.NET Core Developer Topics

 

Advanced .NET Core Developer Topics (3+ Years Experience)

This document outlines key topics and skills that a .NET Core developer with 3+ years of experience should master. These areas build upon foundational knowledge and focus on advanced concepts, best practices, and real-world application development.

Core .NET Concepts

Dependency Injection (DI) ✅

  • Understanding DI containers (built-in and third-party like Autofac)
  • Service lifetimes (Transient, Scoped, Singleton)
  • Best practices for DI in large applications
  • Custom service registration and resolution

Middleware ✅

  • Creating custom middleware components
  • Middleware pipeline ordering and execution
  • Exception handling middleware
  • Performance monitoring middleware

Configuration and Options Pattern

  • Configuration providers (JSON, environment variables, Azure Key Vault)
  • Strongly-typed configuration with IOptions
  • Configuration validation
  • Environment-specific configurations

ASP.NET Core Frameworks

ASP.NET Core MVC ✅

  • Advanced routing techniques
  • Custom model binding
  • Action filters and result filters
  • View components and partial views

Web API Development ✅

  • RESTful API design principles
  • Content negotiation
  • API versioning strategies
  • OpenAPI/Swagger integration

Razor Pages

  • Page handlers and routing
  • Model binding in Razor Pages
  • Anti-forgery tokens
  • Tag helpers

Data Access and ORM

Entity Framework Core ✅

  • Advanced querying with LINQ
  • Performance optimization (lazy loading, eager loading, explicit loading)
  • Database migrations and seeding
  • Raw SQL queries and stored procedures

Database Design

  • Normalization and denormalization
  • Indexing strategies
  • Database-first vs Code-first approaches
  • Handling concurrency conflicts

Security

Authentication and Authorization ✅

  • JWT (JSON Web Tokens) implementation
  • OAuth 2.0 and OpenID Connect
  • Role-based and policy-based authorization
  • Claims-based identity

Security Best Practices

  • Input validation and sanitization
  • Cross-Site Scripting (XSS) prevention
  • Cross-Site Request Forgery (CSRF) protection
  • Secure coding practices

Performance and Scalability

Caching Strategies

  • In-memory caching
  • Distributed caching (Redis)
  • Response caching
  • Cache invalidation patterns

Asynchronous Programming

  • async/await patterns
  • Task-based operations
  • Avoiding common async pitfalls
  • Parallel processing

Profiling and Optimization

  • Memory management
  • CPU profiling
  • Database query optimization
  • Application monitoring tools

Microservices Architecture

Containerization

  • Docker fundamentals
  • Multi-stage Docker builds
  • Container orchestration basics

Service Communication

  • REST APIs vs gRPC
  • Message queues (RabbitMQ, Azure Service Bus)
  • Event-driven architecture

Distributed Systems

  • Circuit breaker pattern
  • Saga pattern for transactions
  • Service discovery

Testing and Quality Assurance

Unit Testing

  • xUnit and NUnit frameworks
  • Mocking frameworks (Moq, NSubstitute)
  • Test-driven development (TDD)

Integration Testing

  • Testing with TestServer
  • Database integration tests
  • API endpoint testing

Code Quality

  • Code coverage tools
  • Static analysis (SonarQube)
  • Code review practices

DevOps and Deployment

CI/CD Pipelines

  • Azure DevOps
  • GitHub Actions
  • Build automation

Cloud Platforms

  • Azure App Service
  • Azure Functions
  • Container deployment (AKS)

Monitoring and Logging

  • Application Insights
  • Serilog and structured logging
  • Health checks and diagnostics

Advanced Topics

Real-time Communication

  • SignalR for WebSockets
  • Server-sent events

Globalization and Localization

  • Culture-specific formatting
  • Resource files and localization

Background Processing

  • Hosted services
  • Hangfire for job scheduling
  • Azure WebJobs

API Design

  • GraphQL implementation
  • HATEOAS principles
  • API documentation

Soft Skills and Best Practices

Code Architecture

  • SOLID principles
  • Clean Architecture
  • Domain-Driven Design (DDD)

Agile Development

  • Scrum methodologies
  • Continuous integration practices
  • Code refactoring techniques

Team Collaboration

  • Git workflows
  • Code review processes
  • Documentation practices

This list represents core competencies for senior .NET Core developers. Focus on practical application and real-world scenarios when studying these topics.

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