Loopback node.js API with MongoDB & web3 to access Ethereum network

We are building an application that will use an internal currency. Content creators get the currency for views & users get daily login bonuses, then the currency can be used to pay for premium services. All operations relating to this currency will take place via API and not in the application itself. We're using loopback to easily create the APIs, but we need someone to write the JS code to connect to the ethereum network via Web3, do calculations, etc. We have documented 13 API calls that the application will need to make. We'll also need you to set up 2 factor authentication via email with mailgun. We have 4 pages of well documented instructions for what each API needs to do. The basic solidity token is written using openzeppelin, but you may need to edit or extend that contract to fully service the needs of the API call. If this goes well, we have additional work for you.