Your name is pre-filtered by default to give you direct access to the jobs that interest you.
To see all the jobs and portals created by other members of your team, remove your name on the filter.
In the top left-hand corner of your screen, whether you're on the "Jobs" tab or the "Portals" tab, you'll need to uncheck the filter automatically applied to your First and Last Name in order to see all jobs and portals created by all members.