Exponential-e Engineer interview questions

The process was fairly quick once I got past the interview. I was meant to have the interview on the Thursday, which was moved 2 times, to Friday, then Monday. Once inside, I came in and the interviewer was around 10 minutes late, and the interview went on for around an hour and half. After the interview was finished, I went home about 3 hours later they called me and told me I start in 2 weeks if I accept.