Hi Jose, Welcome to our community.
That is very good news, if you already have knowledge about an ERP system it will be easier for your to document Tryton.
Yes, we are interested on this idea. You can start getting familiar with the project by reading our contribution options. Once you get used to the process then you can pick any module from the list of pending and start working on it. Last and most important, make sure to include your proposal on the GSoD website so we can review it with the other candidates 