Continue SaaS ERP Development

I am already more than halfway through building a multi-tenant ERP platform offered as SaaS. The current stack is React on the front-end with a Node.js (Express) API, and subscription payments are flowing through an integrated payment-gateway module... (Budget: $250 - $750 USD, Jobs: AngularJS, Backend Development, Frontend Development, JavaScript, Node.js, NoSQL Couch & Mongo, REST API, SaaS)