Ad-hoc Ruby on Rails / JS work

I'm looking for a skilled Ruby on Rails developer. You'll also are skilled at HTML and Javascript, and absolutely must have a lot of experience and skill using bootstrap inside a RoR application. Finally, you must have your own (free) Google cloud project and a BigQuery instance (free but with billing enabled so all functions are enabled) - BigQuery experience is not needed. The work will be many small iterations of changes to an existing app and we'll communicate via Skype chat. Workload may vary, but I except about 10 hours per week. please indicate how many hours per week you may be available.