Cross-Platform Document Upload MVP

I need a Minimum Viable Product (MVP) for a web and mobile app that facilitates document uploads between brokers and clients.

Key Features:
- Mobile app support for both iOS and Android
- Secure account management: user registration/login, profile management, password recovery
- Document upload capabilities for PDFs, Word documents, and images (JPEG/PNG)

Ideal Skills:
- Experience with mobile and web app development
- Strong background in secure user authentication and document handling
- Familiarity with both iOS and Android platforms

Looking forward to your proposals!