Streaming Platform Development

Hello,
I am looking for an experienced developer who can understand, maintain, improve, and further develop my existing project.
What is My Project?
My Project is a file hosting and sharing platform where users can upload files and generate shareable links.
The main concept is similar to a cloud-based file hosting service. Users should be able to upload files, store them on the server, and share them with others using generated links.
The platform already has an existing system and infrastructure, so I am looking for a developer who can first understand the current project properly and then continue its development.
Main Features / Functionality
Some important functionality of the platform includes:
File uploading
File storage and management
Shareable download links
Link conversion / generation system
File information and metadata
Upload time and update time handling
Direct access to uploaded files
User-friendly interface
Server and storage management
API and backend functionality
Security and access control
Performance optimization
Current Requirement
I need a developer who can:
Understand the existing codebase and project architecture.
Fix existing bugs and technical issues.
Continue development of new features.
Improve the backend and frontend where required.
Handle server-side functionality and storage efficiently.
Work with APIs and integrations if required.
Make changes without breaking existing functionality.
Clearly explain technical changes before implementing major modifications.
Help maintain and scale the project in the future.
Important Note
This is not just a one-time small task. I am looking for a reliable developer who can understand the complete ecosystem of the project and potentially work on future updates and improvements as well.
Before starting, the developer should preferably review the existing project structure, technologies used, server setup, and current functionality.
I can provide access to the existing project/codebase and explain the current workflow in more detail to the selected developer.
Please share:
Your experience with similar projects
Technologies you work with
Experience with file hosting/storage systems
Backend and server management experience
Previous relevant projects
Estimated availability and working process
The main goal is to find a technically strong and reliable developer who can properly take over and continue the development of my project.