I applied online. The process took two weeks.
They have a really great interview process. It is a conversation about work you've done, and a time-bound take-home test where the communication is really polite and respectful of your time. The team seems really great. After I submitted it, however, it took multiple emails and contacting engineering staff to get them to reply that I'd been rejected. That was the only low point of the process.
Here is a project. You can fix or add what you want to in the time limit.
The following metrics were computed from 1 interview experience for the Monzo Android Software Engineer role.
Monzo's interview process for their Android Software Engineer roles is extremely selective, failing the vast majority of engineers.
Candidates reported having mixed feelings for Monzo's Android Software Engineer interview process.