Deadline 30 December I have built a FastAPI backend for temporary file sharing using 6-digit PINs. The core upload and download functionality is working, but security, deployment, logging, background cleanup jobs, testing, and cloud storage support are missing or incomplete. I am looking for a freelancer to upgrade this project, add proper security features, complete the missing modules, and make the system production-ready, including Docker setup and environment configuration. I have attached three files related to this project. Please read them carefully to understand the current implementation and scope. Priority will be given to freelancers with strong backend and FastAPI experience. Please share your GitHub, LinkedIn, or any other links that demonstrate your relevant experience and skills.