I attended a college career fair and received an invitation to take a 2 hour long assessment that consisted of simple subjects like world geography (30 mins) then got into a math portion that consisted of sequences, geometric sequences, then word problems (1hr 30 mins). A couple of days later they invited me to interview with a recruiter. Before the interview itself, I had to retake the math portion of the assessment in person. Afterwards, I interviewed with a recruit who matched me with a position and told me that someone will contact me whether or not they will continue the process. A day later, I got a call to interview with the head of the department. After that interview, I was called back for a drug test. The total interview process including the drug test took me about two weeks.