Jesús Carrera

Front End Developer



Ruffl Visit

Single-page admin area for restaurants made with Backbone.js, RequireJS, and other related libraries, communicating with a custom REST API. Responsive design with Bootstrap. Multi-server versioning and deployment with Grunt. Development of initial Unit Tests.

Backbone.js RequireJS Bootstrap Grunt OOP Javascript HTML5 jQuery CSS3 SCSS Compass


Ikea 25th Anniversary Visit

One page mini-site with custom animations, displaying different panels, like a slideshow or a map locator, optimised for smooth loading, regardless of the heavy image load, using JavaScript to load portions dynamically.

Agency: Lida

jQuery HTML5 CSS3 SCSS Compass

Forward Foundation

Forward Foundation Visit

Responsive design for the Forward Foundation, with support for desktop, tablet and mobile devices. Sinatra framework in the Back End, making use of several Social media APIs saving information to the no-SQL database MongoDB.

Agency: Forward Internet Group

jQuery HTML5 CSS3 SASS Media Queries HAML Ruby MongoDB


Barclays Corporate Visit

Adding video carousels and accordion drop downs to the Barclays corporate site, modifying a custom object oriented JavaScript library. The DOM manipulation was written in pure JavaScript.

Agency: LBi

OOP Javascript HTML CSS

O2 Health

O2 Health Visit

Redesign for the website O2 Health. The Back End was ASP.NET based and it had to be coded into Microsoft Visual Studio.

Agency: M&C Saatchi



Boots Christmas App

The portion I worked in was the video greeting. In this portion of the mobile application two quite different versions had to show depending if it is accessed from the app (mobile) or from the internet (desktop).

Agency: Lida

jQuery HTML5 CSS3 SCSS Media Queries Compass


Locaria Visit

This is a multi-language site with 2 components: Ruby on Rails site and WordPress blog. Both of them with support to RTL languages.

Agency: Forward Internet Group

HTML5 CSS3 RTL SASS Ruby on Rails WordPress

EGN Corporate

EGN Corporate Visit

Creation of their new corporate website over a Ruby on Rails framework, using the latests additions, like the new asset manager.

HTML5 CSS3 HAML SASS Ruby on Rails

O2 Emails

O2 Email Campaigns

Creation of several email campaigns for O2, including the launch of iPhone 5. All the designs complex graphic structures, challenging for the email medium. Every template was heavily tested in all the mayor email readers.

Agency: M&C Saatchi


Discover Ireland

Discover Ireland Visit

Integrate Flash headers with fallback HTML and add several new pages with jQuery animations.

Agency: LBi

jQuery HTML CSS Flash

Forward Corporate

Forward Corporate Visit

Style and content changes over a Ruby on Rails framework.

Agency: Forward Internet Group

jQuery HTML5 CSS3 SASS Ruby on Rails


Wordia Visit

Heavy-graphics design implementation using some of the advanced features of SASS to have a good code foundation for future changes



Givemondays Presentation Visit

Responsive presentation to be shown in different devices including phones, with custom scroll spy functionality. A simple Sinatra back end was deployed for easy updates and deployment.

jQuery HTML5 CSS3 SASS Media Queries Ruby Sinatra


Omio Visit

Closely working with the development team we completely changed the look and feel of the website and improved its performance more than 10x.

Agency: Forward Internet Group

jQuery HTML CSS Ruby on Rails WordPress


Barreto Corporate Visit

Development of custom WordPress theme, with custom posts for easy administration. Features HTML5 videos with WebM and MPEG-4 formats to ensure total cross browser compatibility.

WordPress jQuery HTML5 CSS3

O2 Priority

O2 Prioriy Visit

Various fixes in code, and updates in content. The code was in ASP.NET, in a MVC structure, and had to be coded using Microsoft Visual Studio.

Agency: M&C Saatchi



Vodafone Mobile Landing Page

Development of mobile-specific landing pages for a PPC campaign for Vodafone. They were using some mobile only features, and it was tested in different devices.

Agency: Forward Internet Group


Joaquim Barreto

Joaquim Barreto Portfolio Visit

Transformation of a Flash-based portfolio to a highly customised responsive WordPress theme, featuring HTML5 video in MPEG4 and WebM formats for cross browser compatibility.

WordPress jQuery Media Queries HTML5 CSS3 PHP


Jesús is a fantastic front end developer. His attention to detail and diligence makes him a pleasure to work with. Technically, his code is clean and done well, and is very up to date on the latest coding standards. We would not hesitate to have him work with us again

Tony Dong – Technical Lead at M&C Saatchi

His technical knowledge on JQuery, CSS is very good. Good communicator and nice to work with. I will recommend him on any project without a shadow of doubt and can give references

Saikumar Venketaraman – Senior Technical Consultant at LBi

I thought I’d email personally to say thanks for your support over the last few days. I really was impressed at how you fitted in and worked with the team – thank you!

Edward Baker – CEO at EGN

Jesús was a huge asset to our team. He provided expert development skills and a proactive best practice approach. Jesús is not afraid to learn new skills, contribute to ideas and built some truly innovative and advanced features that are still a big part of our site.

Matt Wheeler – Director at Omio

Jesús is a hard worker who knows his front end development cold. He is able to work in HTML, CSS and AJAX, and all the related technologies, creating clean semantic markup. He also has graphic design skills which he unleashed on occasion.

Lukas Oberhuber – CTO at Forward Internet Group


I have a wide technical and creative formation, specially oriented to the Internet world. Starting as Web Programmer gave me a solid base for programming skills, and continuing as Web Designer gave me a good understanding of aesthetics and usability.

Highly specialized in Front End Development, I pay attention to detail, worry about good performance, cross-browser compatibility, search engines, and code quality.

I’m used to work in an Agile environment with tight deadlines, being responsible for whole projects in some of the biggest Digital Agencies in the UK.

After start studying computers in 2000, I always was concerned about my continuous education, evolving and being updated in the sector news.

In every company I have been, I have responded satisfactorily, reaching the objetives and integrating myself in the team



  • HTML (5), HAML
  • CSS (3), SASS, SCSS and Media Queries
  • OO JavaScript, AJAX, JSON, jQuery
  • Ruby, Ruby on Rails, Sinatra
  • PHP
  • XML
  • Regular Expressions


  • Adobe Photoshop
  • Adobe Flash
  • Adobe Fireworks
  • Adobe Illustrator


  • Git, SVN
  • Capistrano
  • Apache, Nginx
  • MySQL, MongoDB
  • HTML5Boilerplate, Modernizr
  • Google APIs
  • Social Media APIs
  • Backbone.js, Require.js, Grunt.js, Node.js