A lot of experience building IT systems. Last years specialized in web sites development with Ruby on Rails and its ecosystem of technologies. Goal: a company headed by true SaaS believers with a web/mobile product crafted by every specialist (back, front, UX, AI, design, marketing, business…) on a daily basis. Only this way we all could make it 'the one’.

Senior Ruby Developer @ Payzone UK Limited is a British branded consumer payments acceptance network that supplies payment terminals to small - medium size businesses. - Active contributor to the overall new system architecture. - Architect and developer of the internal API serving the Android app running on custom built hardware devices. - Direct integration with 3rd party APIs. - Remote system integration via RabbitMQ (AMQP) messaging solution. - Full test suite. - Continuos integration/deployment through TravisCI - Heroku Ruby 2.1, Rails 4, TDD, RSpec 3, Shoulda, Bunny (RabbitMQ), json-schema, OAuth2, APIs, Rabl, Draper, Versionist, WebMock, BCrypt, FactoryGirl, Git, Trello, TravisCI, Heroku... From November 2014 to Present (1 year 2 months) Senior Ruby Developer @ The Money Advice Service: government company to freely educate and assist people to better manage their money (investments, pensions, company budgets...) Short-term assignment as a Senior Ruby Developer to develop the CMS of their public website. Ruby 2.1, Rails 4, Comfortable-Mexican-Sofa, Cucumber, Capybara, Poltergeist, Rspec, Bower, Git, Slack, Target Process, Haml, Sass, ... From September 2014 to November 2014 (3 months) London, United KingdomRails Architect and Team Leader @ Ideas4all is the start-up of the social network of ideas as an innovation tool: - Complete re-architecturing of the site by splitting the monolithic web application into collaborating services. - Development of a services security system based in OAuth2 and an authorizator service. - We have written a set of gems that form the basic infrastructure for services to communicate each other. - Creating homogeneous, standardized ideas4all services and their ruby clients is now easy as pie even for new developers. - API development. Integration with external public services: Twitter, Facebook, IBM Connections, clients proprietary systems… - New features design, implementation and maintenance. Customizing our SaaS platform for major customers (Banco Santander, Repsol…) Ruby 1.8.7, 1.9.x and 2.x, Rails 2.3.5 and 4.x, Capistrano, Git, MySQL, Factory-Girl, Rspec, Spork, Guard, Shoulda, JavaScript, JQuery, Thinking Sphinx, OAuth1/2, APIs… From May 2012 to September 2014 (2 years 5 months) Madrid Area, SpainRuby on Rails Architect and Developer @ Informa D&B is the spanish leading internet supplier of economic and financial information of any single spanish company and through D&B, any company worldwide. Most of the spanish banks and big corporations use our information in a daily basis to make important decisions. As part of the IT department, we’ve been able to redefine, redesign and develop the company core system in record time thanks to the wonders of: - a completely new architecture defined and developed applying Scrum as agile methodology, - an advanced leading MVC framework such as Rails, - the OO and smart of the pushed to the limit Ruby functional programming features - additional cutting edge Rails ecosystem technologies (Git, Redis, Resque, Cucumber... and a lot more). I have been a key component of the team. As higher IT Manager said, my advise, analytical skills, refactoring/optimization ability and expertise have been crucial to achieve the final goal. From March 2011 to May 2012 (1 year 3 months) Rails Developer @ Working part-time as CTO and Ruby on Rails developer in a start-up offering SaaS services to the Sports sector. The product is being developed using Ruby on Rails and lots of technologies next to it (MySQL, MongoDB, Mongoid, Devise, Resque, Redis, Git, CarrierWave...) From June 2010 to 2012 (2 years) Software Engineer @ IT Project Manager Financial Systems Analyst Artificial Intelligence - Expert Systems Analyst & Developer C++ & LISP Programmer Union Fenosa is a multinational company based in Madrid, focused in the production and distribution of electric power in Spain and several Latin American countries. It also has a lot of subsidiaries specialized in IT services, Gas, Engineering, Treasury and Financial Services, etc In my 15 years working for Union Fenosa, I have held various positions, most of them related to IT. I started programming in Common Lips two expert systems designed together with Carnegie Mellon University in Pittsburgh (USA) for treasury optimization. I learned a lot of functional programming skills, design patterns, OO ways to architecture and organize applications as well as gained team-work abilities that lead me to later positions as team leader, IT Expert and Consultant in Soluziona (Union Fenosa’s subsidiary in IT services), project manager of several internal projects for the whole business group, etc. In the last years I worked as middleman between IT - Treasury departments, reengineering processes in the last one, gathering functional requirements and transforming them into specifications for the new systems to be developed by the IT teams, being at the same time the projects owner and technical advisor. From October 1993 to January 2009 (15 years 4 months) IT Expert and Technical Coordinator @ Consultant and technical man representing UF to collaborate with Wisdom Tech personnel to adapt Union Fenosa's expert systems to the US market. From February 1999 to May 1999 (4 months) IT Technical Intern at the company @ Just after graduating in Computer Science at the University of Granada I started this internship in Puleva. As member of the IT Department, I was admin of a local area network, programmer of some UNIX scripts, company own software and new hardware installer... From September 1992 to December 1992 (4 months) Teacher @ I gave some Office - DbaseIII - DOS courses to the personnel at the National Geografical Institute of Granada. I also was a teacher of a computer programming course in the Salvador Academy of Granada. I worked as a freelance teacher to several of Computer Science students at the University of Granada in some of the subjects I had excelled: databases, C programming, Calculus, Algebra... From 1990 to 1991 (1 year)

BSc (Ingeniería), Computer Science (Informática) @ Universidad de Granada From 1987 to 1991 Lorenzo Tello is skilled in: Ruby, Ruby on Rails, SASS, HAML, ActiveRecord, Git, jQuery, TDD, Scrum, Agile Project Management, Web Development, RSpec, Team Leadership, MySQL, JavaScript Libraries