First a coding test should be done. If you pass the test then a telephone interview will be arranged. The prepare time for the interview is short, two days. And the time between the coding test and the interview is rather long, about a month. During the interview, self introduction is not asked and some examples that indicates your ability are required. Better to prepare more than two or three.

Sky Engineering Academy I applied online, and received further instructions a week later. I had to do a programming task home and had a week to complete it. Not the hardest thing I've done by far, but because I tried to ace it, it took me an unexpected amount of time (several afternoons). After this, I was appointed for a phone interview, really short, they just wanted to confirm my personal data and to make sure I understood the conditions of the position. I was then scheduled for an assessment day, in which I was required to work with other candidates over the day. We would have people looking at what we were doing for the whole duration, but they were friendly and even offered help at times. The tasks we were asked to do collectively were really fun, with even robots involved! The atmosphere was really friendly the whole time, I can't stress this enough. There was also a small 1:1 interview in which they asked the usual personal questions (what is your worst defect etc...). At the end of the day, they guided us through their campus and installations and let us talk with current employees to ask anything we wanted without anyone overlooking what questions we were asking. Overall I couldn't be more impressed.