Modern Secure Fintech Web Platform

I’m building a fully-featured fintech website and need an experienced developer to take it from concept to production. The platform must let end-users create an account, sign in with a traditional email-and-password flow, and then manage their finances through an elegant, mobile-responsive interface... (Budget: $250 - $750 USD, Jobs: CI/CD, JavaScript, Next.js, Node.js, NoSQL Couch & Mongo, PostgreSQL, Python, Web Security)