First you just had to submit an application with your qualifications, then you are invited to an assessment with numerical, logical and verbal reasoning questions. This is untimed. Following this you must complete the job simulation which is a combination of a video interview and parts where you have to respond to emails. The final stage is the interview at the Deloitte office. I didn't have an assessment centre. Just an hour long interview. The interview was very casual and relaxed. I didn't receive an offer but was put on the waiting list.