10 Lessons
Intermediate to Senior Machine Coding
★ 4.99
(4,400+ Engineers Enrolled)
Low-Level Design (LLD) & Object-Oriented Machine Coding
SOLID Principles, Design Patterns, LRU Cache, Rate Limiter, Parking Lot & Elevator
⏱️ 50 Hours
📖 6 Modules
⚡ 20 Interactive Lessons
🏆 Free Verified Certificate
Complete Track Curriculum & Modules
Step-by-step interactive lessons with live browser compilers & coding assignments.
20 Lessons
1
3 Lessons
Module 1: Object-Oriented Principles, UML & SOLID Architecture
01. SOLID Principles Deep Dive with Real-World Refactoring Examples
⏱️ 45 mins
•
⚡ Interactive Sandbox
02. UML Class Diagrams & Sequence Diagrams for Big Tech Machine Coding Rounds
⏱️ 40 mins
•
⚡ Interactive Sandbox
03. Composition over Inheritance & The Open-Closed Architectural Principle
⏱️ 40 mins
•
⚡ Interactive Sandbox
2
3 Lessons
Module 2: Creational Design Patterns in Production
04. Thread-Safe Singleton Pattern (Double-Checked Locking & Bill Pugh Implementation)
⏱️ 40 mins
•
⚡ Interactive Sandbox
05. Factory Method vs Abstract Factory Pattern for Extensible Plug-and-Play Systems
⏱️ 45 mins
•
⚡ Interactive Sandbox
06. Builder Pattern with Method Chaining & Immutable Data Object Guarantees
⏱️ 40 mins
•
⚡ Interactive Sandbox
3
3 Lessons
Module 3: Structural Design Patterns & Object Composition
07. Adapter & Facade Patterns: Wrapping Legacy APIs and Third-Party SDKs
⏱️ 40 mins
•
⚡ Interactive Sandbox
08. Decorator Pattern: Dynamic Behavior Wrapping (Logging, Caching, Encryption)
⏱️ 45 mins
•
⚡ Interactive Sandbox
09. Proxy Pattern (Virtual, Protection & Remote Proxies) with Caching Layers
⏱️ 40 mins
•
⚡ Interactive Sandbox
4
4 Lessons
Module 4: Behavioral Design Patterns & Event Decoupling
10. Strategy Pattern: Pluggable Pricing, Payment Gateways & Routing Algorithms
⏱️ 45 mins
•
⚡ Interactive Sandbox
11. Observer / PubSub Pattern: Decoupled Event Emitters & State Sync
⏱️ 45 mins
•
⚡ Interactive Sandbox
12. Command Pattern: Undo/Redo Engine & Task Queue Serialization
⏱️ 45 mins
•
⚡ Interactive Sandbox
13. State Pattern: Order Lifecycle Management & Finite State Machines (FSM)
⏱️ 45 mins
•
⚡ Interactive Sandbox
5
3 Lessons
Module 5: Concurrency, Thread Pools & Lock-Free Design
14. Multi-Threaded Producer-Consumer Architecture with BlockingQueues
⏱️ 50 mins
•
⚡ Interactive Sandbox
15. Thread Pool Executor Implementation & Task Scheduling Engine
⏱️ 50 mins
•
⚡ Interactive Sandbox
16. Read-Write Locks, Mutexes & Optimistic Concurrency Control in Memory
⏱️ 45 mins
•
⚡ Interactive Sandbox
6
4 Lessons
Module 6: FAANG Machine Coding Live Case Studies
17. Machine Coding Case Study 1: Multi-Level Parking Lot System (Vehicles, Slots, Payments)
⏱️ 60 mins
•
⚡ Interactive Sandbox
18. Machine Coding Case Study 2: High-Concurrency Elevator Management System
⏱️ 60 mins
•
⚡ Interactive Sandbox
19. Machine Coding Case Study 3: Rate Limiter (Token Bucket, Leaky Bucket, Sliding Window)
⏱️ 60 mins
•
⚡ Interactive Sandbox
20. Machine Coding Case Study 4: Splitwise / Expense Sharing App with Graph Simplification
⏱️ 60 mins
•
⚡ Interactive Sandbox
Target Big Tech Roles
Google / Meta SDE-2
Senior Full-Stack Architect
Lead Backend Engineer
Skills You Will Master
- Production-Grade Clean Architecture
- V8 Internals, Memory Profiling & Leaks
- Time & Space Complexity Optimization
- Big Tech Behavioral & System Design Edge
Verified Digital Certificate
Complete all 20 lessons to earn a verifiable certificate with unique validation hash for LinkedIn.
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⚡
Live Interactive Sandbox
Test real-time code without installing Node, Python or C++ locally. Instant output in browser!
Launch Code Sandbox (8-in-1)