Eloy Alonso

Available for full-time or freelance work, remote

Eloy Alonso

Full Stack Developer · Backend with Laravel, PHP and REST APIs

I build APIs and backends that connect systems, and I clean up legacy code without stopping what already works.

Santiago de Compostela · Madrid time, 9:00 to 17:00

Let's talkSee projects

About me

I've spent over two years building backends in PHP, first with CakePHP and now mostly with Laravel. I design MySQL databases from scratch, maintain them and, when they get slow, find out why. I've worked on new builds and on applications that were already in production and couldn't be stopped.

I don't tie myself to one stack. Learning new technologies is what I enjoy most about this job, and when a project calls for a language or tool I don't know well, I dig in until I can get real work out of it. That's how I ended up working with Node, Python and React Native, and porting a desktop app written in TypeScript and Rust to Android.

I'm into AI and automation, but only where they genuinely save time. Not because it's trendy.

What I can do for you

  • Backend and REST APIsLaravel and PHP to integrate systems that need to talk to each other without losing data along the way.
  • MySQL databasesDesign from scratch, maintenance and diagnosing slow queries.
  • Legacy codeMaintaining, optimising and refactoring production applications, one module at a time, with no downtime.
  • Custom CRMs, ERPs and websitesTools shaped around how the client actually works, not the other way round.
  • Automation and AITo get rid of repetitive manual processes, when it pays off.

Experience

  1. –

    Full Stack Developer · Invbit, Diseño y Desarrollo Web

    Santiago de Compostela

    CRMs and ERPs built from scratch, plus backends and REST APIs for several companies.

    • New features and optimisation work on the backend and APIs of a high-volume telecom operator: sales, line activations and product management.
    • PHP
    • Laravel
    • APIs REST
    • Docker
    • CRM

  2. –

    Developer · Sixtema

    Santiago de Compostela

    My first company. Development, project management and handling tickets and incidents across several areas.

    • PHP
    • CakePHP
    • MySQL
    • Python
    • JavaScript
    • Docker

Projects

2026 · Open sourceOpen source

Nuclear for Android

An Android port of Nuclear, an open-source music player that only existed for desktop, adapted and optimised for phones.

  • TypeScript
  • React
  • Rust
  • Tauri
  • Android

2024 · IoT / infrastructureConfidential

Water monitoring and legacy code cleanup

Management system for a whole region's wastewater plants, with real-time water quality data and years of legacy code to sort out.

  • CakePHP
  • PHP
  • MySQL
  • JavaScript
  • HTML/CSS

2025 · Small businessesConfidential

Custom CRMs and ERPs

CRMs and ERPs built from scratch for small businesses, shaped around how they actually work.

  • Laravel
  • CakePHP
  • PHP
  • MySQL
  • JavaScript
  • HTML/CSS

Stack and languages

Technologies

Backend
  • PHP
  • Laravel
  • CakePHP
  • Node.js
  • Python
  • APIs REST
Frontend
  • JavaScript
  • TypeScript
  • React
  • HTML/CSS
Mobile and desktop
  • React Native
  • Android
  • Tauri
  • Rust
Data
  • MySQL
Infrastructure
  • Docker
  • Linux
Other
  • IA
  • IoT

Languages

  • SpanishNative
  • GalicianNative
  • EnglishBilingual
  • PortugueseProfessional
  • RussianBasic

Contact

Got a project to kick off, something to maintain, or a manual process to automate? Get in touch.

Email meLinkedInGitHubArcMalt