Write some Software

I need a Roku developer who has much experience creating Roku Channels and Apps to help update and transfer our current Roku app to our hosting. Our previous developer is missing and no longer available. But our channel was being hosted by his server system. We have all the original code and program to upload. We would like to re-create the channel as private to make sure it still works the same using the old code. If so swap our existing Roku channel to our new pushing point. Must be familiar with how to navigate and submit channels.