As much as its possible for interviews to be low stress, Oura's technical interview achieved it. I had 4 interviews with hiring manager, product manager, Android engineer and backend developer. Each of the interviewers was well prepared.

The overall process was smooth and well structured. I went through five steps: an initial introduction with HR, two technical rounds (one 90-minute architecture/design session and a take-home project with a review a few days later), then a conversation with the hiring manager, and finally a wrap-up with HR. All the people I spoke with were genuinely friendly and made me feel comfortable from the very beginning, which helped a lot with the technical deep-dives. The discussions were focused, fair, and felt like real engineering conversations rather than “gotcha” questions. Overall a positive and respectful experience.