1. HR: the same as other company, standard
2. One team member interview: went through my CV, IQ test, very basic SQL query test
3. another round with two team members, repeated exactly the same question as last round. Even the SQL queries tests are very similar.
4. Hiring manager shortly introduced the role and informed the offer
All interviews are on Google hangout, no onside experience. That is a very clear downside of Zalando. I could not take an offer without seeing the office and meeting the team.