.NET

CAP Theorem, ACID, and Choosing Between SQL and NoSQL in .NET with AWS and Azure

Introduction Choosing the right database is one of the most critical architectural decisions when building modern .NET applications (or any application). Whether you deploy to AWS or Azure, your ...

Posted by Rodrigo Castro on August 12, 2025

Understanding Big O Complexity in C#

Introduction Big O Notation is a fundamental concept in computer science and a common topic in coding interviews. It describes how an algorithm performs as the input size grows, focusing on time c...

Posted by Rodrigo Castro on August 4, 2025

Linus Torvalds’ Rules of Programming Applied to C#

Clean, efficient, and pragmatic code

Linus Torvalds, creator of Linux and Git, is known for his blunt wisdom about writing good code. Though his advice emerged from systems programming in C, many of his principles remain highly releva...

Posted by Rodrigo Castro on July 4, 2025

Interview Questions: Routing, Middleware and Razor vs. Razor Pages

Understand routing, middleware, dependency injection, and more

If you’re preparing for a .NET developer interview, these are five fundamental ASP.NET Core questions that appear regularly. Here’s a breakdown with added depth, like you’d expect in a real-world s...

Posted by Rodrigo Castro on June 27, 2025

Interview Questions: Configuration, Dependency Injection, and Hosted Services

Understand lifetimes, appsettings layering, and background tasks

Continuing our series on ASP.NET Core interview essentials, let’s dig deeper into five important topics that deal with how your application is configured, structured, and executed. How does appset...

Posted by Rodrigo Castro on June 27, 2025

What's New in .NET 9

New Features Overview

.NET 9 is here: and it’s not just a version bump. Microsoft continues to push the platform forward with meaningful updates that empower developers to build faster, smarter, and more cloud-native ap...

Posted by Rodrigo Castro on June 6, 2025

Clean Architecture in C#

Build maintainable, testable .NET apps

Clean Architecture organizes your code into layers for long-term maintainability. 🏗️ Layers Domain: Business logic (core) Application: Use cases and business rules Infrastructure: Database...

Posted by Rodrigo Castro on February 23, 2025

Domain-Driven Design (DDD)

Model complex business logic with DDD

Domain-Driven Design (DDD) helps you model complex business problems clearly and maintainably. 🏢 What is DDD? Focuses on the domain (the core business logic). Uses a ubiquitous language: sha...

Posted by Rodrigo Castro on February 22, 2025

Automated Integration Testing

Test how components work together

Integration tests check that different parts of your app work together as expected. 🧩 What is an Integration Test? Tests multiple components together (e.g., API + database) More realistic th...

Posted by Rodrigo Castro on February 21, 2025

Behavior-Driven Development (BDD) Testing

Write tests that describe behavior

Behavior-Driven Development (BDD) helps you write tests in plain language, focused on how users expect your app to behave. 📝 What is BDD? Tests are written as scenarios in plain English. Enc...

Posted by Rodrigo Castro on February 16, 2025