Relaxed and conversational. Know your resume, and keep it as up to date as possible. Add technical skills, not soft skills. They expect you to have questions ready for them. They will also want to know what you want out of this experience.

Easy interview with one screening and one 30 minute behavioral call where they just went over a couple STAR based questions to get a feel of your personality. People were very freindly and inviting during the process

Relatively simple, common behavior interview questions kn interview 1 and 2 technical questions in interview 2. The technical question was based on force and its application to a basic object: how you would analyze it, not necessarily actual math needed to be used.