Identity Server CAS OIDC Broker

We are seeking a skilled freelancer to develop an OIDC (OpenID Connect) server capable of delegating authentication to a CAS (Central Authentication Service) server. The OIDC implementation will be based on IdentityServer4. The primary objective is to establish a secure and efficient authentication mechanism within our system, leveraging the capabilities of both OIDC and CAS protocols. The ideal candidate should possess expertise in IdentityServer4 and have experience in integrating it with external authentication providers such as CAS. Additionally, familiarity with authentication protocols and best practices in web security is highly desirable.