User Sign-Up, Authentication, Save User Data, Get User Data service

We're looking for a Python developer to work on services that give our platform capabilities to let consumers sign-up, sign-in (supporting MFA), change credentials, store and retrieve their data (from a database like MongoDB). If you have experience in creating user sign-up and sign-in capabilities for web and mobile apps then please get in touch. Our preference is Python, as well as developers with experience using 3rd party services such as AWS Cognito, Azure AD, Okta, Ping Identity, or a similar type of service.