I have been rigorously working on NodeJS, ExpressJS and related frameworks eg Loopback, Sails. I have been CTO and founder for a Healthcare startup, Medd (Acquired by 1mg/Healthkart+), where the whole backend I developed on Node itself and where content uploading was highly required. Also, I have worked with IoT based startup, Leaf Tech in Node and XMPP.
This is the first time I have come on Freelancer as I have extra time now so this might be my first project here but I can assure you that I won't be a disappointment.