Once you get access to the hiring portal you can browse all the available Internships & Jobs listed by the companies. You should complete your profile details before applying to the Internships & Jobs.
Below are the details of where can you apply for the Internship and jobs.
Step 1: Complete your profile first fill in all the asked details of your Education and work experience (Don't forget to add the Internship you have completed)
Step 2: Click on the hiring portal
Step 3: click on the Find Internships & Jobs
Step 4: Browse all the Internships & Jobs and start applying.