"I'm delighted that I have a contract to the end of the season," Rosa has said.
"I came here immediately when I heard I had a chance to move to Hibernian.
"I came for the trial and did well I think and that is why I have been given a contract to show what I can do, so it was a successful trial.
"For some time now, I've not been playing in big games and that is what I'm looking forward to doing at Hibernian.
"I have been waiting for my chance and I hope now that I will take that."