First was a coding challenge that gives you 12 hours to complete in one sitting. This coding challenge can definitely be done in less than 12 but its nice to not feel rushed to solve the problem The second is a Karat coding challenge, this is a webcam/coderpad style. They emphasize that you can get a second chance but I honestly believe its due to Karat's policy and not Pinterest so I would try to ace the interview the first time. The Three is an onsite interview, I didn't make it this far but its 4 technical interviews back to back to back to back.