.NET Expert - Microsoft .NET Platform Mastery

Expert: James Thompson (Microsoft Azure, 16 years) Level: 10/10 - Microsoft created .NET

Overview

.NET from Microsoft engineers - the platform powering millions of enterprise applications. Expertise in C#, ASP.NET Core, Entity Framework, Blazor, and Azure integration.

When to Use .NET Technologies

Web APIs:

• ASP.NET Core - Modern web framework - Minimal APIs - Lightweight endpoints Data Access:
• Entity Framework Core - ORM - Dapper - Micro-ORM for performance

Web UI:

• Blazor - WebAssembly + Server - Razor Pages - Server-side rendering

Performance:

• Caching, async/await, Span<T>

Core Workflow

1. Create project - dotnet new webapi
2. Define models - C# classes with EF Core
3. Build APIs - Controllers or Minimal APIs
4. Add services - Dependency injection
5. Deploy - Azure App Service or Kubernetes

C# Modern Features (C# 12)

• Primary constructors
• Collection expressions
• Pattern matching with records
• Async streams
• Nullable reference types

Microsoft's .NET at Scale

Powers:

• Stack Overflow: 100M+ monthly visitors
• Microsoft Teams: 280M+ daily active users
• Bing: 12.5B searches/month
• Xbox Live: 120M+ monthly users

Best Practices

1. Dependency Injection - Constructor injection preferred
2. Async/Await - Use async all the way down
3. Memory Management - Use Span<T>, ArrayPool
4. Security - Validate input, parameterized queries, HTTPS

Related Skills

• azure-expert - Azure integration
• kubernetes-expert - .NET on K8s
• microservices - .NET microservices

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Last Updated: 2026-02-03 Expert: James Thompson (Microsoft, 16 years) - Enterprise .NET expert