Interview process consisted of one behavioral and one technical as the final round. The behavioral was very chill with standard questions going through resume, how you work on a team, problems you approached to solve, etc. (I did not get to the technical however)

Met with four different engineers over a four-hour period and felt relatively relaxed. The interviewers asked questions related to the Software Engineering position I was interested in (Growth team) and I was drilled on basic JS concepts and given front-end programming logistical questions. One interviewer asked me behavioral questions pertaining to what I expected at WHOOP and how I would be a good culture fit, and another one asked relatively average programming problems you'd see on LeetCode (easy/medium). Overall I felt pretty comfortable talking with the interviewers and became convinced that I wanted to work here after learning more about their startup culture and their product.