I started collecting this list of projects when I was 15 years old and coded just for fun. It's my personal collection of achievements and shows the path I took regarding both software engineering (tech stack) and entrepreneurship. These are mostly toy projects though, for something more serious you may prefer to check my professional experience on LinkedIn.

Showing all projects. Show only most relevant projects.

WhatsApp Toolkit (WAToolkit)

Jan 2015 - May 2021

Open source project made in record time days after the announcement of the web version of WhatsApp. It is an extension to Google Chrome that improves the WhatsApp experience, and it is currently the best rated extension for WhatsApp Web world-wide in Google's extension store. It is my first open source project of certain importance, and I currently accept third-party contributions via GitHub. On May 2021 I made an exit from the project and sold it to another company. Its home page is watoolkit.com.

Ratings Preview for YouTube

Jul 2011 - Jun 2018

Personal project made using technologies and languages standard on the web: HTML5, CSS, and Javascript. It is an extension to different browsers (Google Chrome, Mozilla Firefox, Safari) and native application for mobile operating systems (iOS, Android, Windows Phone) that acted to complement the functionality of the popular video page YouTube. It had an average rating on its various distribution channels of around 4 to 4.7 stars out of 5, and more than 150,000 users, achieved with zero investment in promotion or advertising. It reported regular revenue through donations, as well as ad revenue from the mobile apps. On June 2018 I made an exit from the project and sold it to another company. Its home page is ratingspreview.com.

Publik Investment Engineering S.L.

Jan 2015 - Nov 2017

The foreign exchange market (forex) is the biggest market in the world with more than $5 trillion per day traded. Most of that volume is traded by automated pieces of software or Expert Advisors. So forex is basically a war-zone between trading robots that compete against each other for succulent profits. I decided to try and build my own Expert Advisor initially as a hobby, but I found some success and now I personally invest and accept third-party investments in this amazing world of code and mathematics. Finally, the project led to the foundation of the company Publik Investment Engineering, SL, together with a commercial partner, where we received an investment that exceeded €900,000, with the intention of establishing an Investment Fund. Finally and after unsatisfactory results in 2017, we decided to close, signing nevertheless a positive return of +67% from July 2015 to November 2017. Its presentation page was publik.ie but is no longer available.

Perpetuall Software S.L.

Jan 2014 - Dec 2014

Technological startup of which I am a partner and developer. It is the first business project in which I participate along with three other partners. Perpetuall is a mobile application that keeps your phonebook updated, so that if someone changes phone number or email, it is changed to his contacts automatically. I participated in the development of the native iOS and Android applications, as well as in the architecture and development of the backend. Check it on Twitter.


Jul 2010 - Aug 2012

Personal project developed in C#. NET. Windows application capable of interacting with the Spanish number one social network, Tuenti, which is devoid of a public API. The development was abandoned due to the lack of time and legal problems, but every day around 20,000 people used it regularly, and it has had about 200,000 downloads in two years. It has an associated website created with Wordpress, accessible from twentyspy.com.

Cocoon and CocoonJS

Jan 2012 - Jul 2012

Project in which I participated for Ideateca Factory S.A. They are two big projects, complex and interrelated. Cocoon is an integral multi-platform video-game development framework. CocoonJS is a service of Cocoon that allows you to run games developed with web technologies (HTML5 + CSS + Javascript) on mobile devices (iOS, Android) in a fully native way, using hardware acceleration, keeping the web implementation unchanged. I develop them as a team in multiple programming languages and environments, covering C, C++, Objective-C, Java, Android NDK, HTML5, CSS and Javascript. To be highlighted that it was my first introduction to many of these technologies. It supposed a great challenge and even greater learning. Currently both products are fruitful and CocoonJS is gaining notoriety in the international markets, including Silicon Valley. You can find information on these two technologies in the website: ludei.com (Ideateca operates with the name of Ludei in the United States).

