Sounds like a great job. Ask thought provoking open ended questions that show the interviewer that you genuinely care about the position, the company, and your role if you get hired. A good example would be - What do you think are the most important qualities for someone to excel in this role? Good Luck

So jealous! I think you should ask questions about what the biggest security risks are for the company, and what you can do to succeed in the role. When's your interview?