The interview process consisted of four separate interviews (the HR interview, a technical interview with the team supervisor, a non-technical interview with the supervisor of a closely collaborating team, and finally the department head) and a timed programming task. The technical interview and task were reasonably challenging. The communication interval was approximately one week.
Complete ghosting - there were more than month intervals between interview steps. There was not any clear description about reject. Interviews were super easy and not challenging at all. Will try to avoid next time.
Interview questions [1]
Question 1
Classic questions about working experience and hard skills.
I applied through an employee referral. The process took 2 months. I interviewed at Oura (Helsinki, Southern Finland) in Nov 2024
Interview
HR call -> team lead interview -> job-related assignment (scheduled a time and had a specified time-window to report back) -> technical interview -> meeting with a higher leader. The process went smoothly, I was always informed of decisions and next steps within a couple of days.
Interview questions [1]
Question 1
Why is overfitting a problem in data science and how do you take that into account?