I applied for an offer of QA Tester that I found in their website. They quickly contact me and had a couple of interviews, the first with the head of QA and one member of HR department, after the interview I had to do a test and submit it. I passed the test and the interview and I had a second interview again with the Head of QA and one of the managers. After few days the invite me to come from Madrid to Berlin to meet the team and the office, after that I signed the contract