After emailing them with a CV and cover letter they gave me a phone interview, it lasted about 30 minutes. They were nice and professional, made me feel at ease. After that there's an aptitude test followed by a half-day long interview at their offices.

An initial, online personality assessment followed by a 30 minute video interview and a 5 hour in person interview. Both interviews were set up in such a way to relax applicants and make sure your real personality shines out. The online interview was more of a chance for them to get to know you alongside some very simple technical questions whereas the in person interview was a lot more in depth, offering a chance for you to work through technical problems and how you'd approach commercial situations as well as showing off some code you've developed.