Fairly brief. Initial application form, followed by numerical and psychometric testing. I was then invited for phone interview. The interview is outsourced so no connection with the interviewee, they sounded very uninterested which was very off-putting.
They asked lots about their values (i.e. bias for action, adding value). Many of the questions I didn't quite understand and must have given very wrong answers for. Make sure you read the information they give you regarding the phone interview very thoroughly!