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Software Engineer
- Introduction
- Fundamentals
  - DNS
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- Paradigms
  - Object Oriented Programming
- Principles
- Data Structures & Algorithms
  - Problem Solving Patterns
- Software Design & Architecture
  - Introduction
  - Design Patterns
    
    Introduction
    
    Architectural
    
    Creational
    
    Abstract Factory
    Builder
    Factory Method
    Prototype
    Singleton
    
    Behavioural
    
    Structural
    
    Adapter
    Bridge
    Composite
    Decorator
    Facade
    Flyweight
    Proxy
- Communication
  - gRPC
- Databases
  - Introduction
  - Relational
    
    Introduction
    Glosary
    
    SQL
    
    Introduction
    Joins
  - NoSQL
    
    Patterns
- System Design
  - Caching
  - messaging
    
    Message Queue
  - Overview
Frontend Engineer
- tailwindcss
  - Bag of tricks
Cloud
- azure
  - databases
    
    Azure SQL Database
  - Networking
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  - Virtual Machines
- Basic Concepts
- Models and service types

Decorator

Allows to wrap existing class

Real world analogy

Matryoshka