Sent and email, was invited to send my cv + cover letter, was invited to an interview. Interview day: three interviews in the morning, all of them ±20 minutes CV discussion and ±30 minutes case. Cases were mostly profit calculations, but also market entry (discussing what the customer profile for a new entrant would be). Afterwards: second round in the afternoon, two interviews with partners. One included a case, the other one was a pleasant chat.