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HackerOne Interview Questions
& Process

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

Based on 213 interview experiences · FREE TO READ

3.5 Rounds average
Average Typical difficulty
83.6% Positive experience

Which role are you interviewing for?

30 roles · 213 reports

Candidate interview experiences

First-hand accounts from people who interviewed at HackerOne.

Showing 4 of 213
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HackerOne

Engineering Manager

Engineering · half a year ago

Senior Average Positive experience Accept offer 4 rounds
Interview process
Recruiter call Phone screen Panel Onsite
Interview formats
Behavioral Technical Presentation

It was a pretty standard interview process for an EM role. Started with a recruiter screen, then a chat with the hiring manager. After that, there were two 2-hour panel interviews, one focusing on tech and the other on delivery. The final step was meeting with the SVP of Engineering. HackerOne was really friendly and communicated quickly. The whole thing took about two weeks, but they were cool with speeding it up since I had another offer. They even gave me a verbal offer the morning after the last interview and had the paperwork ready that same afternoon.

Confirmed questions5 questions
  • Can you share an instance where your manager provided you with constructive criticism? What specific area required improvement, and how did you collaborate with your manager on addressing it? How did this experience influence your approach to people management?
  • Tell me about a project you've worked on previously.
  • What technical decisions were made on a past project, and can you explain the rationale behind them, including the process and who was involved?
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HackerOne

Software Engineer

Engineering · nearly a year ago

Senior Average Positive experience Accept offer 5 rounds
Interview process
Recruiter call Phone screen Technical screen Onsite Technical screen Technical screen Offer
Interview formats
Behavioral Technical Coding System Design

So the whole thing kicked off with a recruiter chat, then I talked to the hiring manager who asked about my background and some behavioral stuff to see if I'd fit in. After that, I had to do a technical test on HackerRank for Rails. Then came a live pair programming session, which was pretty cool and tough. The last technical part was a system design interview about real-world scenarios, and then we talked about the offer. Everyone was super professional and helpful throughout, making sure to understand my background and getting interviews set up when I was free. The recruiter was great at keeping me in the loop and making sure everything ran smoothly.

Confirmed questions1 question
  • Tell me about a difficult yet interesting problem you've tackled in past projects. What was your strategy, and what insights did you gain?
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HackerOne

Product Security Analyst

Engineering · nearly a year ago

Mid Average Positive experience Accept offer 3 rounds
Interview process
Recruiter call Technical screen Onsite
Interview formats
Behavioral Technical Other

The interview process at HackerOne was pretty smooth and laid out well. I went through three rounds total. First up was just an intro chat about my background and to ask questions about HackerOne. Then, I had a technical round where they hit me with questions about OWASP Top 10, different web app flaws, and how I understand triaging. The last round was a hands-on triage simulation where I had to show how I'd do a triage summary, assign a CVSS score, and manage cases in a test environment. It was all pretty clear and seemed designed to check out both my tech smarts and practical skills.

Confirmed questions8 questions
  • How would you go about triaging actual vulnerability reports?
  • What are your thoughts on the OWASP Top 10, and how do you apply that knowledge?
  • Tell me about different kinds of web application vulnerabilities you're familiar with.
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HackerOne

Software Engineer

Engineering · nearly a year ago

Senior Easy Negative experience No offer 1 round
Interview process
Recruiter call
Interview formats
Behavioral

So this company claims to be "remote-first", but then during the hiring process they told me they were looking to hire people who were based in London, even though the manager wasn't based there. This felt a bit off and like a waste of time because they could have just said that in the job description.

Confirmed questions1 question
  • Standard screening questions asked by talent acquisition.

HackerOne Interview Questions

Quoted word for word from HackerOne interview reports.

Given an existing public bug bounty, what is the justification for conducting a penetration test?

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How do Cross-Site Request Forgery (CSRF) vulnerabilities work, and what are the ways to mitigate them?

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How would you describe Cross-Origin Resource Sharing (CORS) and the circumstances under which it can be exploited?

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Could you walk me through how SQL Injections work, including Blind and Time-based methods?

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Can you explain the different types of XSS attacks and how to mitigate them?

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Can you describe the OWASP top 10 and specific vulnerabilities like XSS, CRSF, SQLI, and IDOR?

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How would you score this risk using CVSS, and can you explain your reasoning?

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Can you explain the OWASP Top 10 and the concepts involved?

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Could you write a SQL query to join multiple tables and generate a report in a specific format?

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Formats, difficulty and experience

Across all 213 HackerOne interview reports.

Interview formats

Behavioral 40.4%
Technical 29.8%
Presentation 13.5%
Coding 7.3%
Other 3.1%

Interview difficulty

Easy 12.2%
Average 70.4%
Difficult 17.4%

Candidate experience

Negative 11.7%
Positive 83.6%
Neutral 4.7%

Reports by job function

Engineering 95
Sales 48
Operations 28
HR 11
Other 8
Marketing 6