Dear Romina S.,
I’ve read all of your requirements fully and I'm really interested in Node.js Expert for API & PostgreSQL Integration.
I have rich experience in Node.js, PostgreSQL, RESTful API and Express JS with over 9 years.
I am always ready to discuss more detail this project with you and I can start working immediately.
Looking forward to working with you soon.
For the best result and a long term in the future.
Regards,
Mikael.