Víctor Fernández

Full Stack Developer

I build software that solves real problems — from the architecture to the detail.

Over four years taking platforms from technical debt to modern systems, with TypeScript, Angular, Node.js and .NET under clean and microservices architectures.

4+
Years of experience
4
Countries in production
+15%
Faster API responses
The journey

Each project, a problem I learned to solve better.

2021 - 2024

Marketplace

Apprecio · Dcanje

I built a marketplace running in 4 countries, from the backend to the seller portal, helping define the product.

  • Developed the backend with Node.js under a microservices architecture.
  • Built the seller management portal with Angular.
  • Integrated the external Multivende operator and improved API response times by up to 15%.
Node.jsAngularMicroservicesTypeScript
2024

HR Platform

Base Dos

I contributed to an HR platform where code quality was non-negotiable.

  • Helped build a platform based on microservices with .NET and clean architecture.
  • Implemented unit, mutation and functional tests within a shared-QA model.
  • Modeled and accessed data with Entity Framework.
.NETC#Entity FrameworkTesting
2025 - Present

Efleet

VistaTI

I redesigned a fleet-management platform from scratch after years of accumulated technical debt, owning the architecture decisions.

  • Designed the Efleet 2 architecture (Angular 21 + .NET 10) to pay down the legacy system's technical debt.
  • Modernized the platform, migrating the frontend from Angular 9 to 20 and a Visual Basic backend to .NET 8.
  • Designed the authentication flow and built shared packages to standardize projects company-wide.
Angular.NETTypeScriptC#
What I master

Languages

  • TypeScript
  • JavaScript
  • C#

Technologies

  • .NET
  • Node.js
  • Angular
  • NestJS
  • React
  • Entity Framework

How I work

  • Clean architecture
  • Product vision
  • Autonomy & ownership
  • Teamwork