Greetings
As you have (probably) already seen while checking out my profile, my name is Adrian Gordon, I am from the island of Jamaica, and I have been working as a professional JavaScript developer for over 2 years. During this time, I have worked across a wide variety of frameworks, and have become quite proficient in both node.js and angular.js.
But enough about me, we are really here to talk about your needs.
Based on what I have read in your project proposal, my understanding is that you are looking for someone to develop a web-socket server for you (using node.js) that is able to receive data from a client, parse that data, and save data (presumably to a json file) in real time.
If this is indeed the case, I have done a project that was quite similar to this very recently (using node.js), and it should not take me more than a day or two to complete it.
I would love hear your thoughts and talk with you in more detail about your project. I am always online so feel free to contact me at any time!
More About Me - [login to view URL]
Past Node Projects:
Mobile Back-end in Node.js - [login to view URL]
Developed with Node + [login to view URL] - [login to view URL]
Mobile Back-end in Node.js - [login to view URL]