The first stage, after submitting your CV and a cover letter, is a simple video interview where you must submit answers (pre-recorded) to 3 questions. The questions were relatively simple and you could re-record your answers if you made any mistakes. The third question was more scenario based where they gave you an example of something that could go wrong and you needed to give options to prevent it happening in the future. The second part of this stage is a maths test with around 10 questions. It isn't timed but they do say they keep track of how long you took for each, and factor that and if they are correct, into your final result.