Full-Stack Developer for Directory Site

I'm seeking a skilled Full-Stack Developer to build and maintain a listing/directory website.

Key Requirements:
- Frontend: Next.js
- Backend: Node.js
- Database: PostgreSQL, MongoDB, or Firebase
- Experience with APIs & Authentication

Ideal Skills:
- Proficiency in Next.js, Node.js, and at least one database technology
- Strong background in building and maintaining web applications
- Familiarity with authentication mechanisms and API integrations

Please include past work in your application.