Applied online. Received an email about 3 weeks later about an interview. Interview was with 5 people, 3 PhDs, 1 HR, 1 Lab Tech. I was interviewed by 2 people at a time in 30 minutes intervals. Mostly, was questioned about my previous experience and education. Mostly technical rather than behavioral based questions. Was a lengthy process but well formatted and relaxing environment. I am scheduled for a second interview which is a month after first interview. Thus, no offer yet since I am still in the process. BASF is very thorough in their process. My second interview is with 6 people, I assume the same format as before. Great company to work for and potential for growth.