Methods for managing multiple sessions for a user on a portal are disclosed. More particularly, hardware and/or software for managing multiple user sessions with backend applications of a portal are disclosed. Embodiments include a portal having a client interaction module for interacting with a user and a portlet application module for interacting with a backend application on an application server. A further embodiment provides a session manager for retrieving application session data from an application session data cache and inserting it into a user request, and for removing application session data from a content transmission from a backend application. In some embodiments, a session data cache for storing portal session data and application session data is provided. The session data cache may store application session data for each session established by a user with backend applications.