Raúl F. Vallina - Software Engineer
Full-Stack developer and eCommerce API integration expert


Web Design & Development

Software Developments with eCommerce Integrations

Other Software Developments



My name is Raúl Fuente Vallina and I’m a Full Stack Freelance Software Engineer from Asturias (north of Spain). I love developing quality software and productive apps. My goal is to help customers to improve their business through flawless and elegant software solutions.


  • Node.js
  • Java
  • Spring Framework
  • AWS
  • Google Cloud
  • Heroku


  • jQuery
  • Angular
  • React


  • MongoDB
  • Redis
  • PostgreSQL
  • MySQL

ECommerce API's

  • eBay
  • Amazon
  • Shopify
  • BigCommerce
  • Weebly
  • Etsy

Throughout the centuries there were men who took first steps down new roads armed with nothing but their own vision

Ayn Rand

You will never do anything in this world without courage. It is the greatest quality of the mind next to honor

Latest articles

posted 05 Jun 2016 on Shopify eCommerce

Tips to Customize Shopify Themes

Whether you are changing the look of your theme or you are adding a new feature not supported by your current theme you have to make changes on your theme files. Shopify gives some recommendations to achieve this in this post.

Read on →

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