Received a phone interview with a hiring manager, behavior type questions about myself and work ethic. Followed by a 5 panel 1:1 interview. Each interview lasted 30-45 min and mainly technical about thermodynamics and science.

Received screening call from recruiter. Same day phone interview with hiring manager. Invited for onsite interview two weeks later, consisting of technical presentation and five 1:1 interviews with different team members. They also do not cover interview travel expenses. Very slow process. I accepted another offer in the meantime.