Yes, we used Polymer to build the new ING banking portal. We had each component in its own repository which was kind of neat. I am doing React now and comparing both I think React is better, there is more support in the community. With Polymer all you basically have is the Polymer docs most of the times.
I plan to do the remote worker leap next year to travel around the world.. would be great if there was a who is hiring for only remote jobs.
Currently I work with three remote devs in the philipines and I can say the workflow is great. We have implemented a pretty solid git flow, and we use hip chat for communicating (hubot included).