Javier Sanchez

Software Developer

London, United Kingdom

Work Experience


Manager, Global CRM Developer

September 2017 - Present City of London, United Kingdom


Lead Developer

Catalysis is a creative marketing agency, carrying out exciting, award-winning campaigns for large, global technology companies. During my short-period at Catalysis I worked on the accounts Autodesk, Intel, HERE and CA Technologies.

- Time-management and organizational skills
- Self-learning and self-starting
- Communication skills and a pro-active work-ethic
- HTML5, CSS and JavaScript
- Knowledge of client-side frameworks and libraries
- Creating performant, fast loading, responsive experiences
- HTML5 Banners and responsive email campaigns
- Working with back-end development using PHP
- Working with WordPress templating system and ACF
- Source control systems (Git) and build tools
- Managing AWS, DigitalOcean and Linode clouds using Debian 8
- Cross-browser compatibility & testing
May 2017 - September 2017 United Kingdom


Senior Digital Developer

Working independently and as part of a team to take visual design concepts and convert them into high quality interactive interfaces at Sky/Sky Studios. Developing, modifying and maintaining responsive HTML emails, banner suites and micro-sites. Working closely with the Account team to deliver effective cross platform/browser/device banner campaigns. Working with pre-defined templates and testing platforms to deliver effective digital advertising and Direct Mail email campaigns.

• Good understanding of HTML 5, CSS/3, JavaScript, JQuery
• Version control software (SVN / GIT)
• Testing software (Litmus / BrowserStack)
• HTML Email Build experience (Quantity and duration) in particular responsive email
• Adobe Photoshop and Adobe Illustrator (SVG creation and asset manipulation)
• Ability to turn concepts into a finished product
• Adobe Creative Suite of applications
• Ability to work well in a team environment, to collaborate effectively with key partners in other areas of the organization, to handle a heavy workload, to prioritize work, and to meet assigned deadlines
• Knowledge to proficient in Software Development techniques and processes focused on Graphic Design and/or Branding, including emerging practices and display platforms (e.g. mobile, social, AR, etc.) an advantage
• Knowledge to proficient in effective graphical user interface (GUI) and front-end Software Development practices, trends, and emerging technologies and devices.
September 2015 - May 2017 United Kingdom

Hello World Group

Mid-Weight Lead Web Developer

Responsible for web stack. Lead and Main web developer for agency-side and web architecture. My time working with Hello World Group has involved:

• Working on landing pages and marketing strategies for Watches of Switzerland
• Designing the new website strategy for Smiths Detection based on Joomla!
• Maintenance and development of modules for Joomla! and Magento
• System and server administration under Debian based systems
• Website performance improvement: Loading time, memory leaks, coding re-structure...

• Agile Software Development (SCRUM)
• Agency-side development (PHP, Laravel, Joomla, WordPress, Magento...)
• Front-End Development (HTML5, CSS, LESS, COMPASS)
• Database maintenance (MySQL, MariaDB and PerconaDB)
• Working with version control (GitHub)
• Administration of Web Servers (Debian based)
July 2015 - September 2015 London, United Kingdom


Technical Director

We export exclusive Spanish food, gourmet food products to England and East Europe. Spanish cheeses, Iberian ham, Olive Oil, tradicional and handmade products respecting traditional rules of quality which identify our cuisine and offering professional long term relationship with our partners and clients, based in trust and helping each other.
November 2013 - July 2015 London, United Kingdom

Cergis Software Ltd

Front-End Web Developer

Working as team player of a group of Front-End and Back-End developers. In charge of building several campaigns and designing platform that the user will love. My day to day at Cergis Software was:

• Design of e-mail campaigns for Sky, FCA, Alfa Romeo, Fiat, Fiat Professional, Abarth...
• Involved into the development of the platforms for Merlin Attractions Operations Limited
• Development of a multilingual WordPress platform for Dolphin Exhibitions Limited
• System and server administration under Debian based systems
• Learning .NET programming and website development under Umbraco CMS.
• Finding new business ideas like a platform to build responsive websites

• Agile Software Development (SCRUM)
• Agency-side development (WordPress and Umbraco)
• Front-End Development (HTML5, CSS, LESS, BOWER, NPM, Javascript)
• Working with version control (GitHub, Beanstalk and VisualSVN)
• Administration of Web Servers (Debian based)
February 2015 - July 2015 London, United Kingdom

B2C Finance Ltd

Full Stack Developer

During this time at B2C Finance my role was Full Stack Web Developer for client-side. The time that I've spent working there has involved:

• Working on the main development of Confused Debt a debt comparison website based on PHP
• Designing the new social media strategy for B2C Finance, Confused Debt and Confused About Debt
• Maintenance and development of modules for ExpressionEngine
• Administration an Ubuntu Cloud structure
• Implementation of a CDN and Digital Asset Manager
• Building microsites and landing pages

• Agile Software Development (SCRUM)
• Client-side development (PHP, CodeIgniter, ExpressionEngine, WordPress...)
• Front-End Development (HTML5, CSS, Javascript, JQuery)
• Social Media Management (Hootsuite, Buffer)
• SEO/SEM (Google Adwords, Content Building, Keywords Optimization)
• Database maintenance (MySQL)
• Working with version control (BitBucket)
• Administration of Web Servers (Ubuntu 12.04/14.04)
March 2014 - February 2015 Birmingham, United Kingdom


Group Facilitator

Development activities such as training courses, web development, video editing and maintenance of computer equipment and others tasks.
March 2012 - July 2012 Cantoria, Spain


Universidad Católica 'Santa Teresa De Jesús' De Ávila

Web Application Development, Higher Level

HTML5/CSS3 with latest techniques on Javascript and JQuery. PHP oriented to objects and management of SQL Databases.
2012 - 2013 Ávila, Spain

Rosa Navarro

Computer Technician, Computing, CFGM Sistemas Microinformáticos y Redes

Network service administration, single and network based system management. Installation and monitoriing of workstations and servers based on UNIX and Windows.
2010 - 2012 Olula del Río, Spain


English (Fluent),
Spanish (Native),


Adobe Campaign Manager, Ampscript, Campaign Monitor, CheetahMail, Craft, CSS, Email Development, ExpressionEngine, HTML, JavaScript, Kirby, Mailchimp, PHP, RWD, Salesforce Marketing Cloud, Umbraco, WordPress,