1st- phone interview with HR, 2nd- phone interview with sales manager, 3rd- phone interview with sales manager's boss, 4th- in person interview with presentation. It took a month. The human resources portion was making sure you make basic requirements. The sales managers want a self-started who will work, while boss is flying all over US, so you have to show that. Final interview, they want to see what you do when given a week to prepare for a presentation, how much effort do you put in.