Signon PeopleCode

I need to modify certain user’s profiles when they sign on into PeopleSoft.  I need to control the roles that are attached to their profile as well as set the user’s profile permission lists.   The User Profile Map’s Optional User Properties allows me to set static values but doesn’t give me the flexibility I need.  I need to set the roles assigned when the user logs in; my understanding is that dynamic roles are applied through the batch process so a user’s profiles wouldn’t be updated until this process is run through process scheduler.