Okta/Auth0 Authentication and SSO Setup

Our production web application already has a mature code-base, but access control is still handled in-house. I now want to transition everything to industry-standard identity providers—Okta and Auth0—to harden security and simplify user management... (Budget: ₹100 - ₹400 INR, Jobs: API, Cloud Security, Node.js, REST API, Security, Software Development, Software Engineering, Web Security)