Hello,
I can setup and configure your Ubuntu server and install NodeJS application. I did similar task many times, you may have a look my profile's review for similar work that is NodeJS application setup on Ubuntu server.
I am Sr. full stack developer & DevOps with 5+ years experience. I have experience in JavaScript, NodeJS, AngularJS, MongoDB, MySQL, PostgreSQL, Linux, Nginx, Apache, AWS, Git, etc.
Looking forward working with you.
Thanks