I sent an email from my school's system to the company in response to a listing. They called me to set up a date for an interview, and then emailed me the specifics. I drove there and asked some workers on break where the office was, and told the guy at the desk that I was there for an interview. The senior engineer greeted me and I sat down with him and a safety/environment specialist at a conference table. They asked a few questions and then told me everything about the job; small talk about engineering was had