First they did phone screening and then asked you to write a code and send them in a day or two.
And they will call for an onsite interview.
Onsite interview was scheduled with four people but as most of them were so I got to meet only one who was quite OK and asked about my projects and all. It was pretty much a 30 - 35 minute interview.
There was nothing as such most difficult, as it was all related to what your resume speaks about.
The following metrics were computed from 1 interview experience for the Proofpoint Support Software Engineer Intern role in United States.
Proofpoint's interview process for their Support Software Engineer Intern roles in the United States is incredibly easy as the vast majority of engineers get an offer after going through it.
Candidates reported having very good feelings for Proofpoint's Support Software Engineer Intern interview process in United States.