Help me Deploy a Python script for multiple users on cloud

I need help deploying a Python script for multiple users on the cloud. I am looking for an experienced freelancer who can provide me a secure, reliable, and cost-effective cloud architecture. The specific type of cloud architecture I need is a serverless architecture. Since this is going to be used by multiple users, I will also need a custom back-end for authentication and management. Most importantly, this needs to be completed in a timely fashion.
If you think you can help me with this project, please contact me as soon as possible. Thank you for your time and assistance.