2 to 1 interview, about one hour and a half. First they told me about the company and the job, then normal interview questions and finally a technical kind of exam, 8 pages long. With mostly questions about pipelines. Scenarios where i had to describe what happens to the pressure and to the flow. Then one questions about ADCs, statistics, simple algebra, and logical gates. They also show you a very simple drawing and make you say its parts.