Creating a microservice with an API on Node.js

Remote work for a web programmer. A Node specialist is needed to solve this problem:

We have:
1. VDS with Node and SSL support
2. huttarichard/instagram-private-api library

You need to implement an API on the server using Node.js for the following features of the Private API library:

1. Add/Delete accounts from the service (not from Instagram)
2. Set up a proxy for different accounts
3. Sending real-time POST requests to a given event URL:
3.1. New comment
3.2. New together in the direct with support for investments (photo, video)
3.3. New like, and who liked if this record is pre-listed on the likes tracking list
3.4. New Subscriber, if this option is active
4. Processing and responding to the success of the event in the form of JSON (or something else?) Responding POST to URL???) for the following service requests:
4.1. Send a comment to the post
4.2.Send a message to Direct, with support for the same attachments as in the application.

Plus, accordingly, the ability to manage all this through the API (implement some secure authorization). According to Node, maximum asynchrony, and efficient use of memory, so that during peak hours the server does not hang with the number of accounts 450 - 500. All requests are through SSL.

Write a budget and deadlines immediately.