Braintree Senior Software Engineer interview questions

I applied to Braintree as I felt that it was one of the fintech teams where I might be a good fit. The recruiters were prompt and helpful throughout the process. I did a coding test, and a phone interview before my virtual on-site that had a technical interview, a Core values interview, a code- pairing , a system design and a final interview with a manager. I felt like I put my best foot forward and I was honest and sincere about my abilities and shortcomings. So I genuinely felt confident for maybe the first time ever in an interview. All the interviewers were great and I enjoyed the time spent during the interviews. They made it a point to tell me that they are not going to have any trick questions and put me to ease.. It would really be great to work with any of them. But...i didn't make it. So I would mark this as a difficult interview as I really do not know what I could have done better. The recruiter said that the cool off period is a year.