I applied to this positon on September 23rd, and about 3 weeks later I got emails about the OA. I spent a few days doing OA1, OA2, and OA3. Today I got an email asking me to schedule a 30 min timeslot sometime next week for the final round virtual interview.

In the email it said it would last about 30 min, and after this interview I'll either get an offer or be rejected. Anybody here know what this is about and how I can prepare for it?

Here is the job position: https://www.amazon.jobs/en/jobs/1204412/software-development-engineer-2021-united-states