There was first a quick phone interview with HR, then they set one up with the hiring manager. I spoke to them for 15-20 minutes. The manager set up a panel interview for 1-hour with 5 individuals. Each interviewer took a turn to ask me various questions about my experience, skills, and business knowledge. Afterwards, the manager approved for HR to send me an offer letter. I worked through the HR agency for the rest of the hiring process.