You are contacted by phone within 2 weeks. When you show up to HR, you will meet one of their friendly recruiters and sit for about 45 mins if things are going well. No need to be nervous because they are very personable. If you had passed the sit down, they will introduce you to the hiring manager who would be your supervisor and then you would have a 30 min interview with them. Within a week you will know if the hiring chose you for the job.