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Vast Interview Questions
& Process

Real candidates share what happened, how many rounds they had,
and how the experience turned out.

Based on 38 interview experiences · FREE TO READ

3.2 Rounds average
Average Typical difficulty
52.6% Positive experience

Which role are you interviewing for?

16 roles · 38 reports

Candidate interview experiences

First-hand accounts from people who interviewed at Vast.

Showing 4 of 38
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Senior Software Engineer

Engineering · nearly a year ago

Senior Difficult Positive experience Accept offer 7 rounds
Interview process
Recruiter call Phone screen Presentation Onsite Offer
Interview formats
Presentation System Design

It took about two months from applying to hear from a recruiter, but they were able to speed things up once we connected. I did a recruiter screen and a hiring manager screen, then had my onsite interviews. The onsite involved a presentation and then six separate interviews, and I got the offer all within a single week. The recruiter was awesome, and the interviewers were really thorough, making it a good process overall.

Confirmed questions2 questions
  • A one-hour presentation focusing on your motivation for joining Vast.
  • Prepare for several system design questions about challenges the company faces.
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DevOps Engineer

Engineering · a year ago

Mid Average Neutral experience No offer 3 rounds
Interview process
Recruiter call Technical screen Onsite
Interview formats
Behavioral Technical

The initial setup was good. Interview prep was just okay, but there were strange questions about how I would solely lead an entire effort without a team, which seemed odd given the industry typically values teamwork. The team members who interviewed me were great and gave good feedback, even guiding me towards the answers they were looking for. The interviews were scheduled for 3-4 hours but were cut short due to production issues. It seemed like everyone was very busy. I suspect if I had gotten the job, it would have involved a lot of independent problem-solving. The recruiter didn't follow up, and there was basically no communication about the rejection, which was disappointing as a nice email would have been appreciated. Oh well, moving on.

Confirmed questions1 question
  • What was your reason for selecting this company?
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Software Engineer

Engineering · a year ago

Senior Difficult Neutral experience Accept offer 4 rounds
Interview process
Recruiter call Technical screen Presentation Onsite
Interview formats
Technical Coding Presentation

The entire interview process spanned around seven weeks. It began with a recruiter call, followed by a technical coding challenge that involved an easy problem. After that, I had an onsite interview which lasted about four and a half hours. This onsite included a one-hour presentation of my technical work, and then five one-on-one interviews back-to-back. The interviews themselves felt fast-paced and practical, and most of the interviewers were quite friendly. However, the onsite interviews felt too rushed, and the overall recruiting process took way too long. The interviews were only 20-30 minutes, which felt too short for the technical conversations and problems, making things feel chaotic. Each interviewer started late and ran over their time, which disrupted the schedule for the following interviews. I also had to wait for weeks for a formal offer and only got vague updates after sending multiple emails.

Confirmed questions3 questions
  • Could you discuss your experience with system architecture?
  • Tell me about a time you consumed an API.
  • Describe your experience designing APIs.
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Vast

Staff Engineer

Engineering · a year ago

Staff Average Negative experience No offer 5 rounds
Interview process
Recruiter call Phone screen Presentation Panel Offer
Interview formats
Behavioral Technical Presentation Behavioral

I started with a call to the recruiter, who's also on the founding team. Then I had a technical phone interview with the head of the department. After that, I got an invite for an onsite interview. The onsite included me giving a presentation and then several panel interviews with the team members. About a day later, the recruiter/founder called and said they were very impressed and were going to offer me the job, and I'd get the written offer in a few days. It took over two weeks to get the offer, and they just gave me vague updates about waiting for 'executive approval.' Finally, after about 3 weeks, they told me they offered the position to someone else. It felt like a dishonest, unethical, and unprofessional run-around. They should have just told me if they wanted to interview other candidates, not verbally offer me a job and then falsely claim a written offer was coming, probably to keep me from accepting another offer. I can't imagine how they manage their employees, so I'm glad I dodged that bullet.

Confirmed questions1 question
  • What makes you want to join VAST?

Vast Interview Questions

Quoted word for word from Vast interview reports.

Can you describe the current methods used by the ISS to produce oxygen?

Read reports

Can you sketch out the components you envision for a laser communications system?

Read report

Formats, difficulty and experience

Across all 38 Vast interview reports.

Interview formats

Behavioral 37.2%
Technical 30.2%
Presentation 19.8%
Coding 5.8%
Group 3.5%

Interview difficulty

Easy 15.8%
Average 57.9%
Difficult 26.3%

Candidate experience

Positive 52.6%
Neutral 31.6%
Negative 15.8%

Reports by job function

Engineering 32
HR 2
Sales 1
Finance 1
Analytics 1
Operations 1