The entire process took about 2 months. First had a 30 min phone interview with HR. The on site interview took about 5 hours. Interviewed by the director and process engineers. I toured the plant with process engineers. Overall very good experience, seemed like a great place to work. Everyone I spoke with was very friendly.

6 hr process (Baltimore, MD location). Interviewed by their R&D director at the beginning (and end) of the day followed by four individual interviews with HR and engineers including a plant tour and restaurant outing. As a recent graduate (first professional interview) the length and stress of the process was a challenge, but I was extremely impressed by the time they dedicated to ensuring the position was a mutual fit and how personable everyone I meet was.