fo this function they use the following schema of interview process: phone interview, interviewin their office, self-presentation. The most import are phone interview that lasted arounf 40 min. And a presentation. I was asked to make 2 presentation: one about random subject, And the topic for another one the sent through email 1 day before the interview. A lot of helpful information to prepare for the interview you can found on salesforce, they use their patterns as an example. Quintiq also has a very good-looking office.