Google Plus And Circles

Jun 2011 - Aug 2011

Personal project, blog type website made with Wordpress, based on an existing template but with a custom design made for the occasion for learning purposes. Worked PHP, HTML, CSS, MySQL, SEO, server and domain settings etc. It also has integration with social networks. It has no content but it was hosted on googleplusandcircles.com until I decided to close it because Google Plus was discontinued.


Feb 2011 - Jun 2011

University project developed with several different technologies (C, C++, Java, C#, Python). Fully multi-platform PDF file viewer based on the Sumatra PDF open-source project. It adds the ability to make annotations on any PDF and keep it synchronized in real time with other people (e.g. for common note taking among several people in a class). It consists of the client application, the files server, and the synchronization server. We specified our own textual and binary protocol for communication between all parties and got a load balanced, fully distributed and scalable design. Mark awarded: 100/100.


Feb 2010 - Jun 2010

University project developed in Ruby On Rails and C#. NET in a team of 6 people consisting of an online social network for sharing all types of multimedia and a desktop application for image, audio and video editing. It meant a lot of research on the world of edition libraries such as ffmpeg. Furthermore, both systems were connected through a web API. Mark awarded: 100/100.

Microsoft Word plugin

Mar 2010 - Jun 2010

Project done in Gizerbitek S.L. for the Basque Centre for Terminology and Lexicography (UZEI). It integrates the linguistic engine made by UZEI into Office Word, to make lexical and semantic spelling correction available to users. It incorporated a license activation system designed for the occasion. The collaborative work between the two companies to be highlighted.

Assistance module

Mar 2010 - Mar 2010

Project done for Gizerbitek S.L. with ASP.NET, it is a module for the DotNetNuke web content management system. It allows the reuse in any website of a customer support system for businesses.

Technological Surveillance

Sep 2008 - Feb 2010

Project done for Gizerbitek S.L. with C# that monitors brand names for enterprises in different digital media (market research). When I joined the project a dozen of media were being monitored. I developed a dozen more, and then I proposed to develop a generic algorithm based on HTML container elements able to get useful information from the text subsections shown in Google results. The company liked the proposal, I was allowed to develop it, and currently the product "Technological Surveillance" is fruitful in Gizerbitek S.L. and monitors several thousand media every day thanks to my algorithm.


Sep 2009 - Jan 2010

University project developed in Java which is based on the installation of Google Apps at the University of Deusto. Lets teachers' class schedules, deliveries... to be kept synchronized with the custom calendars of the students in fully automatic way. There was also a version available for mobile phones. Mark awarded: 100/100.

Marker Editor

Feb 2009 - Jun 2009

University project developed in C++ and OpenGL, able to model a 3D space personalized with identificacion cards for Augmented Reality systems. In turn, the design can be exported to a format compatible with ARToolKit, the Augmented Reality library par excellence.


Jul 2008 - May 2009

Individual university robotics project consisting of the construction and programming of a small sumo robot. Once built and programmed I presented it to competition and got the title of Champion of the Basque Country of Mini-Sumo 2009. Watch it on YouTube.

Videoclub Manager

Feb 2008 - Jun 2008

University project developed in Delphi especially important because it was the project that earned me a job in Gizerbitek S.L. thanks to my programming teacher, who noticed the quality of the result and hired me in her company. Mark awarded: 100/100.

WRFD (Windows Remote File Downloader)

Jun 2006 - Sep 2006

Personal project done at the age of 17 in C#, with which I learned a lot about Visual Studio and .NET framework. It is a trojan developed for educational purposes, which consists of a server program and a client program, connected by means of reverse connection (using DynDNS) and capable of downloading files from hundreds of infected systems simultaneously. It also consists of other processes that prevent deletion and exploit Windows vulnerabilities. The trojan was designed to avoid detection and not to cause any damage or data loss to the victim, and included a remotely-controlled self-destruction system.

CPR's Nakasone Canions

Feb 2006 - Jun 2006

Personal project done at the age of 16 with VB6, 2D game based on a TV show with multiple game modes and visual effects.


Jan 2005 - May 2005

Personal project done at the age of 15, pure HTML website, but with third-party services such as blog-like ones, polls, forums, chat... about the school matters of Askartza, where I studied.