I’ve read your job description carefully. I think that I can do this project, because I already have an experiences with software development to use raspberry pi 3.
I have strong experience in these areas : Java, Android SDK, Swift, iOS SDK, Google App Engine, Backend and API development, Ruby on Rails, Google Cloud Datastore, Database (Oracle, MySql and Sqlite) and HTML5/CSS3.
I think that I can do your job well. Please let me know If you are interested in working together. Thank you. Justin.