Rubén Carmona Fortuño

Vila-real, Comunidad Valenciana, Spain·Available remotely

Backend: Node.js.Frontend: TypeScript.

Full Stack Developer: APIs, interfaces and deployment. I take products end to end, with a focus on clean, reliable code.

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Node.jsAngularTypeScriptExpressMySQLDockerGCPReactNext.jsSocket.IOMongoDBTerraformNode.jsAngularTypeScriptExpressMySQLDockerGCPReactNext.jsSocket.IOMongoDBTerraform

About me

Full stack developer based in Vila-real, working remotely since 2018. I've taken products from business requirement to production: backend in Node.js, maintainable interfaces in Angular and, more recently, in React too.

What I enjoy most is turning unclear requirements into products people actually use, with a focus on clean code and architecture decisions that hold up over time.

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Backend

Node.js
Express
REST APIs
PHP
Symfony
Python
Java
Elixir

Frontend

Angular 19
AngularJS
TypeScript
RxJS
SSR
React

Data

MySQL
MongoDB
Redis

Cloud & DevOps

GCP
Docker
Terraform
GitHub Actions
CI/CD

Experience

Mar 2023 - Aug 2026

Software Developer · The Revenue Labs

Remote

Multi-tenant (white-label) online booking platform used by more than 50 clients to sell ticket, hotel and train packages from their own domains.

Booking APIs and pricing/discount logic with rules by age, height and fare type.
Angular 19 frontend with SSR and full hydration on a single codebase serving dozens of brands.
End-to-end integration of the Redsys payment gateway, from checkout to transaction confirmation.
CI/CD with GitHub Actions and infrastructure on GCP (Cloud Run, Cloud SQL, Redis) with Terraform and Docker.

Node.js
Express
Angular 19
TypeScript
MySQL
RxJS
Redsys
Docker
GCP
Terraform

Jan 2023 - Mar 2023

Center Developer · NTT DATA Europe & Latam

Castellón · Remote

Full stack development on client projects: backend in PHP/Symfony and frontend in Angular.

PHP
Symfony
Angular

Apr 2022 - Jan 2023

Artificial Intelligence Developer · Anaimo

Valencia

AI software development, applying machine learning to real use cases.

JavaScript
PHP
Machine Learning

Apr 2018 - Aug 2019

CIO & Full Stack Developer · Arena Stack

Vila-real, Castellón

Technical lead and full stack development, taking part in architecture and product decisions.

Node.js
Elixir
Phoenix
Angular

Projects

Uplift

AI-assisted conversion optimization, with A/B testing

A tool for improving a website's copy: pick headlines, CTAs and benefits from the live page, let the AI generate on-brand variants, preview them on the page itself and run an A/B experiment to keep the one that converts best.

Variant generation with the Claude API and structured output validated with zod, plus a keyless demo mode to try it for free.
Deterministic rules on every variant (banned words, promises we can't make, length limits), whether it came from the AI or was written by hand.
pnpm monorepo with React 19 + Vite and NestJS + Drizzle + PostgreSQL; Playwright to read the pages, Docker Compose and CI on GitHub Actions.

React 19
NestJS
PostgreSQL
Drizzle
Claude API
Playwright
TypeScript
Docker

View live Code

WordWars

Real-time multiplayer word game with an ELO ranking

Turn-based online word game: each match sets a prefix and players race to chain valid words before time runs out. Includes a real-time versus mode, a daily challenge, solo practice and private link-based lobbies.

Real time with Socket.IO: turns, timers and word validation kept in sync across clients.
Account system with JWT and bcrypt, plus an ELO ranking that moves up or down with each match's result.
Express + MongoDB backend, Angular frontend; rate limiting and security headers with Helmet.

Node.js
Express
Socket.IO
MongoDB
Angular
TypeScript
JWT

View live Code

Let's talk

Open to new remote opportunities. Email me or reach out on LinkedIn and I'll reply within 24 hours.

Email me

Email LinkedIn GitHub