I don't have a portfolio, but I'd be happy to work on your prototype. As long as the instructions are clear and expectations are real, I see no problem in me getting the work done.
Yes, I do have a Github -> https://github.com/stefansinca
I'm from Romania, and why I want to intern as a junior? Because I don't have the necessary experience for a full-time position. It's kind of a loop, you need experience for a job, but you need a job to build experience.