Cristian Sifuentes - DEV Community

Cristian Sifuentes

Mar 2

5 Underused C# Features That Make Defensive Code Obsolete

#dotnet #microsoft #ai #softwaredevelopment

4 min read

Cristian Sifuentes

Feb 27

The .NET Architecture Pattern That Looks Professional but Scales Like Trash (and What to Do Instead)

#ai #microsoft #softwaredevelopment #programming

3

7 min read

Cristian Sifuentes

Feb 27

Top 10 Emerging JavaScript Frameworks to Watch in 2026

#react #angular #frontend #ai

2

3 min read

Cristian Sifuentes

Feb 25

Conversational Development With Claude Code — Part 19: Course Summary — From Prompts to Contextual Engineering

#ai #programming #javascript #claudecode

1

6 min read

Cristian Sifuentes

Feb 25

Conversational Development With Claude Code — Part 15: Cost Control and Model Strategy in Claude Code

#ai #backend #claudecode #softwareengineering

1

4 min read

Cristian Sifuentes

Feb 25

Conversational Development With Claude Code — Part 14: Installing MCP Servers in Claude Code

#ai #backend #mcp #claudecode

4 min read

Cristian Sifuentes

Feb 25

Conversational Development With Claude Code — Part 18: Conversational Development with Context

#ai #claudecode #softwaredevelopment #programming

4 min read

Cristian Sifuentes

Feb 25

Conversational Development With Claude Code — Part 17: Integrating Claude Code into GitHub Pull Requests

#ai #claudecode #webdev #programming

1

3 min read

Cristian Sifuentes

Feb 25

Conversational Development With Claude Code — Part 16: Installing Claude Code in GitHub with Actions

#ai #programming #javascript #webdev

7 min read

Cristian Sifuentes

Feb 25

Conversational Development With Claude Code — Part 13: Integrating Ratings with the API (Full‑Stack Alignment)

#ai #api #tutorial #webdev

2

4 min read

Cristian Sifuentes

Feb 25

Conversational Development With Claude Code — Part 12: Implementing Star Ratings in the Course List (Frontend)

#ai #webdev #programming #frontend

1

4 min read

Cristian Sifuentes

Feb 25

Conversational Development With Claude Code — Part 11: Implementing Ratings in the Backend with Claude Code and Docker

#ai #claudeai #docker #backend

3 min read

Cristian Sifuentes

Feb 25

Conversational Development With Claude Code — Part 10: Database Migrations with Docker, Alembic, and Automated Tests

#docker #python #ai #claudecode

1

5 min read

Cristian Sifuentes

Feb 25

Conversational Development With Claude Code — Part 9: Building Specialized Sub‑Agents for Parallel Delivery

#claude #aiagents #architecture #productivity

4 min read

Cristian Sifuentes

Feb 25

Conversational Development With Claude Code — Part 8: Claude Code 2.0 + Sonnet 4.5

#claude #coding #productivity #architecture

1

5 min read

Cristian Sifuentes

Feb 24

.NET EF Core Should Be Your Default in 2026 — Not Dapper

#dotnet #entityframework #dapper #architecture

1

4 min read

Cristian Sifuentes

Feb 24

Repository Pattern vs Direct DbContext Usage in .NET (2026 Edition)

#dotnet #entityframework #cleanarchitecture #ddd

1

5 min read

Cristian Sifuentes

Feb 24

Stop Writing DI Constructors and Manually Registering .NET Services — Do This Instead (2026)

#dotnet #csharp #dependencyinjection #architecture

8 min read

Cristian Sifuentes

Feb 24

5 Things to Know About Migrating Angular Tests to Vitest (After Moving 20+ Repositories)

#angular #vitest #performance #javascript

1

2 min read

Cristian Sifuentes

Feb 24

Memory Leaks in Angular: The Silent Performance Killer

#angular #frontend #performance #webdev

1

3 min read

Cristian Sifuentes

Feb 24

Signals vs RxJS Under Heavy Load: Performance Comparison in Angular 21+

#angular #rxjs #architecture #performance

3

2 min read

Cristian Sifuentes

Feb 24

Tailwind CSS v4 Standalone in Blazor WebAssembly --- A Clean, Native Integration for the .NET Ecosystem

#dotnet #blazor #tailwindcss #architecture

2

4 min read

Cristian Sifuentes

Feb 24

Angular Signals Explained Like a Senior Developer (Angular 21 Perspective)

#angular #frontend #ai #softwareengineering

1

3 min read

Cristian Sifuentes

Feb 24

Programmatically Focusing Form Fields in Angular Signal Forms (v21.1+)

#angular #frontend #development #softwareengineering

2

2 min read

Cristian Sifuentes

Feb 24

13 Angular Concepts You Must Master Before Your Next Interview (2026 Edition)

#angular #frontend #ai #softwareengineering

1

7 min read

Cristian Sifuentes

Feb 23

5 Advanced Async Concepts That Make Sense Once You Understand the Runtime

#microsoft #net #async #backend

3

3 min read

Cristian Sifuentes

Feb 20

Angular for Senior Engineers: What You Need to Unlearn in Modern Angular (2026)

#angular #javascript #frontend #ai

2

3 min read

Cristian Sifuentes

Feb 20

Senior Angular Interview Questions (2026): Architecture, Signals, RxJS, and the Real Senior Bar

#angular #typescript #webdev #career

3

8 min read

Cristian Sifuentes

Feb 11

Conversational Development With Claude Code — Part 7: Designing Sub‑Agents for Planning (Meet @architect)

