There are three round of interviews, first will be your hiring manager, second will be the director and the last will be HR. The sequence of each interviewer may be different but basically will be 3 of them

First interview: The in-person interviews usually begin with a one-on-one interview with the hiring manager. During this initial meeting, the interviewer typically asks questions about the candidate's qualifications, skills, work history and relevant experience. Second interview: After the initial in-person interview, the meetings tend to get more in-depth to further examine a select few candidates and determine which ones are real contenders for the job. Second interviews sometimes serve as an additional meeting with the same interviewer, or they can serve as a day-long meeting that involves multiple interviews with various members of the staff, such as executives, staff members and supervisors. Third interview: While this step is somewhat rare, companies sometimes use three or more interviews before selecting a candidate. These meetings often involve an opportunity for current employees to meet the prospective new hire.