db Cleanup
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Database Partitioning & Replication
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Cache & Load Balancing
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Uber/Ola
Design a ride-hailing system covering requirements, capacity planning, APIs, databases, real-time matching, scaling, and reliability.
Introduction
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Requirements & Goals of the System
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Capacity Estimations & Constraints
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System APIs
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Database design & Schema
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High Level Design
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QnA
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Purging & Db Cleanup
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Database Partitioning & Replication
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Cache & Load Balancing
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Newsfeed
Design a Newsfeed system covering requirements, capacity planning, APIs, databases, caching, feed generation, scaling, and reliability.
Introduction
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Requirements & Goals of the System
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Capacity Estimations & Constraints
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System APIs
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Database design & Schema
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High Level Design
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QnA
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Purging & Db Cleanup
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Database Partitioning & Replication
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Cache & Load Balancing
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Youtube/Netflix
Design a video streaming system covering requirements, capacity planning, APIs, storage, caching, scaling, and reliability.
Introduction
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Requirements & Goals of the System
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Capacity Estimations & Constraints
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System APIs
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Database design & Schema
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High Level Design
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QnA
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Purging & Db Cleanup
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Database Partitioning & Replication
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Cache & Load Balancing
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