Was contacted by recruiter, applied with CV and brief summary of why I wanted the job. Got offered a job interview the very next day. First was 3 tests in 30 minutes- maths, data sufficiency and reading comprehension (which was HARD)- I only got 19/23 on this, read somewhere that 21/23 was pass mark. The next bit involved problem-solving, using the Message Standard, and a proposed dataset. You had to find errors in the dataset, and then write some queries in an XML-style language. The final bit was similar, it involved looking at a proposed list of questions for an employment survey, and finding problems (irrelevant questions, overlapping choices, too broad/ too specific choices). Overall, enjoyed the afternoon, but think I failed it on the reading comprehension.

Two stages, both general interview questions with a technical portion going through a case study. The first stage included 3 maths/logic based questions. Both interviewers were professional and I felt relaxed going through the case study with them.