I have built REST API's before using Node.js and MongoDB.
My website: [login to view URL] is completely built on Node.js, [login to view URL] and MongoDB. You can also check out my GitHub profile: [login to view URL] where I have hosted a few REST based project repositories.
My resume: [login to view URL]
Since this is my first project on freelancer, I am providing a great discount.
Since, I have experience building API's using Node and Mongo before, I am confident that I can finish up the API in a week's time.
I can also provide work in your physical location if you're based out of Bangalore.