My interview was with the CEO and Head of the Plant Metabolic Division. There was no direction to the interview outside of the first 3 questions that they asked, which led to a decent amount of awkward pauses and staring. In addition, the CEO was cold - giving terse, sometimes one word answers to questions that I asked. One of them also referred to my potential coworkers as "people of your level". Maybe they were having a bad day, but the experience did not give me a favorable impression of their company.