The interview process was one of the best I've experienced in recent years. The recruiter was extremely transparent and communicative, making the whole process easy to navigate. About 6 months prior to this series of interviews, I had interviewed at HackerOne for a different position. They ended up selecting a different candidate (for reasons I found out later and agree with). However, when more positions became available, the recruiter proactively reached back out. Because I had gone through the process recently enough, we only covered team/role fit this time around. Of the two interview sessions, one was with the hiring manager, and the other with the team's lead engineer. There were a couple of standard behavioral questions ("tell me about a time when..." etc.), but they were mostly conversational. Overall, it was a great candidate experience. HackerOne has made the interview process significantly less-burdensome on the candidate by doing a number of small things to reduce stress and cognitive load.

Pretty direct interview process. Recruiter, Hiring Manager, Code Tech, System Design, and Culture Fit. Shorter then the average and very quick. Nothing was a gotcha, just straight forward questions mostly trying to start a conversation to get your deeper thoughts.