I applied online. The process took 3 weeks. I interviewed at HackerOne (London, England) in Jul 2025
Interview
As far as interviews go, it was a great experience! HackerOne managed to make the interview process straightforward and to the point, with plenty of support and guidance throughout the process. The interview consisted of 4 stages in total and was over in about 3 weeks, in which I received an offer. Each of the stages were your typical tech interview stages but, rather than an intense grilling session, it was more laid back and engaging which is a breath of fresh air
Recruiter interview, Hiring Manager, Onsite (technical, behavioral). Total time 3-4 weeks. Clear process with recruiter checking in every step of the way. Onsite behavioral was more about culture fit past experiences.
I applied through a recruiter. I interviewed at HackerOne (Groningen) in Sep 2025
Interview
I received an invitation from a recruiter to apply. The interview process consisted of three stages: a cultural fit interview with the person who would be my manager, a live coding technical interview, and a system design interview.
Interview questions [3]
Question 1
•The cultural fit interview was focused on getting to know each other and discussing experience, values, expectations... etc.
•The system design interview required designing a system to solve a given problem, explaining the solution, and answering follow-up questions.
Nothing overly complex, and all the interviewers were lovely and supportive throughout the process.
I applied through a recruiter. The process took 3 weeks. I interviewed at HackerOne (Austin, TX) in Aug 2025
Interview
The interview process was very high quality; from the very beginning, the recruiter and hiring manager were very communicative and answered any question I had during the process. Each individual had genuine interest into "who you are" and made the interactions feel more like a conversation rather than an interrogation. The technical interview was collaborative and fun, challenging you to think deeply without the typical "gotcha" questions that are difficult to complete. After having done quite a few interviews through my career, I can confidently say that my interview experience at HackerOne was one of the best.
Interview questions [1]
Question 1
I can not disclose questions during the interview, but preparing general behavior questions as a starting point would be my suggestion.