#claudecode #ai #architecture #programming

2

7 min read

Cristian Sifuentes

Feb 11

Conversational Development With Claude Code --- Part 6: Impact Analysis of a Ratings Feature

#claudecode #ai #architecture #backend

1

3 min read

Cristian Sifuentes

Feb 2

Conversational Development With Claude Code — Part 5: Full‑Stack Architecture Analysis

#claude #ai #softwaredevelopment #deeplearning

1

3 min read

Cristian Sifuentes

Feb 2

Conversational Development With Claude Code — Part 4: Context, Subagents, and the Discipline of Thinking

#claudecode #architecture #contextengineering #ai

3 min read

Cristian Sifuentes

Feb 2

Conversational Development With Claude Code — Part 3: Installing, Trusting, and Operating the Tool

#claudecode #devtools #softwareengineering #productivity

1

4 min read

Cristian Sifuentes

Feb 2

Conversational Development With Claude Code — Part 2

#claudecode #architecture #webdev #backend

4 min read

Cristian Sifuentes

Feb 2

Conversational Development with Claude Code for Real‑World Projects (Part 1)

#claudecode #ai #softwareengineering #webdev

1

3 min read

Cristian Sifuentes

Jan 23

Angular Forms in 2026 — Reactive vs Template‑Driven, Validation, Testing, and the Signal Era

#angular #typescript #webdev #forms

1

7 min read

Cristian Sifuentes

Jan 23

Angular Route & Query Parameters — Routing Internals for Production (2026)

#angular #typescript #routing #webdev

1

8 min read

Cristian Sifuentes

Jan 21

Angular Routing Internals — A Scientific, Production‑Minded Guide (2026)

#angular #routing #typescript #webdev

1

3 min read

Cristian Sifuentes

Jan 20

JavaScript Maps vs Sets — A Scientific, Production‑Minded Guide (2026)

#javascript #webdev #typescript #programming

1

6 min read

Cristian Sifuentes

Jan 20

Angular Signals & Debouncing — A Scientific, Production‑Minded Guide (2026)

#angular #programming #webdev #ai

3 min read

Cristian Sifuentes

Jan 20

Async Reactivity with Angular Resources — A Production‑Minded Guide (2026)

#angular #typescript #signals #rxjs

6 min read

Cristian Sifuentes

Jan 20

Angular Signals in Practice — A Scientific, Production‑Minded Guide (2026)

#angular #signals #rxjs #typescript

1

3 min read

Cristian Sifuentes

Jan 20

Angular rxResource Migration Guide — Fixing the `request` Error (Angular 20+)

#angular #typescript #rxjs #signals

1

2 min read

Cristian Sifuentes

Jan 19

Public vs Private APIs in ASP.NET Core — Branching the Middleware Pipeline (Production‑Minded, with a Smile)

#dotnet #aspnetcore #microsoft #softwaredevelopment

1

5 min read

Cristian Sifuentes

Jan 8

CQRS + Event Sourcing in .NET (C#) — A Production‑Minded Developer Guide (with a Smile)

#csharp #dotnet #cqrs #eventsourcing

2

1

7 min read

Cristian Sifuentes

Jan 6

How Large Language Models (LLMs) Work

#webdev #programming #ai #beginners

2

1

3 min read

Cristian Sifuentes

Jan 6

What Is a Neural Network? (From Math to Modern AI)

#webdev #programming #ai #beginners

1

3 min read

Cristian Sifuentes

Jan 6

Architecture and Internal Operation of Blockchain

#webdev #programming #ai #beginners

2

3 min read

Cristian Sifuentes

Jan 6

How a .ZIP File Works — Compression Explained with a Simple Example

#webdev #programming #ai #beginners

3

3 min read

Cristian Sifuentes

Jan 6

Videos: Containers, Codecs, and Protocols — How Motion Becomes Streamable

#webdev #programming #ai #beginners

1

3 min read

Cristian Sifuentes

Jan 6

How the .JPG Format Works Understanding Image Compression Through Human Perception

#algorithms #beginners #performance

1

3 min read

Cristian Sifuentes

Jan 6

Databases Explained — Beyond Excel Tables

#webdev #programming #ai #beginners

1

3 min read

Cristian Sifuentes

Jan 6

Files: Metadata, Headers, and Extensions — How Computers Really Understand Your Data

#webdev #programming #ai #beginners

3 min read

Cristian Sifuentes

Jan 6

Permissions, Process Levels, and Execution Privileges

#webdev #programming #ai #beginners

3 min read

Cristian Sifuentes

Jan 5

Differences Between Windows, Linux, and macOS

#programming #ai #webdev #beginners

3 min read

Cristian Sifuentes

Jan 5

Domain Names, DNS, and How to Get a .com — From Names to Infrastructure

#webdev #programming #ai #beginners

3 min read

Cristian Sifuentes

Jan 5

IP Addresses & the Internet Protocol — From Numbers to Global

#webdev #programming #ai #beginners

3 min read

Cristian Sifuentes

Jan 5

What Is an Algorithm and What Is a Programming Language?

#algorithms #programming #webdev #ai

1

3 min read

Cristian Sifuentes

Jan 2

GPUs: Graphics and AI Processors — From Pixels to Intelligence

#webdev #programming #ai #beginners

1

3 min read

Cristian Sifuentes

Jan 2

Phones and Their System on a Chip (SoC) — The Hidden Engine of Modern Devices

#webdev #programming #ai #beginners

2

3 min read

Writing Debut