My first job as Systems Engineer was on Unix, for 12 year I worked in a large moving company, I was responsible to create a team with 5 enginners and we developed a great system for the financial and accounting department, a CRM and a tracking system, that was awesome because it was my firts project doing a big software.And then I decided to creat my own company to develop software for many companies, at that time we started to work on windows, but in 2008 we changed to work only in a web enviroment due to I knew about PHP and in that momento I fell in love with PHP. I worked with my team in a project to create a great program to handle everything about employees for a company with more than 5,000 employees, the program handles personal and family data, payments, vacations, health system, loans, etc.In 2009 I had a good opportunity to work for the most important oli exploration company in my country developing a web system to control the bubget of the largest gas pipeline ever built in Colombia. I developed an accounting program, with all the processes, inventory, treasury, billing, accounts payable and receivable, payroll, At the same time we developed several programs for many different companies, all in the web enviroment.