The procedure is quick.
The boss interviewed me himself, which is surprising as I was applying for a very junior position. Disliked his attitude. He boused about the achievement of the company and mourned about difficulty of running a company.
Portfolio, self introduction, why this company, what softwares you know, explains own company, big boss interviews you, how long you plan to work there, future plans, masters plans, cannot choose which team you are part of