They offer you either a phone interview or an online test. I would recommend the online test and to cheat, as the level of questions is freaking hard. If you go for the phone interview, it's going to be harder, as the level of questions is too high.
The following metrics were computed from 7 interview experiences for the Airbnb Software Engineer (Backend) role in United States.
Airbnb's interview process for their Software Engineer (Backend) roles in the United States is extremely selective, failing the vast majority of engineers.
Candidates reported having very negative feelings for Airbnb's Software Engineer (Backend) interview process in United States.