I applied through college or university. The process took 4 weeks. I interviewed at Proofpoint (Sunnyvale, CA) in Nov 2017
Interview
I applied on SJSU Handshake (college career portal) and received a random phone call a couple weeks later. Luckily, I wasn't in class so I was able to answer it. It was a mini-on-the-spot interview asking why I wanted to work there, what I would be able to contribute, and if I was familiar with the job description. The recruiter seemed satisfied with my answers so I was given a phone screening for the week after.
The phone screening was about an hour long. The hiring manager asked me about my previous experience and projects and asked some basic algorithm and data structure questions. A few days later, I received a call from a recruiter informing me I was moving forward in the interviewing process. We scheduled an on-site bulk-interviewing day for the week after.
There were 4 interviews with 4 different engineers. Each interviewer asked about my previous experience and projects and gave me some sort of whiteboard question. It all went smoothly. The whole process took around 3 hours. The recruiter was quick to respond to emails and was able to answer all my questions. Got an offer a couple weeks later.
Interview questions [1]
Question 1
NDA: basic algorithms and data structure questions.
Took nearly 2 months, 1 call with recruiter, 1 call with hiring manager (slightly technical), 1 call with staff engineer and 2 seniors, 1 more in person interview with 2 senior AI engineers.
I applied online. I interviewed at Proofpoint (Fort Collins, CO) in Apr 2026
Interview
Did a two hour coding project which was cool, for the initial job screening. It involved creating a app in C# and seemed to go pretty well. However the ghosted me after doing it, followed up on three separate occasions no response.
I applied online. The process took 1 week. I interviewed at Proofpoint (Toronto, ON) in Jun 2025
Interview
I had an interview with a recruiter. It was a typical HR interview and it lasted about 30 minutes. Unfortunately, I was ghosted even after I sent a follow-up email.
Software Engineer applicants have rated the interview process at Proofpoint with 2.8 out of 5 (where 5 is the highest level of difficulty) and assessed their interview experience as 38% positive. To compare, the company-average is 44.8% positive. This is according to Glassdoor user ratings.
Candidates applying for Software Engineer roles take an average of 33 days to get hired, when considering 27 user submitted interviews for this role. To compare, the hiring process at Proofpoint overall takes an average of 29 days.
Common stages of the interview process at Proofpoint as a Software Engineer according to 27 Glassdoor interviews include:
Phone interview: 28%
One on one interview: 18%
Presentation: 16%
Skills test: 10%
Group panel interview: 8%
Background check: 6%
Drug test: 6%
IQ intelligence test: 4%
Other: 4%
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