Core Data / SQLite DB sync with remote MySQL Database

Hello I have an existing iPhone app that is using Core Data to model a SQLite database. I would like to synchronize the SQLite database provided by Core Data with a remote MySQL database. I would like to create a web frontend using Ruby on Rails framework for manipulating the MySQL database so the users of the iOS app can manage their accounts using a web browser on any device. I am looking for someone who has experience with Ruby on Rails, Core Data, and Objective-C. MySQL and RestKit experience is a plus. Basically when a user manages their account with the web frontend I need to the MySQL database to be synchronized with the SQLite database on the iOS device, and vice versa (when a user manages their account and makes changes on the iOS device I need the changes to be reflected on the MySQL database.) Some of the functionality that needs to be implemented is create, read, update, and destroy records on the MySQL database. Also it would be preferred to expose an API to the iOS app so it can communicated with the MySQL database using RestKit. Feel free to send me a message / email if you have any questions.