I have been working at Exponent full-time
Great people; interesting projects; flexible schedule
Hard to move up in the company if you are not an engineer.
I applied through a recruiter. I interviewed at Exponent (Oakland, CA) in June 2017.
The process was 7 individual interviews for 30 minutes a piece and included a 30 minute presentation by the interviewee about their research. Every interviewer was friendly and helpful but noticeably perceptive. Do not let yourself become too comfortable in the setting because of how informal the interviewers seem.