I'm a developer living in Mexico. I do a lot of apps with Android, iOS, Ruby and Django.
I mostly work with Ruby, but using other type of framework or language isn't a problem. I have lots of experience programming, so I feel comfortable working on cross-platform systems, as well as front-end and back-end development.
I have experience in mobile applications, and all the process that involves; from designing the app to marketing the app. I've worked with unity 3D development for mobile applications.