I had to be an Agro-economist engineer (I studied it from 1998-2003 with an engineer degree), but for more than 15 years, i'm working @95% as a data engineer. So, almost everyday i'm using SQL (MySQL/MariaDB, PostgreSQL-PostGIS), CPL (CSPro Programming Language), PHP, CSS, HTML, little Javascript and C/C++ do design Data Entry/Collection Application, Monitoring & Evaluation system, data processing system.