First stage was a 30 minute interview with hr, she explained the job to me as well as the hiring process and we discussed my motivations. The second stage was a 45 minute interview with the hiring manager which involved technical questions and asked about my current position. The third stage was a take home technical test which was around 15 questions involving SQL, debugging, c# and some financial definitions such as VaR. The 4th stage was an interview with the hiring manager and a member of the team which took about 30 minutes. 3 weeks after this stage I was informed that they had selected another candidate.