Roberto D.

## BIO Full Stack System Engineer with 20 years experience developing custom solutions for Telecom, Tourism, Booking , Marketing & Petroleum companies in multi-user, high-avaliability and web environments. Extensive knowledge in Web (PHP, Javascript, Bootstrap, JQuery, .NET), Payment gateways and Industrial Automation (HMI, Modbus), IoT (remote sensing, prototypes and firmware) and hardware control including Arduino, PLC, ESP32/ESP8266 , C++, sensors & pneumatics control. ##CERTIFICATIONS * Microsoft Certified Professional. * CMM certified on Software Requirements Management, Testing, Software Configuration Management & Software Quality Assurance. * SAP BusinessWarehouse certified. #LANGUAGES * Spanish (native) & English as second language . Actually learning Italian. #SECURITY * All work is strictly confidential, and code is delivered tested & documented. * Software developed using latest security practices/patches. * Avaliable to sign any NDA agreement ## EXPERIENCE * Full stack Web developer (backend expert) : PHP, ASP/HTML & Javascript , .Net , API/Json , Jquery, JSON/API and Bootstrap * E-Commerce Payment gateways developed for WooCommerce, Opencart & Magento , worked with NMI, [login to view URL] and Paypal. * C++, Arduino / PLC / ESP32 / ESP8266 / TTGO / Heltec * Industrial automation: sensors, HMI & software control, RS485 / RS232 / Modbus / HMI * Software testings & translations (localizations) * Client/desktop developer .Net (Vb.Net , C#) * Database developer: SQL Server , MariaDB & MySQL (also worked with Firebird & MongoDB) #TOOLS * Worked with Time Doctor, Slack, VS Code, Visual Studio, Arduino IDE, Atmel Studio and many others. #CUSTOMERS * 120 customers on 5 countries (USA, Spain, Venezuela, Chile & India), from simple single user up to millons-users solutions.