Hi there, I am interested in this work. It looks like you're requesting a CRM type of software.
1. The applications will be hosted on AWS EC2 servers.
Ok, I have worked on this before.
2. Node JS will be the server language.
I have knowledge of this.
3. MySQL Vs/with MongoDB
I am an expert MySQL developer, knows MOngoDB as well
4. Front End framework?
Angular JS ?
5. Code Publishing