First interview was very conversational. Very relaxed and it just felt like I was having a chat with another person passionate about aerospace. The interviewer gave me an overview of the position and the company then the rest was him poking around at my resume and what I was looking to get out of the job. Second interview felt more like a real interview (felt like more rehearsed questions and less just like a casual conversation, but that's also what I would expect). Still relatively relaxed and a good experience.

Interview was exclusively technical questions (flexure formula, Archimedes principle, design for manufacturing, etc.) It is best to prepare by reviewing the Fundamentals of Engineering handbook based on the topics mentioned in the job description. This will help you find an equation, law, theory, or relationship to based your answers off of.