Hi!
I've implemented several CRUD APIs with Node/Express and NoSql storage, and could do this job for you for a lot less than 750 CAD, if you're interested (maybe 300 CAD). I know for a fact that Amazon AWS has excellent support for Node, so that part shouldn't be a problem. As for testing, I've written great many tests in Jasmine for both front and back-end javascript, and am confident in my ability to deliver descriptive and robust test collections.
I have two questions about the specs:
* Do you want me to set up the server environment for you, or do you already have a server running?
* When you say that you want it to run on Linux, do you mean that you also want a Linux client in addition to the Node server, or that the server should run on Linux?
Hope to hear from you soon,
Tobias