Back up solution

im looking for a program that is excatly like [login to view URL] what we are looking for is to have a software program that people can install on their computer that will interract with our web-backup. we will also give you the API we want a very basic back up that will have the capacity of making automatic backup using a scheduler. and upload and download files and folders. recommendation of programing language C sharp we will need the code of the project