How so? It's not like OPs been working with the team in question anyway. So there's going to be a learning curve, the least of which is probably standard library/syntax changes?
I am pretty new to rails, 3 years, and I haven't had any trouble finding work. Remote work is definitely not the easiest thing to find but it hasn't been that hard to find. Although I have a front end speciality which is much more in demand than traditional backend heavy developers right now.