Skills: JavaScript, Node.js, PostgreSQL, Web Development, Software Development

[Enhance Security of FinTech SaaS App](https://freelancer.com/projects/40705682.html) Skills: JavaScript, Node.js, PostgreSQL, Web Development, Software Development JOB DESCRIPTION We are looking for an experienced full-stack developer to strengthen the administrative security and user-management capabilities of an existing production FinTech SaaS platform. Our application uses Node.js, TypeScript, PostgreSQL, REST APIs, and a React-based administration dashboard. This is a sensitive financial application, so we need someone who understands secure authentication, database consistency, audit logging, and privileged administrator operations. This is not a basic CRUD assignment. RESPONSIBILITIES The selected developer will: Build a persistent, case-insensitive email banning system. ...