Hi carloshelena,
I have checked the details of your project "Desarrollar Software de Rastreo GPS" & have already worked on a similar project before and can deliver this as u have mentioned
Great expertise in Android, C Programming, Mobile App Development, PHP, Software Architecture
I can do this within your budget too $750 - $1500 USD
Thanks
General description
Develop a GPS tracking software, including Fleet manager and Logistics modules in merchandise