I got a call from a recruiting firm and scheduled the phone interview with the hiring manager. I received an email for an onsite interview within a couple of hours.

The onsite interview was in Connecticut, and they flew me to JFK. Then, it was a rental car drive of around an hour.

The interview was with six people, and they were all friendly and nice, except for one who has a Ph.D. and has been working there for 10 years. He started asking about some random dynamics questions, and then when I asked him for the solution, he told me to do it as a take-home exam.

Then, when I was with my last interviewer, one previous guy gave one cheat to him, and they asked me to interview with one more person. I refused because I had to catch my flight back.

The company is pretty old-fashioned, and everyone there has been working in the same company for around 5 years.

I got a call from the recruiter after a couple of days, letting me know that because I refused the additional interview, they didn't want to go ahead with me. It was a whopping 4.5-hour interview.

Just casual questions on control systems, projects, and previous experience.