I will build secure authentication and role permissions

I build a secure authentication and permissions flow for web or mobile products, covering the requested account states, session boundary, role checks and protected routes or API actions. The delivery can include sign-up or invite flows, password recovery, profile access, admin and member permissions, and a concise test matrix for the critical cases. I can connect an existing provider or work within your current backend. Please provide the user roles, required screens, provider constraints and existing API structure. Enterprise identity and complex organization hierarchies are quoted separately.