Very difficult and you will need to prepare very well for this, but you go through an online test, then an online interview and then in person in the London office. Was not the greatest experience in my opinion.

Half the interview was on a role play relating to the company's upcoming projects or potential changes, and the other half was based on competency-related questions, which are more common and alike to other companies, asking about your previous experiences and simply an opportunity to prove why you are fit for the role.