Tell me about yourself, when have you solved a problem on site, what are your strengths, what are your biggest weaknesses, what kind of leader are you, where do you see yourself... a few technical questions about engineering / technology but mostly a series of long and fast conversation with each different executive focusing on their speciality, with the interviewer talking the most and covering the company, different businesses, objectives and some of the problems they faced. It certainly sounded like a very innovative and interesting company.