Prepare for exam type interview that are irrelevant to the position just because the founder is civil engineer. be prepared if you want to do well and review your fundamentals.

Group Interview, but fairly relaxed. There were two interviewers and three of us were being interviewed. Fairly standard questioning, with the person sitting on the right answering first, then the middle person and then the left. I would advise dressing business casual as the one of the interviewers was wearing a polo and jeans.